Journal articles on the topic 'Dust Environmental aspects'
To see the other types of publications on this topic, follow the link: Dust Environmental aspects.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Dust Environmental aspects.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Dudar, Tamara V., Olga V. Titarenko, Alla N. Nekos, Olena V. Vysotska, and Andrii P. Porvan. "Some aspects of environmental hazard due to uranium mining in Ukraine." Journal of Geology, Geography and Geoecology 30, no. 1 (April 7, 2021): 34–42. http://dx.doi.org/10.15421/112104.
Full textAbstract:
Some aspects of environmental hazard within uranium mining areas are considered. The uranium content in the environment components (rocks, soils, underground and surface waters) of the central part of the Ukrainian Shield within and beyond the uranium mining area is analyzed on the example of the Michurinske ore field. It is emphasized that man-made sources of natural origin should be considered more broadly than just waste dumps from uranium mining and processing enterprises. These are sources of ionizing radiation of natural origin, which have been subjected to concentration or their accessibility has been increased because of anthropogenic activity. Additional irradiation to the natural radiation background is formed. Waste dumps of uranium mining are considered as sources of potential dust pollution in the surface layers of atmosphere with fine dust containing uranium, its decay products and associated elements. The area of waste dumps is calculated using space images. Uranium accumulates in the dusty fraction, where its content is 0.01-0.06%. Taking into account the geological and geochemical characteristics of uranium deposits, radioactive elements, heavy metals and other associated elements of uranium mineralization are car- ried out of the dumps by winds and atmospheric waters with their subsequent migration into environment components. A mathematical model of potential dust air pollution in the area of long-term operation of the oldest uranium mine is presented for the summer 2019. In total, 15 factors influencing the potential threat of air dust pollution are considered and analyzed. The mathematical model is developed on the basis of the method of discriminant functions. To assess the degree of the model parameters informativeness, one-factor covariance analysis is used. It allows assessing the degree of a single sign influence on the prediction result. The developed model takes into account the area of waste dumps, uranium content in the dust fraction and wind direction southeast and/or east as the most hazardous for the study area. The model allows determining correctly the level of potential threat of air dust pollution in 96.3% ± 3.6% of all cases.
2
Száková, J., J. Sysalová, and P. Tlustoš. "Particular aspects of environmental impact of potentially risk elements from airborne particulate matter." Plant, Soil and Environment 51, No. 8 (November 19, 2011): 376–83. http://dx.doi.org/10.17221/3613-pse.
Full textAbstract:
Two simple experiments were carried out to demonstrate two possible ways of environmental impact of element contents in airborne particulate matter. In the first part of the experiment, the response of three rural dust samples applied into the soil were assessed in pot experiment to observe uptake of As, Cd, Pb, and Zn by aboveground biomass of oat (Avena sativa L.). Although the element contents in dust samples exceeded significantly total element contents in soil, the element content in plants was not affected by single-rate soil amendment with rural dust sample. Soil sorption capacity and neutral pH of the experimental soil (7.0) was sufficient for immobilization of the elements. However, potentially mobilizable portions (0.005 mol/l DTPA extractable) of elements significantly increased (Cd by 116%, Pb by 39%, Zn by 50%) in the treated soil, which suggests a possible release of these elements in long-term horizon. On the contrary, high percentages of potentially toxic elements (Cd, Zn, Ni) in the most mobile (exchangeable) fractions were determined in the second part of investigation in two urban dust samples collected in Prague Letná automobile tunnel, and Prague subway station Museum. These results suggest possible direct impact of mobile, and thus potentially bio-available, element fractions on human environment. The results of both particular experiments cannot give complete information concerning behavior of harmful pollutants in airborne particulate matter and their influence on human health. They can however indicate two of possible ways of environmental pollution with this material. Yet, it would require a more detailed investigation in future.
3
Игнатова, A. Ignatova, Папин, A. Papin, Солодов, and V. Solodov. "Environmental and Technological Aspects of Coke Dust Recycling as Fuel Briquettes." Safety in Technosphere 2, no. 2 (April 25, 2013): 66–70. http://dx.doi.org/10.12737/329.
Full textAbstract:
Technological schemes related to production of fuel briquettes on the basis of such waste of coke and chemical industries as coke dust and coke sludge are considered. The quality assessment results of produced fuel briquettes are presented.
4
Huljek, Laura, Sabina Strmić Palinkaš, Željka Fiket, and Hana Fajković. "Environmental Aspects of Historical Ferromanganese Tailings in the Šibenik Bay, Croatia." Water 13, no. 21 (November 5, 2021): 3123. http://dx.doi.org/10.3390/w13213123.
Full textAbstract:
The former manganese ferroalloy plant and the remaining tailings are affecting the quality of the environment in Šibenik Bay, Croatia, even though industrial activities ceased more than 25 years ago. This study has revealed that the main manganese mineral phases present in the recently collected tailings, as well as in the dust collected on the roof of the plant during the production period, are bustamite and Mn-oxides. The same type of Mn mineral phases was also found in recently collected sediments from Šibenik Bay. Detailed chemical and phase analyses (XRD, BCR sequential analysis, aqua regia and lithium borate fusion) of the dust sample revealed high manganese values (24.1%), while granulometric analysis showed that 50% of the particles are smaller than PM2.5. The influence of the tailings is visible in the sediment, but the concentrations of the potentially toxic elements determined by the sequential BCR analysis are within the legal limits. Some higher values (20.3 g/kg Mn, 595 mg/kg Pb and 494 mg/kg Zn) are detected in the tailings, which are still exposed to weathering and as such should be additionally monitored. On the other hand, this material contains a considerable number of elements that could be considered lucrative (∑ REE up to 700 mg/kg, Mn up to 23 g/kg, Fe up to 37 g/kg and Al up to 25 g/kg), opening the possibility of reuse and recovery.
5
Ciobanu, Cristian, Gheorghe Voicu, Irina Aura Istrate, and Paula Tudor. "Aspects Regarding Polluting Emissions to the Stack of Clincher Ovens in Romanian Cement Factories." Advanced Engineering Forum 42 (September 7, 2021): 159–66. http://dx.doi.org/10.4028/www.scientific.net/aef.42.159.
Full textAbstract:
The paper presents an analysis of the flow of flue gases and dust in the area of the clinker kiln and in the area of the flour mill, as well as emission data for the last three consecutive years at the flour mill stack - clinker kiln, from some cement factories in Romania. In general, both emissions of dust (total powders) and pollutant gases (SOx, NOx, CO, dioxins and furans, VOC, heavy metals, etc.) were within the permissible limits set out in the Integrated Environmental Permit of the individual plants.
6
Ma, Jing Yi, Xing Yu Chen, and Wei Su. "Environmental Evaluation for Three Typical MSW Incineration Based on Life Cycle Assessment." Advanced Materials Research 850-851 (December 2013): 1360–63. http://dx.doi.org/10.4028/www.scientific.net/amr.850-851.1360.
Full textAbstract:
Garbage incineration is an effective minimization and resource processing methods, but there are no comparative analysises about the environmental impact of incineration processes. To investigate the environmental impacts of three typical MSW incineration processes, we modeled scenarios, calculated energy consumed and six aspects which classified as GWP, ODP, AP, EP, POCP and DUST. The classification results showed the value of the environment impact potential respectively. The impact potential of heat recover-dry absorption processes according to normalized results in descending order is GWP>EP>DUST>AP>POCP>ODP, in contrast the rank of heat recover-wet absorption and semidry processes is GWP>EP>AP>DUST>POCP>ODP, global warming impacts is the most significant penitential factor. The rank of impact potential according to weight factor in descending order is GWP>EP>DUST>AP>ODP>POCP. Dust potential became more significant. The weight factor of Dust is almost twice as much as that of AP. This is because there is a large gap between baseline level and the target level, the solid-waste are the focus of control in these years. In environmental terms, the environmental depletion index of heat recover-dry absorption process is lowest with minimal environmental impact and the heat recover-wet absorption process is the highest with largest environmental impact. The incineration with dry absorption program is the best environment-friendly process in term of environmental impact. Utilization of waste water and reducing total amount of water entering the system can effectively reduce the environmental implication for both HW and HS processes.
7
Volchyn, I. A., A. O. Yasynetskyi, and Wlodzimierz Przybylski. "ENVIRONMENTAL ASPECTS OF GREEN AMMONIA ROLE IN UKRAINIAN ENERGY SECTOR." Energy Technologies & Resource Saving, no. 2 (June 17, 2022): 76–83. http://dx.doi.org/10.33070/etars.2.2022.07.
Full textAbstract:
Ammonia production using traditional Haber-Bosch technology using natural gas or coal emits large amounts of carbon dioxide and consumes a significant amount of electricity, its generation consumes a lot of fossil fuel and produces a large amount of emissions of pollutants and CO2. The transition to the production of "green" ammonia with the help of electricity from renewable energy sources and nuclear power plants will require a significant increase in their capacity. This will not only avoid CO2 emissions from NH3 production, but also avoid emissions of pollutants and greenhouse gases at thermal power plants by replacing their capacity with "green" capacity. Ammonia as a fuel has environmental advantages over traditional fuels, as it does not emit dust, sulfur dioxide, carbon monoxide and carbon dioxide. Only nitrogen oxides are formed, the emissions of which are reduced by the use of selective reduction technologies. Promising combustion of mixtures of ammonia and hydrogen. Co-combustion of coal and ammonia in existing boilers can significantly reduce emissions of pollutants and CO2. Bibl. 18, fig. 2, table. 2.
8
Gubernskiy, Yu D., V. N. Fedoseeva, A. K. Makovetskaya, N. V. Kalinina, and T. G. Fedoskova. "ECOLOGICAL AND HYGIENIC ASPECTS OF THE SENSITIZATION RATE OF THE POPULATION IN A RESIDENTIAL ENVIRONMENT." Hygiene and sanitation 96, no. 5 (March 27, 2019): 414–17. http://dx.doi.org/10.18821/0016-9900-2017-96-5-414-417.
Full textAbstract:
There are considered ecological-hygienic aspects of the sensitization rate of population in residential environmental. The considerable part of the life of a person passes in conditions of residential environmental, he is exposed to the whole complex of sensitizing factors, with the house dust being the most important among these factors. Results. According to results of our research, the greatest number of allergic reactions was noted under the contact with domestic, pollen and epidermal allergens. In the structure of allergic diseases in the population the most frequent were allergic rhinitis and allergic rhinoconjunctivitis. The overwhelming majority of observed cases was shown to suffer from functional disorders of the autonomic nervous system, gastrointestinal tract, and there was also observed the presence of chronic foci of inflammation. As a result of the executed comprehensive hygienic evaluation of the quality of residential environment there was established that in conditions of residential and public buildings the array of chemicals also had allergical effect on population. Discussion. The complex chemical pollutants of the residential environment in isolation was shown to fail to exert anaphylactogenic activity, whereas in complex with house dust allergen there are revealed the decline in immunological indices of the nonspecific resistance and inhibition of functional activity of T-suppressors, and amplification of immediate hypersensitivity in condition of impact of allergical complex of domestic dust. The existence of disorders of different functional systems of organism also provokes the development of the state of the hypersensitivity of population. Conclusions. The sensitization of the population was shown to be directly affected by the combined effect on human sensitization with allergenic components of house dust and chemical pollutants. Factors contributing to the development and occurrence of allergic pathologies among the population include: the level of chemical contamination of residential environment, various functional disorders of the body systems, which give rise in increased sensitization of the population.
9
Shteiner, M. L., A. V. Zhestkov, and N. E. Lavrentieva. "Some aspects of management of patients with occupational chronic obstructive pulmonary disease: the value of bronchoscopy." Russian Journal of Occupational Health and Industrial Ecology, no. 9 (March 19, 2020): 817. http://dx.doi.org/10.31089/1026-9428-2019-59-9-817-818.
Full textAbstract:
Chronic obstructive pulmonary disease is a common disease that could lead to death. Pathogenesis of COPD involves both genetic and environmental factors. Such unfavorable production factors as dust, smoke, toxic and biologically active substances are the causes of disease in 15% of cases.
10
Semenenko, V. P., A. L. Girich, K. O. Shkurenko, and N. V. Kychan. "MACROCHONDRULES IN SOME CHONDRITES: 2. GENETIC ASPECTS." Mineralogical Journal 43, no. 3 (2021): 54–61. http://dx.doi.org/10.15407/mineraljournal.43.03.054.
Full textAbstract:
An electron microscopic and microprobe study of the macrochondrules from the chondrites Allende CV3, Krymka LL3.1, Saratov L4, "Velyka Balka" L4-5 and Château-Renard L6 allow to clear some aspects of their formation. The main of them are following: 1) The texture and mineral composition of the majority of the macrochondrules does not differ from those of ordinary chondrules, thus indicating a similarity in formation conditions, 2) It is shown for the first time that the SiO2/MgO and FeO/(FeO+MgO) ratios of the fine-grained rims of the macrochondrules and one`s of chondrules in the Krymka meteorite are well correlated. This indicates to their coexistence in the same dusty environment of the protoplanetary nebula, 3) The unique characteristics of the two firstly found macrochondrules allowed us to detail conditions of their formation and existence in the protoplanetary nebula. A polyzonal graphite-bearing macrochondrule from the Krymka meteorite formed by accretional growth in a mineralogically variable dusty environment. Its complex evolutional history involved remelting and selective evaporation of the macrochondrule surface layer, accretion of an environmental dust, late formation of a fine-grained rim and migratory intrusion of an organic protomaterial and finally a metamorphic event that produced graphite. The melted surface of a macrochondrule from the Allende chondrite was notably affected by high-energy processes and instantaneous cooling in the protoplanetary nebula, 4) The rarity of macrochondrules in chondrites compared to typical chondrules is probably related to their priority destruction. This was caused by permanent movement and collision between them and other solid objects in the pre-agglomeration period of meteorite development.
11
Nuss, Philip. "Losses and environmental aspects of a byproduct metal: tellurium." Environmental Chemistry 16, no. 4 (2019): 243. http://dx.doi.org/10.1071/en18282.
Full textAbstract:
Environmental contextStudies involving modelling are increasingly being performed to better understand how technology-critical elements such as tellurium are transported and accumulated in man-made technological systems. The resulting ‘anthropogenic cycles’ provide estimates of current and anticipated future material releases to the environment, and their associated environmental implications. This information complements data on natural cycles in which the subsequent transport and fate of tellurium in the environment can be examined. AbstractGlobal demand for tellurium has greatly increased owing to its use in solar photovoltaics. Elevated levels of tellurium in the environment are now observed. Quantifying the losses from human usage into the environment requires a life-cycle wide examination of the anthropogenic tellurium cycle (in analogy to natural element cycles). Reviewing the current literature shows that tellurium losses to the environment might occur predominantly as mine tailings, in gas and dust and slag during processing, manufacturing losses, and in-use dissipation (situation in around 2010). Large amounts of cadmium telluride will become available by 2040 as photovoltaic modules currently in-use reach their end-of-life. This requires proper end-of-life management approaches to avoid dissipation to the environment. Because tellurium occurs together with other toxic metals, e.g. in the anode slime collected during copper production, examining the life-cycle wide environmental implication of tellurium production requires consideration of the various substances present in the feedstock as well as the energy and material requirements during production. Understanding the flows and stock dynamics of tellurium in the anthroposphere can inform environmental chemistry about current and future tellurium releases to the environment, and help to manage the element more wisely.
12
Jalkanen, H., H. Oghbasilasie, and K. Raipala. "Recycling of steelmaking dusts: The Radust concept." Journal of Mining and Metallurgy, Section B: Metallurgy 41, no. 1 (2005): 1–16. http://dx.doi.org/10.2298/jmmb0501001j.
Full textAbstract:
Recycling of dusts and other wastes of steelmaking is becoming to a necessity of two reasons: due to high contents of iron oxides dusts are valuable raw material for steelmaking and tightening environmental legislation makes the landfill disposal of wastes more expensive. Fine dust fractions from various stages of steelmaking route contain besides iron and carbon heavy metals especially zinc and lead and heavy hydrocarbons that are acceptable neither for landfill disposal nor for recycling back to processes without any spe4cial treatments. Some theoretical and practical aspects concerning high temperature treatments of steelmaking dusts for removal of hazardous components and production of clean high iron raw material for recycling is discussed in this paper. The Radust technology developed at Koverhar steelwork in Finland for treatment of the most problematic fine fractions of blast furnace and oxygen converter dusts is shortly presented and discussed.
13
Kurunov, I. F. "Environmental aspects of industrial technologies for recycling sludge and dust that contain iron and zinc." Metallurgist 55, no. 9-10 (January 2012): 634–39. http://dx.doi.org/10.1007/s11015-012-9479-x.
Full text
14
Álvarez, Christian A., José N. Carbajal, Luis F. Pineda-Martínez, José Tuxpan, and David E. Flores. "Dust Deposition on the Gulf of California Caused by Santa Ana Winds." Atmosphere 11, no. 3 (March 10, 2020): 275. http://dx.doi.org/10.3390/atmos11030275.
Full textAbstract:
Numerical simulations revealed a profound interaction between the severe dust storm of 2007 caused by Santa Ana winds and the Gulf of California. The weather research and forecasting model coupled with a chemistry module (WRF-CHEM) and the hybrid single-particle Lagrangian integrated trajectory model (HYSPLIT) allowed for the estimation of the meteorological and dynamic aspects of the event and the dust deposition on the surface waters of the Gulf of California caused by the erosion and entrainment of dust particles from the surrounding desert regions. The dust emission rates from three chosen areas (Altar desert, Sonora coast, and a region between these two zones) and their contribution to dust deposition over the Gulf of California were analyzed. The Altar Desert had the highest dust emission rates and the highest contribution to dust deposition over the Gulf of California, i.e., it has the most critical influence with 96,879 tons of emission and 43,539 tons of dust deposition in the gulf. An increase of chlorophyll-a concentrations is observed coinciding with areas of high dust deposition in the northern and western coast of the gulf. This kind of event could have a significant positive influence over the mineralization and productivity processes in the Gulf of California, despite the soil loss in the eroded regions.
15
Alderwish, Ahmed M., and Fayad A. Alderwish. "Environmental Aspects of the Accelerated Urbanization in Sana’a, Yemen." Sultan Qaboos University Journal for Science [SQUJS] 16 (December 1, 2011): 1. http://dx.doi.org/10.24200/squjs.vol16iss0pp1-12.
Full textAbstract:
From an environmental viewpoint, the prevailing health problems must be a “first priority” in all major development projects. Public water supply provides only 36% of domestic water. Disinfection of public water supply from the south well field is essential to avoid health problems. About 60% of the drinking water sold by ‘hygienic’ stations is of questionable quality. Expansion and upgrading in hospitals, pharmacies and industries (waste producers) will have an immediate impact on the amount of hazardous waste that will have to be disposed of. To achieve a sustainable urban development and to avoid environment/resources degradation, care should be taken now to monitor and improve handling and management of hazardous waste. Initiating management programs for reducing or preventing the generation of waste during production processes or other operations would be the first step to an economically and environmentally sound way of dealing with hazardous wastes. As complete elimination cannot be realized, ways to recycle the wastes should be sought. Major air pollutants in Sana’a include dust and SPM, carbon monoxide, photochemical oxidants, hydrogen sulfide and ammonia, sulfur oxides and hydrocarbons. The main sources of pollution in the cities are the mobile sources. The emissions of gases from oil consumption are exceeding the permissible level and it is essential that the gases be monitored, at least in the congested areas of the cities. Integration of environmental concerns with economic growth in Yemen should occur at the planning stage, adopting a positive approach and focusing on improvement in the health and welfare of the residents of the program area. Mitigating measures relating to the protection of the urban environment and improving public health must be primary objectives of EIA investigation for any upgrading project within urban areas and any other projects impacting on an urban environment.
16
Hagino, Masahiro, Takashi Inoue, Masanobu Mizoguchi, Wataru Aoki, and Fumiaki Matsumoto. "Dust Collection Validity and Effect of Hole Shape Accuracy of CFRP with Developed Hollow-Type Drill and Dust Collector." International Journal of Automation Technology 10, no. 3 (May 2, 2016): 324–33. http://dx.doi.org/10.20965/ijat.2016.p0324.
Full textAbstract:
The drilling of carbon fiber-reinforced plastic (CFRP) has many important aspects, such as collecting the fine cutting chips. Serious problems relating to machining accuracy can arise when the fine cutting chips diffused into the air are deposited or mixed in the sliding surface and spindle unit of a machine tool. Moreover, the environmental aspects of fine cutting chips can seriously affect the health and safety of workers. Our group has developed a new hollow-type drilling device with a cyclone-type dust collection system, which aspirates and ejects fine cutting chips from a penetration hole in the central part of the drill shank to outside the cutting area. We produced the tools with drills both without a point angle for the counter-boring hole processing and with a point angle for general drilling. In this study the effect of the dust collection rate for cutting chip and the drilling hole shape accuracy are evaluated for the hollow-type drill with two different cutting edge shapes. The results demonstrate the possibility of suppressing the occurrence of fine cutting chips when the hollow-type drill edge is similar to the shape of general twist drill edges. The hole-finish surface properties were improved, and we obtained a higher dust collection rate.
17
Su, Wei, Hong Zhi Ma, Yu Hui Ma, Qun Hui Wang, and Xing Yu Chen. "Environmental Evaluation for Three Typical Steel Pipe Production Processes Based on Energy Materials and Life Cycle Assessment." Advanced Materials Research 578 (October 2012): 25–29. http://dx.doi.org/10.4028/www.scientific.net/amr.578.25.
Full textAbstract:
Steel pipe applications are more widely used, but there are no comparative analysises about the environmental impact and energy consum of steel pipe and its production processes. This article investigated the environmental implications of three typical steel pipe production processes based on energy materials and life cycle assessment perspective. We modeled scenarios, calculated energy consumed and six aspects which classified as GWP, ODP, AP, EP, POCP and DUST. The rank of energy consumed in descending order is C-Pipe> H-Pipe> W-Pipe. Welded steel pipe is the best energy-friendly material in term of energy consumption. The rank of impact potential according to normalized results in descending order is GWP>AP>DUST>EP>POCP>ODP. The rank of impact potential according to weight factor in descending order is AP>DUST>GWP>ODP>EP>POCP. Acid Potential is the most significant factor. The weight factor of AP is almost twice as much as that of GWP. In environmental terms, the environmental depletion index of welded pipe production process is lowest with minimal environmental impact and the cold drawn pipe production process the highest with largest environmental impact. Welded steel pipe is the best environment-friendly material in term of environmental impact. Utilization of green energy and waste heat can effectively reduce the environmental implications for both hot rolling pipe and cold drawn pipe production processes.
18
Silins, Kaspars. "A Review on Suspended Wood Dust Combustion. Efficiency and Fuel Quality." Scientific Journal of Riga Technical University. Environmental and Climate Technologies 9, no. 1 (September 1, 2012): 28–34. http://dx.doi.org/10.2478/v10145-012-0014-x.
Full textAbstract:
Abstract The paper is dedicated to review the combustion efficiency in low capacity wood dust suspension burners. Fuel quality is reviewed as the main contributor to the combustion efficiency. Wood dust moisture content, particle size and shape, amount of volatiles are discussed as the main contributors. Some additional aspects like burner ignition, fuel and combustion air feeding are reviewed to increase the efficiency. A brief overview of particle combustion process is provided followed by an identification and discussion of combustion efficiency influencing parameters. The significance of fuel feeding and air supply is discussed at the end of the paper.
19
Kuzmichev, A. A., V. N. Azarov, and I. V. Stefanenko. "The Impact of Dust Particles on Cultural Heritage Objects in the Field of Environmental Mechanics." Applied Mechanics and Materials 878 (February 2018): 259–62. http://dx.doi.org/10.4028/www.scientific.net/amm.878.259.
Full textAbstract:
Nowadays due to the active step of urbanisation and rapid development of industry, the contamination of atmospheric air is one of the key aspects of environmental mechanics. Polluted air deteriorates the appearance of historical buildings and architectural monuments. With the help of modern methods, aimed at preservation of cultural heritage objects, it is possible to evaluate the impact of dusty air on the appearance of historical buildings in order to save them, because it is a demonstration of architectural and design features of various temporary periods.
20
Zamorska-Wojdyła, Dorota, Kazimierz Gaj, Anna Hołtra, and Magdalena Sitarska. "Quality Evaluation of Biogas and Selected Methods of its Analysis." Ecological Chemistry and Engineering S 19, no. 1 (January 1, 2012): 77–87. http://dx.doi.org/10.2478/v10216-011-0008-9.
Full textAbstract:
Quality Evaluation of Biogas and Selected Methods of its Analysis There were presented technological and ecological aspects of biogas quality evaluation and introduced an overview of the limits of its selected parameters. There were characterized analytical methods for determining the basic composition of biogas, hydrogen sulfide, ammonia, condensation, dust, oils, siloxanes, and aggregated content of sulfur, chlorine and fluorine. The result of comparative analysis and literature studies are proposes of the most adequate to the studies of biogas - analytical methodologies.
21
Cuce, Erdem, Pinar Mert Cuce, Shaik Saboor, Aritra Ghosh, and Yahya Sheikhnejad. "Floating PVs in Terms of Power Generation, Environmental Aspects, Market Potential, and Challenges." Sustainability 14, no. 5 (February 24, 2022): 2626. http://dx.doi.org/10.3390/su14052626.
Full textAbstract:
Limited reserves of fossil fuels, rising environmental concerns, and a remarkable increase in electricity demand have led to the necessity of harnessing solar energy on a large scale. For this purpose, there has been a noticeable stimulation into photovoltaic power plants (PVPPs) over the last three decades, but the land requirement for PVPPs is still a handicap in many countries since valuable lands are considered for other purposes such as agriculture and livestock. For effective conservation of valuable lands and water resources, PVPPs are preferred to be installed on various water bodies such as oceans, seas, lagoons, lakes, rivers, dams, canals, wastewater treatment plants, irrigation ponds, fish farms, wineries, reservoirs, etc. PV systems on water bodies are called floating PVPPs, and they have outstanding advantages compared with land-based PVPPs including better energy generation owing to passive cooling effects, higher system efficiency and reliability, and lower dirt and dust accumulation on PV modules thus lower operating costs. There are also some significant environmental features provided by floating PVs. Shading effects due to PV coverage reduce water losses arising from evaporation. Moreover, algae growth is limited because of mitigated solar radiation, which yields better water quality. This review presents more insight on floating PVPPs in terms of several aspects such as electricity generation, system efficiency, reliability and sustainability, experimental applications and facilities in operation, water and carbon saving as well as challenges.
22
Saputro, M. Rifki Andri, and Rasio Hepiyanto. "PENAMBAHAN SERBUK LIMBAH BATU KUMBUNG PADA CAMPURAN BETON." Jurnal CIVILA 3, no. 1 (May 15, 2018): 116. http://dx.doi.org/10.30736/cvl.v3i1.218.
Full textAbstract:
Concrete is the most common construction material in use and demand because it is an easily formed base material with a relatively cheap price compared to other construction. The utilization of waste powder of white brick on the concrete mixture is very useful in terms of environmental insight aspects can reduce pollution of dust in the area where the white brick is produced. In addition, the use of white brick powder can reduce environmental pollution because the dust is a solid material that is not easily soluble and not volatile. This research was done by mixing concrete and powder of white brick waste as cement added material with the composition of 5% and 10%. The highest value of compressive strength of concrete was obtained from the mixture composition of 5% addition of white brick waste which reached the value of 18,20 Mpa at age 28 day. While the mixture composition of 10% decreased the compressive strength of concrete by 16.07%.
23
Dikova, Lyudmila V., and Natalya S. Samarskaya. "Experimental studies of the properties of metal dust." SAFETY OF TECHNOGENIC AND NATURAL SYSTEMS, no. 3 (September 3, 2021): 47–54. http://dx.doi.org/10.23947/2541-9129-2021-3-47-54.
Full textAbstract:
Introduction. The issues of ensuring the environmental safety of metalworking industries are still very relevant. Moreover, the primary role in these issues is played by the protection of atmospheric air from the emissions of industrial enterprises in this industry. For the successful implementation of measures aimed at ensuring the environmental safety of atmospheric air, it is important to study in detail the composition and properties of the emission components.
Problem Statement. The aim of the study is to analyze the entire range of modern methods for measuring the parameters of the properties of metal dust, as the main component of emissions from metalworking industries; to select the method of experimental research; to conduct a dispersion analysis of metal dust particles.
Theoretical Part. As a rule, the productivity of experimental studies of the parameters of the properties of pollutants largely depends on the methods that were used in the performance of the work. To solve these problems, the authors have analyzed modern methods for measuring the parameters of the properties of metal dust. The choice is made according to the basic principles: relativity, relevance, completeness, labor intensity. The conditions for the final results of the research, their accuracy and reliability, the conditions for the terms, resources, technical means of research used, and the positive and negative aspects of each of the methods under consideration are also taken into account.
Conclusion. The article presents the result of the choice of the research method and the results of experimental studies of the properties of metal dust.
24
Zioło, Magdalena, Piotr Niedzielski, Ewa Kuzionko-Ochrymiuk, Jacek Marcinkiewicz, Katarzyna Łobacz, Krzysztof Dyl, and Renata Szanter. "E-Government Development in European Countries: Socio-Economic and Environmental Aspects." Energies 15, no. 23 (November 24, 2022): 8870. http://dx.doi.org/10.3390/en15238870.
Full textAbstract:
The purpose of the paper is to analyse the relationship between digitalisation of public services (e-government) and ESG factors (environmental, social and economic factors). As public administration is a major stakeholder influencing sustainable development and state governments are aiming to digitise their services, there is a need to better understand the effect of the digital revolution on ESG. This article aims to study the relationship between the E-Government Development Index (EGDI) and ESG factors in 26 European countries. The linear ordering method TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) was used for the study, followed by the Perkal index and the method of optimal predictors’ selection—the Hellwig method. The study is based on the Eurostat data (in the period 2003–2020), and the analysis includes ten variables: Share of environmental taxes in GDP; Exposure to dust air pollution; Greenhouse gas emissions by source sector—carbon dioxide, methane, nitrous oxide, etc. (energy, industry, agriculture, forestry, waste management) (thousands of tonnes); Passenger transport volume in relation to GDP; At risk of poverty or social exclusion; Percentage of people satisfied with their financial situation among people aged 16+; Share of the ICT sector in GDP; Unemployment rate of people aged 20–64; Research and development expenditure in all sectors; GDP per capita. The in-depth analysis offers a matrix that represents the relationships between environmental taxes and the development of e-government. The main finding reveals statistically significant relationships between the EGDI and aggregate variables representing the environmental, social and economic spheres. It indicates a genuine, positive impact of digitalised administrative processes on sustainable development. It also seems to confirm that investments in digital infrastructure and government e-services bring multiple long-term benefits and contribute directly to all three domains relevant to the sustainability of modern development. The results of the analysis can be found useful by governments and governmental institutions as informing digitalisation strategies aimed at balancing the development of e-services and their support infrastructure. Nowadays, when planning strategic actions, one should take into account the social, economic and environmental impact of the digitalisation processes.
25
Ciobanu, Cristian, Irina Aura Istrate, Paula Tudor, and Gheorghe Voicu. "Dust Emission Monitoring in Cement Plant Mills: A Case Study in Romania." International Journal of Environmental Research and Public Health 18, no. 17 (August 28, 2021): 9096. http://dx.doi.org/10.3390/ijerph18179096.
Full textAbstract:
This paper presents aspects of monitoring material dust emissions from stationary emission sources (monthly dust measurements performed on cement mill stacks—mill outlet and separator outlet). Additionally, the Portland cement mill technological process (its component parts), as well as the solutions regarding the reduction of the air emissions level, following the emission limit values (VLE), established in the integrated environmental authorization (AIM) from a cement factory in Romania, were analyzed. The paper focused on analyzing the data obtained in three different years for PM10 and dust concentrations (2018–2020). For each year, the measurements have been done in 3 months, each in a different season. The average values for each year for working conditions were: 30.22 mg/m3 (2018), 27.38 mg/m3 (2019), and 27.51 mg/m3 (2020) for working conditions and for normal conditions: 34.22 mg/m3 (2018), 30.49 mg/m3 (2019), and 30.16 mg/m3 (2020). For all 3 years, the values measured in spring were higher than the other two, both for work and normal conditions.
26
Jafari, Mostafa. "Challenges in Climate Change and Environmental Crisis." International Journal of Space Technology Management and Innovation 3, no. 2 (July 2013): 24–46. http://dx.doi.org/10.4018/ijstmi.2013070102.
Full textAbstract:
Climate change challenges need to be considered in various dimensions. Aviation industry has multiple impacts on human lives such as impacts on the urban and natural environments. Various dimensions of the issue and its importance have been reported by the IPCC, following a request from the ICAO and the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer in 1999. In this paper different related topics have been investigated. Aviation: Development and Improvement, Climate changes as main environmental crisis, causative source of pollutions: Air pollution (GHGs, aerosol, smoke and particulate, dust), water pollution, biodiversity, hazardous materials, and aeronautical noise. Link between aviation impacts and environmental crisis have been discussed. Different perspectives of the aviation challenge briefly are presented: I- Human dimension, II- Urban environment (local, regional, and global), III- Natural environments (terrestrial, aquatic, and atmospheric) and IV- Birds killed by intervention. In concluding remarks two aspects of the issue, A) benefits, and B) impacts have been considered, and in the end some recommendations have been made on Emissions Trading, Environmental Performance, and Technological Developments.
27
Valtere, Megija, Daina Kaleja, Edgars Kudurs, Antra Kalnbalkite, Viktorija Terjanika, Beate Zlaugotne, Jelena Pubule, and Dagnija Blumberga. "The Versatility of the Bioeconomy. Sustainability Aspects of the Use of Bran." Environmental and Climate Technologies 26, no. 1 (January 1, 2022): 658–69. http://dx.doi.org/10.2478/rtuect-2022-0050.
Full textAbstract:
Abstract As food consumption increases, so does the number of agricultural by-products. That is why it is necessary to find the best possible uses for them, operating by the principles of the bioeconomy. This work aims to gather information on the possibilities of using grain byproducts to develop new products and evaluate which bran products are the most suitable for commercialisation based on economic, environmental, social, and technical factors. Two methods were used in this work: literature review and multi-criteria decision analysis. As a result, 30 products were identified that could be made by using wheat bran, straw, husk, and dust. The products were divided into six groups – packaging materials, building materials, adsorbents, fuel, thermal insulation materials, and chemicals. In multi-criteria decision analysis, it was looked at seven bran products of which the best alternative for further commercialisation is mycelium-based biocomposite.
28
Parajuli, Sagar P., Georgiy L. Stenchikov, Alexander Ukhov, Illia Shevchenko, Oleg Dubovik, and Anton Lopatin. "Aerosol vertical distribution and interactions with land/sea breezes over the eastern coast of the Red Sea from lidar data and high-resolution WRF-Chem simulations." Atmospheric Chemistry and Physics 20, no. 24 (December 23, 2020): 16089–116. http://dx.doi.org/10.5194/acp-20-16089-2020.
Full textAbstract:
Abstract. With advances in modeling approaches and the application of satellite and ground-based data in dust-related research, our understanding of the dust cycle has significantly improved in recent decades. However, two aspects of the dust cycle, namely the vertical profiles and diurnal cycles, are not yet adequately understood, mainly due to the sparsity of direct observations. Measurements of backscattering caused by atmospheric aerosols have been ongoing since 2014 at the King Abdullah University of Science and Technology (KAUST) campus using a micro-pulse lidar (MPL) with a high temporal resolution. KAUST is located on the eastern coast of the Red Sea and currently hosts the only operating lidar system in the Arabian Peninsula. We use the data from the MPL together with other collocated observations and high-resolution simulations (with 1.33 km grid spacing) from the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem) to study the following three aspects of dust over the Red Sea coastal plains. Firstly, we compare the model-simulated surface winds, aerosol optical depth (AOD), and aerosol size distributions with observations and evaluate the model performance in representing a typical large-scale dust event over the study site. Secondly, we investigate the vertical profiles of aerosol extinction and concentration in terms of their seasonal and diurnal variability. Thirdly, we explore the interactions between dust aerosols and land/sea breezes, which are the most influential components of the local diurnal circulation in the region. The WRF-Chem model successfully reproduced the diurnal profile of surface wind speed, AOD, and dust size distributions over the study area compared to observations. The model also captured the onset, demise, and height of a large-scale dust event that occurred in 2015, as compared to the lidar data. The vertical profiles of aerosol extinction in different seasons were largely consistent between the MPL data and WRF-Chem simulations along with key observations and reanalyses used in this study. We found a substantial variation in the vertical profile of aerosols in different seasons and between daytime and nighttime, as revealed by the MPL data. The MPL data also identified a prominent dust layer at ∼5–7 km during the nighttime, which likely represents the long-range transported dust brought to the site by the easterly flow from remote inland deserts. The sea breeze circulation was much deeper (∼2 km) than the land breeze circulation (∼1 km), but both breeze systems prominently affected the distribution of dust aerosols over the study site. We observed that sea breezes push the dust aerosols upwards along the western slope of the Sarawat Mountains. These sea breezes eventually collide with the dust-laden northeasterly trade winds coming from nearby inland deserts, thus causing elevated dust maxima at a height of ∼1.5 km above sea level over the mountains. Moreover, the sea and land breezes intensify dust emissions from the coastal region during the daytime and nighttime, respectively. Our study, although focused on a particular region, has broader environmental implications as it highlights how aerosols and dust emissions from the coastal plains can affect the Red Sea climate and marine habitats.
29
Roy, Siuli, Anurag D, and Somprakash Bandyopadhyay. "Testbed Implementation of a Pollution Monitoring System Using Wireless Sensor Network for the Protection of Public Spaces." International Journal of Business Data Communications and Networking 5, no. 4 (October 2009): 16–32. http://dx.doi.org/10.4018/jbdcn.2009091702.
Full textAbstract:
Air pollution is an important environmental issue that has a direct effect on human health and ecological balance. Factories, power plants, vehicles, windblown dust and wildfires are some of the contributors of to pollution. Reasonable simulation tools exist for evaluating large scale sensor networks, ; however, they fail to capture significant details of node operation or practical aspects of wireless communication. Real life testbeds, capture the realism and bring out important aspects for further research. In this paper, we present an implementation of a wireless sensor network testbed for automatic and real-time monitoring of environmental pollution for the protection of public spaces. The paper describes the physical setup, the sensor node hardware and software architecture for “anytime, anywhere” monitoring and management of pollution data through a single, Web-based graphical user interface. The paper presents practical issues in the integration of sensors, actual power consumption rates and develops a practical hierarchical routing methodology.
30
Carpi, Anthony, Valentina Nikulina, Xuechen Li, and Cathy Spatz Widom. "Childhood maltreatment and lead levels in middle adulthood: A prospective examination of the roles of individual socio-economic and neighborhood characteristics." PLOS ONE 15, no. 11 (November 24, 2020): e0240683. http://dx.doi.org/10.1371/journal.pone.0240683.
Full textAbstract:
Background Lead is a common environmental hazard because of its past use as an additive to gasoline and household paint. Some evidence suggests that children with histories of child abuse and neglect are at elevated risk for residence in communities and households with less desirable characteristics and high levels of exposure to environmental hazards and toxins. Objectives To understand whether childhood maltreatment leads to higher levels of household dust lead and blood lead in adulthood and the extent to which characteristics of a person’s physical environment or individual level socio-economic status (SES) (based on unemployment, poverty, and receipt of public assistance) contribute to understanding the relationship. Methods A large prospective cohort design study in which abused and neglected children (ages 0–11) were matched with non-maltreated children and assessed in adulthood. Objective and subjective neighborhood characteristics were assessed at approximate age 40 and household dust lead (cleaned and less often cleaned) and blood lead levels were measured at age 41. Blood was collected through venipuncture by a registered nurse as part of a medical status exam. Results Childhood maltreatment predicted higher levels of dust lead in less often cleaned household places, residence in worse neighborhoods defined by objective (census tract data) and subjective (reports of physical disorder and lack of social cohesion and control), and higher levels of poverty, receiving public assistance, and unemployment. Only objective neighborhood characteristics mediated the relationship between childhood maltreatment and dust lead level in adulthood. There were also significant paths from objective neighborhood disadvantage and individual level SES to higher levels of blood lead. Discussion Thirty years after their childhood experiences, individuals with documented histories of childhood maltreatment are at higher risk for living in environments as adults with elevated lead levels that may impact other aspects of their lives and compromise their health.
31
Włodarczyk, Aneta, and Agata Mesjasz-Lech. "Ecological and Economic Context of Managing Enterprises That Are Particularly Harmful to the Environment and the Well-Being of Society." Energies 14, no. 10 (May 17, 2021): 2884. http://dx.doi.org/10.3390/en14102884.
Full textAbstract:
The ecological and economic context determine the management goals of a modern enterprise, which are in line with the growing concern about the well-being of society caused by the effects of enterprises’ activities that are particularly harmful to the environment. This increases the need to search for new tools that will have the capacity to generate information supporting the decision-making process in the area of enterprise management in terms of ecological, economic, and social goals. For these reasons, synthetic measures of development were constructed on the basis of the set of diagnostic variables describing various aspects of sustainable development in the case. Based on the environmental synthetic indicators, it has been possible to point out the Polish voivodeships, in which enterprises that are particularly harmful to the environment were able to reduce the emissions of dust and gaseous pollutants in the 2005–2019 period. These changes were often accompanied by an increase in the production of energy from renewable sources and increasing the supply of plants with devices to contain gaseous and dust pollutants. Moreover, the comparison of positioning the voivodeships in the rankings according to social, economic, and environmental synthetic measures shows that the reduction of the negative impact of energy-intensive enterprises on the environment has been associated with higher the position of the voivodeship in the ranking connected with the health of its inhabitants. It has been also seen that the largest pool of funds was allocated to the voivodeships that need them the most, as these voivodeships were low in the ranking with respect to the degree of the reduction of dust and gaseous emissions by enterprises that are particularly harmful to the environment. The results for regression analysis indicated at the existence of the inter-temporal relationships between the well-being of society and the environmental–economic effects of enterprises’ activities. It was noticed that increasing the possibilities of financing investments in low-emission development of the region, including the modernization of enterprises in terms of decreasing dust and gaseous pollutant emissions and reducing their energy consumption, has a significant impact on the improvement of well-being of society with a one-year lag. In contrast to other studies that mainly refer to the environmental and economic effects of managing enterprises that are particularly harmful to the environment, this paper focuses on the social aspect of the change in the health of the population connected with the emissions of pollutants. A novel approach based on the set of three multi-criteria synthetic measures is proposed to assess the environmental, economic, and social activities of enterprises in individual voivodeships in Poland in the long 2005–2019 period.
32
Shayakhmetov, Salim F., N. M. Meshchakova, L. G. Lisetskaya, A. V. Merinov, O. M. Zhurba, A. N. Alekseyenko, and V. S. Rukavishnikov. "HYGIENIC ASPECTS OF WORKING CONDITIONS IN THE MODERN PRODUCTION OF ALUMINUM." Hygiene and sanitation 97, no. 10 (October 15, 2018): 899–904. http://dx.doi.org/10.18821/0016-9900-2018-97-10-899-904.
Full textAbstract:
Introduction. The production of primary aluminum is one of the leading and belonging to the category of an increased health hazard for workers in the economy, which requires close attention to working conditions while modernizing production technology. Material and methods. The research methodology included a comprehensive study of working conditions and assessment of priority occupational risk factors, an in-depth study of the morphology, dispersed and component composition of dust and gas components air-suspended at different technologies of electrolysis of aluminum. Results. The leading production factors of occupational risk, degrees are fluorine-containing compounds, dust and gas-aerosol mixtures in the form of separate and assembled into agglomerates micro- and nanostructured particles of complex chemical composition (fluorine, carbon, aluminum, sodium, oxygen, silicon, iron, sulfur, chromium, nickel, etc.), unfavorable microclimate, electromagnetic field, noise, vibration, physical loads, which are related to the 3rd (harmful) class of 1 to 3 degree. Discussion. Modernization of aluminum production with the introduction of technology of pre-baked anodes allows significantly improve working conditions, reduce the admission of harmful chemical substances into the air of the working area, with the exception of hydrofluoride, the concentration of which exceeds extremely permissible levels in 1.5-3.1 times. Noteworthy is the fact of the detection of aerosols of disintegration and condensation, including particles of nanoscale range, impurities of heavy metals in the air. The consequences of the effect of such complex combination mixtures, their combined effects with other factors on the body, can have pronounced negative effects, which is important with adequate exposure analysis and personalized assessment of the health risks of workers engaged in the production of aluminum. Conclusion. Working conditions at workplaces with the technology of self-baking anodes are characterized by moderate or severe professional risk, with the technology of pre-baked anodes - mild or moderate risk, which makes the urgent problem of further improvement of aluminum production technologies, detailed analysis of personal exposures of harmful substances for a correct assessment of the health risk of workers, is relevant.
33
Lavygina, Olga L., and Igor G. Stepanov. "Study of the efficacy of methods for reducing dust formation on ash and slag dumps." Journal «Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost» 10, no. 4 (2020): 570–77. http://dx.doi.org/10.21285/2227-2917-2020-4-570-577.
Full textAbstract:
This research was aimed at analysing ash and slag dumps as objects of negative impact on atmospheric air, as well as at studying available methods for dust suppression. The existing ash and slag dump of the Novo-Irkutskaya combined heat and power plant, located in the forest park area between the cities of Irkutsk and Shelekhov, was considered. The territory adjacent to the ash dump is represented by forests in its south-eastern, eastern, and south-western parts, while the north-eastern part – by farmland. The operation of the ash and slag dump of the Novo-Irkutskaya thermal power plant leads to an increased level of atmospheric air pollution in the nearby residential area, which is situated outside the sanitary protection zone. This indicates the need to develop and implement measures to reduce dust formation from the surface of the ash and slag dump. In order to identify the most effective dust reduction method, it is important to calculate changes in emissions depending on the method used. To this end, we approximated the effective area of the dusting surface and the current ash particle outflow, which allowed determination of the surface concentrations of pollutants outside the ash dump area. Using a calculation method, we proved that the minimum rate of ash particle removal is observed when the water level in the nearby clarification pond is increased. It should be noted that, in addition to environmental aspects, economic factors should also be taken into account when developing environmental measures
34
Sattler, Theresa, Roland Pomberger, Julia Schimek, and Daniel Vollprecht. "MINERAL WOOL WASTE IN AUSTRIA, ASSOCIATED HEALTH ASPECTS AND RECYCLING OPTIONS." Volume 09 - March 2020, no. 9 (February 10, 2020): 174–80. http://dx.doi.org/10.31025/2611-4135/2020.13904.
Full textAbstract:
Mineral wool products are man-made vitreous fibres that are used as thermal and acoustic insulation materials and as substrates for horticulture. Mineral wool waste is generated from demolition activities by the building and construction industry. Unfavourable mechanical properties, such as low compressibility, elastic behaviour, high volume and low bulk density, cause problems in landfills when mineral wool waste is disposed of. Mineral wool waste with a certain content of carcinogenic fibres is classified as hazardous waste type 31437 g “Asbestos Waste, Asbestos Dust” in Austria, since some characteristics of such fibres are similar to those of asbestos fibres. An exception is those mineral wool materials that have been tested to be noncarcinogenic due to their characteristics of biological solubility or geometrical dimension. Such noncarcinogenic mineral wool waste is classified as non-hazardous waste type 31416 “Mineral fibres”. Generally, it can be assumed that most of the industrial producers of mineral wool in the EU have not been producing carcinogenic material since 1998; however, carcinogenic mineral wool material has not yet been banned in Austria. Therefore, a segregation between so-called “old” and “new” mineral wool material is not necessarily possible. The medical aspects of mineral wool products are still controversial. The International Agency for Research on Cancer (IARC) evaluated mineral wool (glass wool and rock wool) as “possibly carcinogenic” in 1988 but revised this evaluation to “inadequate evidence in humans for the carcinogenicity” in 2002. Fibrous dusts that reach the alveolar region of the lungs undergo a congruent or incongruent chemical dissolution process. Alveolar macrophages ingest the intruded fibres and fulfil anti-infection and clearance functions. Biosolubility is a key property of this process. The recycling of mineral wool waste has not yet been performed in Austria due to economic inefficiency, technical problems and suspected health issues. However, some recycling and processing options already exist; other options are investigated in the project RecyMin, which compares different concepts with respect to environmental and economic criteria.
35
Vlasov, Dmitry, Omar Ramírez, and Ashok Luhar. "Road Dust in Urban and Industrial Environments: Sources, Pollutants, Impacts, and Management." Atmosphere 13, no. 4 (April 10, 2022): 607. http://dx.doi.org/10.3390/atmos13040607.
Full textAbstract:
Road dust (RD) is one of the most important sources of particles in the atmosphere, especially in industrial areas and cities. In this special issue, we collected 16 original articles that describe field, experimental, and modeling studies related to RD and its various size fractions as a key issue in understanding the relationships between several urban and industrial environments and in the identification of pollution sources. Articles in the special issue focus primarily on the following main topics: (1) study of the chemical composition and speciation of RD and its source attribution; (2) assessment of RD and aerosol pollution levels (including express technique), environmental hazards and public health risks; (3) distribution of stable and radioactive isotopes in RD; (4) determination of factors affecting the level of dust accumulation on roads and the intensity of its pollution; and (5) study of the effect of RD on the atmosphere and other environments. Based on the results presented in this special issue, but not limited to, some of the current challenges in studying RD are formulated, including the need for further geographically wider and analytically deeper work on various aspects of the formation, transport pathways, and accumulation of RD in urban, industrial and other areas.
36
Sazhin, A. N. "REGIONAL ASPECTS OF DUST STORMS IN STEPPE REGIONS OF THE EAST EUROPEAN AND WEST SIBERIAN PLAINS." Soviet Geography 29, no. 10 (December 1988): 935–46. http://dx.doi.org/10.1080/00385417.1988.10640757.
Full text
37
Zhou, Yu-Wei, Kim-Chiu Chow, and Jing Xiao. "The Effect of Model Resolution on the Vertical and Temporal Variation in the Simulated Martian Climate." Atmosphere 13, no. 10 (October 21, 2022): 1736. http://dx.doi.org/10.3390/atmos13101736.
Full textAbstract:
To study the impact of model horizontal resolution on the simulated climate of Mars, we increased the model resolution of the Mars general circulation model MarsWRF from the commonly used 5° × 5° (standard resolution, SR) to 3° × 3° (high resolution, HR). We applied an interactive dust scheme to parameterize the dust-lifting process and investigated the effect of model resolution from three aspects: (1) temporal variation; (2) horizontal distribution; and (3) vertical distribution. From the results of the simulations, we obtained the following conclusions: (1) The seasonal variation in some zonal-mean fields such as the column optical depth and T15 temperature could be reasonably simulated in both the SR and HR simulations, and the results were similar. (2) The effect of resolution on the horizontal distribution of the climate fields was significant at some regions with complicated terrain. (3) The HR simulation could be different from the SR simulation in the vertical dynamic field and thermal field. To obtain more accurate simulation results, it is recommended to use a higher resolution simulation when the vertical distribution is a major concern in the study.
38
Zhou, Yu-Wei, Kim-Chiu Chow, and Jing Xiao. "The Effect of Model Resolution on the Vertical and Temporal Variation in the Simulated Martian Climate." Atmosphere 13, no. 10 (October 21, 2022): 1736. http://dx.doi.org/10.3390/atmos13101736.
Full textAbstract:
To study the impact of model horizontal resolution on the simulated climate of Mars, we increased the model resolution of the Mars general circulation model MarsWRF from the commonly used 5° × 5° (standard resolution, SR) to 3° × 3° (high resolution, HR). We applied an interactive dust scheme to parameterize the dust-lifting process and investigated the effect of model resolution from three aspects: (1) temporal variation; (2) horizontal distribution; and (3) vertical distribution. From the results of the simulations, we obtained the following conclusions: (1) The seasonal variation in some zonal-mean fields such as the column optical depth and T15 temperature could be reasonably simulated in both the SR and HR simulations, and the results were similar. (2) The effect of resolution on the horizontal distribution of the climate fields was significant at some regions with complicated terrain. (3) The HR simulation could be different from the SR simulation in the vertical dynamic field and thermal field. To obtain more accurate simulation results, it is recommended to use a higher resolution simulation when the vertical distribution is a major concern in the study.
39
Zhou, Yu-Wei, Kim-Chiu Chow, and Jing Xiao. "The Effect of Model Resolution on the Vertical and Temporal Variation in the Simulated Martian Climate." Atmosphere 13, no. 10 (October 21, 2022): 1736. http://dx.doi.org/10.3390/atmos13101736.
Full textAbstract:
To study the impact of model horizontal resolution on the simulated climate of Mars, we increased the model resolution of the Mars general circulation model MarsWRF from the commonly used 5° × 5° (standard resolution, SR) to 3° × 3° (high resolution, HR). We applied an interactive dust scheme to parameterize the dust-lifting process and investigated the effect of model resolution from three aspects: (1) temporal variation; (2) horizontal distribution; and (3) vertical distribution. From the results of the simulations, we obtained the following conclusions: (1) The seasonal variation in some zonal-mean fields such as the column optical depth and T15 temperature could be reasonably simulated in both the SR and HR simulations, and the results were similar. (2) The effect of resolution on the horizontal distribution of the climate fields was significant at some regions with complicated terrain. (3) The HR simulation could be different from the SR simulation in the vertical dynamic field and thermal field. To obtain more accurate simulation results, it is recommended to use a higher resolution simulation when the vertical distribution is a major concern in the study.
40
Zhou, Yu-Wei, Kim-Chiu Chow, and Jing Xiao. "The Effect of Model Resolution on the Vertical and Temporal Variation in the Simulated Martian Climate." Atmosphere 13, no. 10 (October 21, 2022): 1736. http://dx.doi.org/10.3390/atmos13101736.
Full textAbstract:
To study the impact of model horizontal resolution on the simulated climate of Mars, we increased the model resolution of the Mars general circulation model MarsWRF from the commonly used 5° × 5° (standard resolution, SR) to 3° × 3° (high resolution, HR). We applied an interactive dust scheme to parameterize the dust-lifting process and investigated the effect of model resolution from three aspects: (1) temporal variation; (2) horizontal distribution; and (3) vertical distribution. From the results of the simulations, we obtained the following conclusions: (1) The seasonal variation in some zonal-mean fields such as the column optical depth and T15 temperature could be reasonably simulated in both the SR and HR simulations, and the results were similar. (2) The effect of resolution on the horizontal distribution of the climate fields was significant at some regions with complicated terrain. (3) The HR simulation could be different from the SR simulation in the vertical dynamic field and thermal field. To obtain more accurate simulation results, it is recommended to use a higher resolution simulation when the vertical distribution is a major concern in the study.
41
Zhou, Yu-Wei, Kim-Chiu Chow, and Jing Xiao. "The Effect of Model Resolution on the Vertical and Temporal Variation in the Simulated Martian Climate." Atmosphere 13, no. 10 (October 21, 2022): 1736. http://dx.doi.org/10.3390/atmos13101736.
Full textAbstract:
To study the impact of model horizontal resolution on the simulated climate of Mars, we increased the model resolution of the Mars general circulation model MarsWRF from the commonly used 5° × 5° (standard resolution, SR) to 3° × 3° (high resolution, HR). We applied an interactive dust scheme to parameterize the dust-lifting process and investigated the effect of model resolution from three aspects: (1) temporal variation; (2) horizontal distribution; and (3) vertical distribution. From the results of the simulations, we obtained the following conclusions: (1) The seasonal variation in some zonal-mean fields such as the column optical depth and T15 temperature could be reasonably simulated in both the SR and HR simulations, and the results were similar. (2) The effect of resolution on the horizontal distribution of the climate fields was significant at some regions with complicated terrain. (3) The HR simulation could be different from the SR simulation in the vertical dynamic field and thermal field. To obtain more accurate simulation results, it is recommended to use a higher resolution simulation when the vertical distribution is a major concern in the study.
42
Zhou, Yu-Wei, Kim-Chiu Chow, and Jing Xiao. "The Effect of Model Resolution on the Vertical and Temporal Variation in the Simulated Martian Climate." Atmosphere 13, no. 10 (October 21, 2022): 1736. http://dx.doi.org/10.3390/atmos13101736.
Full textAbstract:
To study the impact of model horizontal resolution on the simulated climate of Mars, we increased the model resolution of the Mars general circulation model MarsWRF from the commonly used 5° × 5° (standard resolution, SR) to 3° × 3° (high resolution, HR). We applied an interactive dust scheme to parameterize the dust-lifting process and investigated the effect of model resolution from three aspects: (1) temporal variation; (2) horizontal distribution; and (3) vertical distribution. From the results of the simulations, we obtained the following conclusions: (1) The seasonal variation in some zonal-mean fields such as the column optical depth and T15 temperature could be reasonably simulated in both the SR and HR simulations, and the results were similar. (2) The effect of resolution on the horizontal distribution of the climate fields was significant at some regions with complicated terrain. (3) The HR simulation could be different from the SR simulation in the vertical dynamic field and thermal field. To obtain more accurate simulation results, it is recommended to use a higher resolution simulation when the vertical distribution is a major concern in the study.
43
Zhou, Yu-Wei, Kim-Chiu Chow, and Jing Xiao. "The Effect of Model Resolution on the Vertical and Temporal Variation in the Simulated Martian Climate." Atmosphere 13, no. 10 (October 21, 2022): 1736. http://dx.doi.org/10.3390/atmos13101736.
Full textAbstract:
To study the impact of model horizontal resolution on the simulated climate of Mars, we increased the model resolution of the Mars general circulation model MarsWRF from the commonly used 5° × 5° (standard resolution, SR) to 3° × 3° (high resolution, HR). We applied an interactive dust scheme to parameterize the dust-lifting process and investigated the effect of model resolution from three aspects: (1) temporal variation; (2) horizontal distribution; and (3) vertical distribution. From the results of the simulations, we obtained the following conclusions: (1) The seasonal variation in some zonal-mean fields such as the column optical depth and T15 temperature could be reasonably simulated in both the SR and HR simulations, and the results were similar. (2) The effect of resolution on the horizontal distribution of the climate fields was significant at some regions with complicated terrain. (3) The HR simulation could be different from the SR simulation in the vertical dynamic field and thermal field. To obtain more accurate simulation results, it is recommended to use a higher resolution simulation when the vertical distribution is a major concern in the study.
44
Chen, LuYang, and Ziao Chen. "Wilderness in Ancient Chinese Landscape Painting." Environmental Ethics 42, no. 3 (2020): 253–66. http://dx.doi.org/10.5840/enviroethics202042324.
Full textAbstract:
Chinese painting is dominated by landscape painting, which is a unique form of artistic expression for Chinese people, while landscape generally refers to nature. Wild natural landscape can be called “wilderness,” which embodies the vitality and upward vitality of nature, and also contains unique cultural characteristics. “Wilderness” is the most important “original ecological” environment in the natural environment. Its existence has natural, ecological, and aesthetic significance. It is nature in its primitiveness and ecology in its wildness; the aesthetic lives on in it. Compared with Western landscape painting, it pays particular attention to realism, good at depicting beautiful natural scenery and recording the reality of scenery. On the other hand, Chinese landscape painting pays more attention to the expression of connotation. Chinese landscape painting focuses on nature, takes meaning as its purpose and pursues culture. Chinese landscape painting is the outstanding expression of wilderness spirit, which is mainly manifested in three aspects: (1) Chinese landscape painting is of the same origin as “Tao” (道); (2) the “wilderness” in landscape painting has a strong vitality; (3) “wilderness” has a special cultural connotation. China’s wilderness is not ecological, but is vibrant; not in the dust, but out of the dust; not in nature, but in culture.
45
Sun, Chanjuan, Leyang Li, Shijie Hong, Chen Huang, Jingguang Li, and Zhijun Zou. "Prediction of household dust mite concentration based on machine learning algorithm." E3S Web of Conferences 356 (2022): 05057. http://dx.doi.org/10.1051/e3sconf/202235605057.
Full textAbstract:
Household dust mites (HDMs) are the important allergens causing allergic diseases in children. A predictive model can help us understand the concentration of HDMs in different areas of China to better prevent and control this kind of allergen. This study used 454 household inspection samples in childrens’ room obtained from China, Children, Homes, Health (CCHH) phase 2 study, conducted during 2013-2014. Spearman correlation and multiple logistic regression were used to explore the influencing factors of HDMs concentrations, by comprehensively considering residents’ lifestyle, building characteristics, environmental exposure, especially dampness-related exposures. This study used the Gradient Boosting Decision Tree(GBDT) algorithm to build the prediction model. The data from CCHH were used to established the prediction model. It was found that there were some differences in the influencing factors between two types of HDMs. The concentration of HDMs were found a significant correlation (p<0. 05)with the number of indoor moisture indicators. 17 influencing factors of HDMs concentrations from four aspects were finally established in this study. The training model of GBDT has a reasonable accuracy(R2>0. 9). This paper provides a reference for predicting the HDMs concentrations in children's bedrooms and the influence of the influencing factors.
46
Hardyanti, Nurandani, Matthew Darmawan, and Haryono Setiyo Huboyo. "Rancang Bangun Green Belt Untuk Pengendalian Pencemaran Debu di Kawasan Industri Terboyo (Jalan Kaligawe)." Jurnal Ilmu Lingkungan 19, no. 3 (October 21, 2021): 681–89. http://dx.doi.org/10.14710/jil.19.3.681-689.
Full textAbstract:
Pencemaran udara adalah masuknya atau bercampurnya unsur-unsur berbahaya ke atmosfer yang dapat menyebabkan kerusakan lingkungan, gangguan kesehatan manusia pada umumnya, dan penurunan kualitas lingkungan. Salah satu solusi untuk mengatasi masalah pencemaran udara adalah dengan merencanakan Green Belt. Green Belt atau Sabuk hijau adalah kawasan bebas bangunan atau ruang terbuka hijau di sekitar kawasan sumber pencemar yang berguna sebagai penyaring fisik pencemar udara serta aspek lain seperti estetika, fungsi peneduh dan penunjang keanekaragaman hayati. Oleh karena itu, perencanaan Green Belt menjadi penting sebagai aspek yang dapat mengendalikan tingkat pencemaran udara, khususnya pencemaran debu, pada lokasi perencanaan yang ditargetkan, khususnya Kawasan Industri Terboyo. Berdasarkan sampling yang dilakukan, angka konsentrasi debu menunjukkan angka yang cukup tinggi yaitu 801,6 mg/m3. Dengan desain Green Belt jenis pohon Acacia mampu menurunkan konsentrasi debu mulai dari efisiensi 15,84% pada tahun tanam dan meningkat pesat setiap tahunnya. Efisiensi optimal Green Belt akan tercapai pada tahun ke-2 dengan laju 71,40% dan akan mampu mencapai efisiensi maksimum pada tahun ke-5 dengan laju 87,92%. ABSTRACTAir pollution is the entry or mixing of hazardous elements into the atmosphere which can cause environmental damage, disturbances to human health in general and reduce environmental quality. One of the solutions to tackle air pollution problems is to plan a Green Belt. Green belt is a building-free zone or green open space around the pollutant source area which is useful as a physical filter for air pollutants as well as other aspects such as aesthetics, shading functions, and biodiversity support. Therefore, planning a Green Belt is important as an aspect that can control the level of air pollution, especially dust pollution, at the targeted planning location, especially Terboyo Industrial Area. Based on the sampling carried out, the dust concentration figure shows a high number, namely 801.6 mg / m3. With the Acacia tree species Green Belt design, it can reduce dust concentrations starting from an efficiency of 15.84% in the planting year and increasing rapidly each year. The optimum efficiency of the Green Belt will be achieved in the 2nd year with the rate of 71.40% and it will be able to reach the maximum efficiency in the 5th year with the rate of 87.92%.
47
Expósito, A., B. Markiv, L. Ruiz-Azcona, M. Santibáñez, and I. Fernández-Olmo. "Understanding how methodological aspects affect the release of trace metal(loid)s from urban dust in inhalation bioaccessibility tests." Chemosphere 267 (March 2021): 129181. http://dx.doi.org/10.1016/j.chemosphere.2020.129181.
Full text
48
Solouki, Abbas, Giovanni Viscomi, Riccardo Lamperti, and Piergiorgio Tataranni. "Quarry Waste as Precursors in Geopolymers for Civil Engineering Applications: A Decade in Review." Materials 13, no. 14 (July 15, 2020): 3146. http://dx.doi.org/10.3390/ma13143146.
Full textAbstract:
Carbon footprint reduction of paving materials could be explored through recycling mining by-products into different applications, which will preserve natural resources and decrease environmental issues. One possible approach is to reuse quarry dust and mining ore waste as precursors in geopolymer applications. geopolymers are mineral polymers rich in aluminosilicates with an amorphous to a semi-crystalline three-dimensional structure. The current review aims to summarize the studies conducted during the past decade on geopolymers containing quarry dust and mine tailings. The first section discusses various precursors used for geopolymer cement production such as metakaolin, ground granulated blast furnace slag (GGBFS), fly ash, and quarry/mining ore wastes including silt, tungsten, vanadium, copper, gold, zinc, marble, iron, basalt, and lithium. Different calcination treatments and curing conditions have been summarized. In some cases, the precursors are required to be calcined to increase their reactivity. Both ambient temperature and elevated temperature curing conditions have been summarized. Less attention has been paid to room temperature curing, which is necessary for field and industrial implementations. Engineering properties such as compressive strength, density, durability and acid resistance, water absorption and abrasion of geopolymers containing mining waste were reviewed. One of the main barriers preventing the widespread use of waste powders, in addition to economic aspects, in geopolymers could be due to their unstable chemical structure. This was shown through extensive leachate of Na+ or K+ cations in geopolymer structures. The review of over 100 articles indicated the need for further research on different aspects of quarry waste geopolymer productions before its full industrial implementation.
49
Zhao, Yanhua, Wei Meng, Peifu Wang, Dongqing Qian, Wei Cheng, and Zhongqing Jia. "Research Progress of Concrete 3D Printing Technology and Its Equipment System, Material, and Molding Defect Control." Journal of Engineering 2022 (September 20, 2022): 1–22. http://dx.doi.org/10.1155/2022/6882386.
Full textAbstract:
The traditional construction technology not only has environmental friendly problems such as noise and dust but also has resource-saving problems such as large template quantity and low construction accuracy. In addition, the traditional construction technology has an insurmountable technical bottleneck in the construction of special-shaped buildings. Building 3D printing technology can effectively overcome many problems existing in traditional construction technology and provide unlimited possibilities for the construction of special-shaped buildings. Concrete 3D printing technology is one of the most important technical categories of building 3D printing. In this study, the research status and progress of concrete 3D technology were reviewed from the aspects of equipment system, materials, defect control, and application scenarios. On this basis, the development foreground was prospected.
50
Su, Rong Jun. "Impact Evaluation on Air and Acoustic Environment of an Integrated Circuit Project." Applied Mechanics and Materials 209-211 (October 2012): 1541–44. http://dx.doi.org/10.4028/www.scientific.net/amm.209-211.1541.
Full textAbstract:
To assess environmental feasibility of integrated circuit industry and predict it’s influence on air and acoustic emvironment, the current situations and impact assesment on air and sound environment were done. Survey on air pollution sources indicated that smoke dust was the main exhaust pollutants accounting for 88.5% of the total and SO2 was the second. Current situation of monitoring shows that all measured items can satisfy the requirements of the standards except the daily average concentration of PM10. Gas pollutants in waste gases can be removed 85~ 95% after purified. Noises on proposed project area during night and day are all accord with the third or fourth class standards of 《Standard of Environmental Noise of Urban Area》. Noises in the project can meet level Ⅲ standards of 《Standard of Noise at Boundary of Industrial Enterprises》. So this project has little influence on surrounding air and sound environment. Therefore on the condition of adopting corresponding treatment measures, this project is feasible on aspects of air and sound environment.