Готові списки джерел за темами / Soil pollution Victoria Bendigo / Статті в журналах

Статті в журналах з теми "Soil pollution Victoria Bendigo"

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Soil pollution Victoria Bendigo.

Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся з топ-27 статей у журналах для дослідження на тему "Soil pollution Victoria Bendigo".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Переглядайте статті в журналах для різних дисциплін та оформлюйте правильно вашу бібліографію.

Lorimer, MS, and LA Douglas. "Effect of management practice on properties of a Victorian red-brown earth .1. Soil physical-properties." Soil Research 33, no. 5 (1995): 851. http://dx.doi.org/10.1071/sr9950851.

Повний текст джерела

Анотація:

The effects of five management practices (native forest, native pasture, Phalaris pasture, crop-pasture rotation, continuous cropping), that had been in place for 18 years, on some soil physical properties of a red-brown earth near Bendigo, Victoria, were studied. Particle size distribution, bulk density and hydraulic conductivity of soil in the A and B horizons at different, management sites were measured. Where cultivation had occurred, soil in the A horizon contained less silt and clay, and more fine sand and coarse sand. The bulk density of the A horizon of soil that had produced at least six wheat crops since 1969 was greater than that of soil used for pasture or forest, while the hydraulic conductivity of soil cropped every year since 1969 was much less than that of soil under native forest. Particle size distributions for soil from the B horizons at the five management sites were found to be similar. Where pastures and crops had been established, the hydraulic conductivity of the upper B horizon was lower, and the bulk density was higher, than that of soil in the native forest (Eucalyptus spp).

Стилі APA, Harvard, Vancouver, ISO та ін.

Prosser, IP, KJ Hailes, MD Melville, RP Avery, and CJ Slade. "A comparison of soil acidification and aluminum under Eucalyptus forest and unimproved pasture." Soil Research 31, no. 3 (1993): 245. http://dx.doi.org/10.1071/sr9930245.

Повний текст джерела

Анотація:

A comparison was made of pH (1:5, soil: 0.01 M CaCl2) and easily extractable forms of Al [0.01 M CaCl2 (Alca); 1 M KCl (AlK); and 0.05 M CuCl2 (AlCu)] between forest and pasture soils near Bendigo, Victoria. Perennial pasture growth is required in this region to reduce groundwater recharge as part of the management of dryland salinity, but pasture growth may be inhibited by Al and Mn toxicity as a consequence of soil acidification. Both forest and pasture soils were found to be acidic (mean pH of 4.0 and 4.3 respectively) and AlCa concentrations are sufficient to anticipate toxicity to sensitive species. The forest site was cleared of timber over 50 years ago, and has since acidified by 63 kmol H+ ha-1, which is accounted for by organic anion accumulation in the forest regrowth. The forest soil has lower concentrations of AlCa, for a given pH, and more Al complexed to organic matter (Alcu-AlK), even though forest and pasture soils have equal amounts of organic carbon. The different A1 concentrations in forest and pasture soils are accounted for by a lag in A1 response to acidification, and greater complexation of Al with organic matter in the forest soil.

Стилі APA, Harvard, Vancouver, ISO та ін.

Henry, Leonia, and Elijah Omutange. "Fractionation of Trace Metals between Catchment Soils and Associated Wetland Sediments of Selected Wetlands of Lake Victoria, East Africa." Journal of Wetlands Ecology 3 (February 11, 2010): 69–78. http://dx.doi.org/10.3126/jowe.v3i0.2222.

Повний текст джерела

Анотація:

The aim of this work was to study the trace metals transfer between soil aquifers and the immediate sediments of the selected wetlands of Lake Victoria. The study covered five trace metals Pb, Cd, Cu, Zn and Mn as these are associated with vehicular traffic and with the combustion of fossil fuels which could both be significant sources of pollution within the wetlands of Lake Victoria basin. Three types of trace metal analyses from various locations of Katonga, Simiyu and Nyando catchments of Lake Victoria were performed: total concentrations, the concentrations in the non-residual fraction and the concentration in the exchangeable fraction. The soil characteristics: texture, pH and organic matter contents, were studied in relation to Cation Exchange Capacity (CEC) to assess the rate of movement of the metals between the soil and the wetland sediments. Eventually, the potential retention and leaching capacity of trace metals within the catchment soils and its possible impact on the composition of the receiving sediments of the wetlands were studied. The comparison between Nyando and Simiyu wetlands showed high variations in the soil characteristics and hence in leaching capacity of the studied metals. In general most areas in Nyando wetland required some measures to improve the CEC of the soil for higher agricultural productivity. Key Words: Trace metals; fractionation; CEC; leaching capacity; soil properties DOI: 10.3126/jowe.v3i0.2222 Journal of Wetlands Ecology, (2009) Vol. 3, pp 68-76

Стилі APA, Harvard, Vancouver, ISO та ін.

Kelsall, Yasmin, Mayumi Allinson, Graeme Allinson, Nick Turoczy, Frank Stagnitti, Masataka Nishikawa, and Masatoshi Morita. "Leaching of copper, chromium and arsenic in a soil of south west Victoria, Australia." Toxicological & Environmental Chemistry 70, no. 3-4 (June 1999): 375–84. http://dx.doi.org/10.1080/02772249909358763.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Lytton-Hitchins, J. A., A. J. Koppi, and A. B. McBratney. "The soil condition of adjacent bio-dynamic and conventionally managed dairy pastures in Victoria, Australia." Soil Use and Management 10, no. 2 (June 1994): 79–87. http://dx.doi.org/10.1111/j.1475-2743.1994.tb00463.x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Schacht, Ulrike, and Charles Jenkins. "Soil gas monitoring of the Otway Project demonstration site in SE Victoria, Australia." International Journal of Greenhouse Gas Control 24 (May 2014): 14–29. http://dx.doi.org/10.1016/j.ijggc.2014.02.007.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Ouedraogo, Issoufou, Arthur Girard, Marnik Vanclooster, and François Jonard. "Modelling the Temporal Dynamics of Groundwater Pollution Risks at the African Scale." Water 12, no. 5 (May 15, 2020): 1406. http://dx.doi.org/10.3390/w12051406.

Повний текст джерела

Анотація:

Groundwater pollution risk modelling is an important asset to improve groundwater management and protection. In this study, we assess the temporal dynamics of groundwater pollution risk at the continental scale, using the DRASTIC model. The approach was developed using continental-scale data on soil properties, topography, land use, geology, hydrogeology, and climate with a resolution of 15 × 15 km2. We compared continental-scale groundwater pollution risk for the years 1990, 2000, and 2010. The results showed significant inter-annual variations of the spatial distribution of pollution risk. Changes were mainly concentrated in the area of the Nile Delta, around the Lake Victoria, in North Africa, and in coastal West Africa (predominately in Nigeria). We found that the increase in pollution risk was mainly related to the increase in the population density in these regions. The proposed methodology for modelling the temporal dynamics of groundwater pollution risk could support the monitoring of the Sustainable Development Goal 6, which focus in particular on the preservation of the freshwater resources against future threats.

Стилі APA, Harvard, Vancouver, ISO та ін.

Carter, M. R., J. O. Skjemstad, and R. J. MacEwan. "Comparison of structural stability, carbon fractions and chemistry of krasnozem soils from adjacent forest and pasture areas in south-western Victoria." Soil Research 40, no. 2 (2002): 283. http://dx.doi.org/10.1071/sr00106.

Повний текст джерела

Анотація:

Basalt-derived krasnozems are generally well-structured soils; however, there is a concern that intensive agricultural practices may result in an adverse decline in soil organic carbon, organic matter chemistry, and structural quality over time. A study was conducted on loam to silty clay loam krasnozems (Ferrosols) near Ballarat in south-western Victoria to assess changes in soil C, soil structural stability, and C chemistry, at the 0–10 cm soil depth, under 3 paired sites consisting of adjacent long-term forest (Monterey pine or eucalyptus) v. 30 year cropping [3 year pasture–2 year crops (potato and a root crop or grain)]. Soil structural stability was also characterised in the A and B horizons under long-term eucalyptus and several cropped sites. Organic C levels in the A horizons for all the soils were relatively high, ranging from 46 to 89 g/kg. A lower organic C (30&percnt;), associated mainly with loss of the sand-sized (>53 m) macro-C fraction, and a decrease in exchangeable Ca and Mg was found in the agricultural soils, compared with forest soils. Physically protected C in the <53 m fraction, as indicated by UV photo-oxidation, was similar among soils. Wet sieving indicated a decline of both C and N concentration in water-stable aggregates and the degree of macro-aggregation under agricultural soils, compared with the forest soils. However, soil structural changes under cropping were mainly related to a decline in the >5 mm sized aggregates, with no deleterious increase in the proportion of 0.10 mm aggregates. Solid state 13C NMR spectroscopy indicated a decrease in O-alkyl and alkyl C under pasture and cropping compared with forest soils, which was in agreement with the decline in the macro-C fraction. Characterisation of C chemistry following UV photo-oxidation showed that charcoal C (dominant presence of aryl C) accounted for 30&percnt; of the total soil organic C, while other functional groups (polysaccharides and alkyl C) were probably protected within micro-aggregates. Based on soil organic C and aggregate stability determinations alone, the implications for soil physical quality, soil loss, and diffuse pollution appear minimal. macroorganic carbon, soil aggregation, charcoal, photo-oxidation, potato rotation, CP/MAS 13C NMR spectroscopy.

Стилі APA, Harvard, Vancouver, ISO та ін.

Orata, Francis, Anke Maes, Friedrich Werres, and Rolf Dieter Wilken. "Perfluorinated Compounds Distribution and Source Identification in Sediments of Lake Victoria Gulf Basin." Soil and Sediment Contamination: An International Journal 20, no. 2 (February 28, 2011): 129–41. http://dx.doi.org/10.1080/15320383.2011.546442.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Simonit, Silvio, and Charles Perrings. "Indirect economic indicators in bio-economic fishery models: agricultural price indicators and fish stocks in Lake Victoria." ICES Journal of Marine Science 62, no. 3 (January 1, 2005): 483–92. http://dx.doi.org/10.1016/j.icesjms.2005.01.012.

Повний текст джерела

Анотація:

Abstract We consider the potential for using prices as leading indicators of changes in stocks and yields in the freshwater capture fishery in Lake Victoria. Fertilizer run-off from agricultural land is a major cause of nutrient loading, along with soil erosion, atmospheric deposition, and point pollution from industrial and domestic affluent. The interactions between fertilizer applications, water quality, fish stocks, and yields are modelled in order to predict the effect of changes in the price of fertilizers on the fishery. The fishery model includes a measure of Chl a concentration (a proxy for phytoplankton density). The consequences of changes in Chl a concentration for fish stocks are modelled using Ecopath. We show that fertilizer prices are effective leading indicators of changes in fish biomass and yield.

Стилі APA, Harvard, Vancouver, ISO та ін.

Bhanuprakash, M., and S. L. Belagali. "Study of Adsorption Phenomena by Using Almond Husk for Removal of Aqueous Dyes." Current World Environment 12, no. 1 (April 25, 2017): 80–88. http://dx.doi.org/10.12944/cwe.12.1.10.

Повний текст джерела

Анотація:

Among air and soil, water pollution is considered as an important one. Deterioration of water resources by the addition of various pollutants leads to the major threat to water quality and use of water for domestic purpose which leads to unaesthetic. For the plants, animals and human beings dyes are considered as most hazardous among various water pollutants. The present paper describes the adsorption behaviour of adsorbent almond husk with respect to dyes of Crystal violet, Bromocresol green, Pararosaniline and Victoria blue was investigated. The batch method was used and parameters like pH, adsorbent dosage, contact time and initial and final concentration of dyes were studied. Adsorbent used to be effective, with total removal of all dyes of 90%, with higher percentage removal from bromocresol green 97.5%, Crystal violet 96.9%, Pararosaniline 95.6% and Victoria blue 95%. Almond husk was an effective adsorbent with maximum percentage removal of 97.5% bromocresol green. Adsorbent was analysed by the instrument of scanning electron microscopy and Fourier infrared spectroscopy. In the present study almond husk almond husk was studied as a very good adsorbent for the removal of dyes from the aqueous media. Isotherm model of Langmuir, Freundlich and Dubinin-Radushkevich were considered to be favourable.

Стилі APA, Harvard, Vancouver, ISO та ін.

Abraham, Joji, Kim Dowling, and Singarayer Florentine. "Controlled burn and immediate mobilization of potentially toxic elements in soil, from a legacy mine site in Central Victoria, Australia." Science of The Total Environment 616-617 (March 2018): 1022–34. http://dx.doi.org/10.1016/j.scitotenv.2017.10.216.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Ueoka, Mayumi, Graeme Allinson, Yasmin Kelsall, Frank Stagnitti, Michelle Graymore, and Linda Evans. "Environmental fate of pesticides used in Australian viticulture ii: Behaviour of dithianon and vinclozolin in an acidic soil of the rutherglen region of Victoria, Australia." Toxicological & Environmental Chemistry 70, no. 3-4 (June 1999): 363–74. http://dx.doi.org/10.1080/02772249909358762.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Martel, Richard, Timothy James Robertson, Minh Quan Doan, Sonia Thiboutot, Guy Ampleman, Arthur Provatas, and Thomas Jenkins. "2,4,6-Trinitrotoluene in soil and groundwater under a waste lagoon at the former Explosives Factory Maribyrnong (EFM), Victoria, Australia." Environmental Geology 53, no. 6 (April 11, 2007): 1249–59. http://dx.doi.org/10.1007/s00254-007-0713-y.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Lawrence, Susan, James Grove, Peter Davies, Jodi Turnbull, Ian Rutherfurd, and Mark Macklin. "Historical dredge mining as a significant anthropomorphic agent in river systems: A case study from south-eastern Australia." Holocene 31, no. 7 (March 25, 2021): 1158–74. http://dx.doi.org/10.1177/09596836211003272.

Повний текст джерела

Анотація:

Bucket dredging to mine and extract gold and tin from rivers is a global industry that has had a range of negative effects on physical environments. These include the destruction of riparian soil profiles and structures, artificial channel straightening and loss of in-stream biodiversity. In this paper we evaluate the immediate effects and long-term consequences of bucket dredging on rivers in Victoria and New South Wales during the period 1900–1950. High quality historical sources on dredge mining are integrated with geospatial datasets, aerial imagery and geomorphological data to analyse the scale of the dredging industry, evidence for disturbance to river channels and floodplains and current land use in dredged areas. The study demonstrates that the environmental impact of dredging was altered but not reduced by anti-pollution regulations intended to control dredging. An assessment of river condition 70–100 years after dredge mining ceased indicates that floodplains and river channels continue to show the effects of dredging, including bank erosion, sediment slugs, compromised habitat and reduced agricultural productivity. These findings have significant implications for river and floodplain management.

Стилі APA, Harvard, Vancouver, ISO та ін.

White, S. "Speleogenesis in aeolian calcarenite: A case study in western Victoria." Environmental Geology 23, no. 4 (June 1994): 248–55. http://dx.doi.org/10.1007/bf00766739.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Makaka, R. R., Shepherd Misi, Mhosisi Masocha, and Richard Kimwaga. "Spatial and Temporal Variation of Selected Water Quality Parameters in the Tanzanian Side of Lake Victoria." Tanzania Journal of Engineering and Technology 40, no. 2 (February 20, 2022): 1–23. http://dx.doi.org/10.52339/tjet.v40i2.729.

Повний текст джерела

Анотація:

Lake Victoria’s water quality is increasingly becoming under heavy pressure mainly due to land based activities and aerial inputs which are taking place within the basin. This study was carried out to assess the spatial, including vertical and temporal, variation of the water quality of Lake Victoria on the Tanzanian side. Historical water quality data for the period from 2000 to 2016 was collected. Temperature, pH, Dissolved Oxygen (DO) and Turbidity were selected for study since they are the mostly measured and monitored water quality parameters. Land use-land cover changes were analysed using ArcGIS. ILWIS 3.7 software was used to classify the land use and land cover for the years 2000, 2010 and 2014. MERIS was used to analyse the spatial variation. One-way ANOVA was employed to test the significant variation between different parameters. The results showed that, for the pelagic zone, the range of temperature, pH, DO, and turbidity were 22.8 oC-28.68 oC, 6.3-10.52, 3.42-10.21 mg/l, 1.0 NTU-15.8 NTU respectively. The corresponding values for the littoral zones were 22.3 oC-26.8 oC, 6.47-10.16, 3.99-8.6 mg/l, 1.3-347 NTU respectively. The ANOVA analysis results show that there was a significant variation of NO3(p<0.01). Temperature, pH and DO decreased with the lake depth to the bottom for both zones. For the littoral zone, a strong correlation was observed between temperature and depth, temperature and DO, and between temperature and pH with R2=0.6, p<0.03, R2=-0.78, p<0.01 and R2=0.96, p<0.01, respectively. The bare soil, urban settlements and farm land increased by 38.9%, 8.4% and 10.7% respectively from the year 2000 to 2014 on the Tanzanian side. This could have led to water quality changes. Water quality parameters varied significantly between pelagic and littoral zones. Littoral zones are mostly polluted and thus should be the priority pollution control intervention areas.

Стилі APA, Harvard, Vancouver, ISO та ін.

Shugg, Andrew. "Hepburn Spa: cold carbonated mineral waters of Central Victoria, South Eastern Australia." Environmental Geology 58, no. 8 (November 7, 2008): 1663–73. http://dx.doi.org/10.1007/s00254-008-1610-8.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Balogh, Ioseph S., Vasil Andruch, Mihály Kádár, Ferenc Billes, József Posta, and Eva Szabová. "A simple method of boron determination in mineral waters using Victoria blue 4R." International Journal of Environmental Analytical Chemistry 89, no. 6 (May 15, 2009): 449–59. http://dx.doi.org/10.1080/03067310802710621.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Salisbury, C. D. C., A. C. E. Fesser, J. D. Macneil, J. R. Patterson, J. Z. Adamczewski, P. F. Flood, and A. Gunn. "Trace Metal and Pesticide Levels in Muskoxen from Victoria Island, Northwest Territories, Canada." International Journal of Environmental Analytical Chemistry 48, no. 3-4 (August 1992): 209–15. http://dx.doi.org/10.1080/03067319208027401.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Masso, Cargele, Fredrick Baijukya, Peter Ebanyat, Sifi Bouaziz, John Wendt, Mateete Bekunda, and Bernard Vanlauwe. "Dilemma of nitrogen management for future food security in sub-Saharan Africa – a review." Soil Research 55, no. 6 (2017): 425. http://dx.doi.org/10.1071/sr16332.

Повний текст джерела

Анотація:

Food security entails having sufficient, safe, and nutritious food to meet dietary needs. The need to optimise nitrogen (N) use for nutrition security while minimising environmental risks in sub-Saharan Africa (SSA) is overdue. Challenges related to managing N use in SSA can be associated with both insufficient use and excessive loss, and thus the continent must address the ‘too little’ and ‘too much’ paradox. Too little N is used in food production (80% of countries have N deficiencies), which has led to chronic food insecurity and malnutrition. Conversely, too much N load in water bodies due mainly to soil erosion, leaching, limited N recovery from wastewater, and atmospheric deposition contributes to eutrophication (152 Gg N year–1 in Lake Victoria, East Africa). Limited research has been conducted to improve N use for food production and adoption remains low, mainly because farming is generally practiced by resource-poor smallholder farmers. In addition, little has been done to effectively address the ‘too much’ issues, as a consequence of limited research capacity. This research gap must be addressed, and supportive policies operationalised, to maximise N benefits, while also minimising pollution. Innovation platforms involving key stakeholders are required to address N use efficiency along the food supply chain in SSA, as well as other world regions with similar challenges.

Стилі APA, Harvard, Vancouver, ISO та ін.

Uddameri, Venkatesh, and Tim Andruss. "A statistical power analysis approach to estimate groundwater-monitoring network size in Victoria County Groundwater Conservation District, Texas." Environmental Earth Sciences 71, no. 6 (November 8, 2013): 2605–15. http://dx.doi.org/10.1007/s12665-013-2901-2.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Ribbe, Nils, Kenneth Arinaitwe, Tallent Dadi, Kurt Friese, and Wolf von Tümpling. "Trace-element behaviour in sediments of Ugandan part of Lake Victoria: results from sequential extraction and chemometrical evaluation." Environmental Earth Sciences 80, no. 8 (April 2021). http://dx.doi.org/10.1007/s12665-021-09554-1.

Повний текст джерела

Анотація:

AbstractLake Victoria is the second largest freshwater lake and the largest tropical lake in the world. The transboundary lake has the fastest growing population in its catchment, which can impact the water and sediment quality. To determine the extent of anthropogenic effects on sediment quality in the Ugandan part of Lake Victoria, the contents and binding behaviour of trace elements were analysed, as well as organic matter and phosphorus in different sediment layers of both deep and coastal sediments near the coastal cities of Entebbe, Kampala and Jinja. The data were assessed using the German LAWA criteria for trace-element pollution, the Geo-Index, Cluster- and Factor analyses. Mostly, no critical trace-element contamination in the sediments of the investigated area was observed. However, changes in element distributions caused by anthropogenic influences from around the lake were detected, like higher contents of Cu, Ti and V in near shore sediments with urban surrounding. Near Jinja, industrial wastewaters caused particularly elevated contents of Cu in the sediments (70–121 mg/kg, 3.5–6 times the geogenic background), exceeding the LAWA criteria and potentially harming the aquatic habitat. In addition, temporally growing organic matter contents in the lake sediments near the estuary of River Nzoia (from 4.2 to 17.6% in around 60 years) due to increased soil erosion in the river’s catchment area and blooms of the water hyacinth became visible. This study demonstrates that the whole catchment area is responsible to ensure a healthy aquatic ecosystem in Lake Victoria.

Стилі APA, Harvard, Vancouver, ISO та ін.

Schofield, Robyn, Steven Utembe, Caitlin Gionfriddo, Michael Tate, David Krabbenhoft, Samuel Adeloju, Melita Keywood, Roger Dargaville, and Mike Sandiford. "Atmospheric mercury in the Latrobe Valley, Australia: Case study June 2013." Elementa: Science of the Anthropocene 9, no. 1 (2021). http://dx.doi.org/10.1525/elementa.2021.00072.

Повний текст джерела

Анотація:

Gaseous elemental mercury observations were conducted at Churchill, Victoria, in Australia from April to July, 2013, using a Tekran 2537 analyzer. A strong diurnal variation with daytime average values of 1.2–1.3 ng m–3 and nighttime average values of 1.6–1.8 ng m–3 was observed. These values are significantly higher than the Southern Hemisphere average of 0.85–1.05 ng m–3. Churchill is in the Latrobe Valley, approximately 150 km East of Melbourne, where approximately 80% of Victoria’s electricity is generated from low-rank brown coal from four major power stations: Loy Yang A, Loy Yang B, Hazelwood, and Yallourn. These aging generators do not have any sulfur, nitrogen oxide, or mercury air pollution controls. Mercury emitted in the 2015–2016 year in the Latrobe Valley is estimated to have had an externalized health cost of $AUD88 million. Air pollution mercury simulations were conducted using the Weather Research and Forecast model with Chemistry at 3 × 3 km resolution. Electrical power generation emissions were added using mercury emissions created from the National Energy Market’s 5-min energy distribution data. The strong diurnal cycle in the observed mercury was well simulated (R2 = .49 and P value = 0.00) when soil mercury emissions arising from several years of wet and dry deposition in a radius around the power generators was included in the model, as has been observed around aging lignite coal power generators elsewhere. These results indicate that long-term air and soil sampling in power generation regions, even after the closure of coal fired power stations, will have important implications to understanding the airborne mercury emissions sources.

Стилі APA, Harvard, Vancouver, ISO та ін.

Famuyiwa, Abimbola O., Yetunde A. Lanre-Iyanda, and Olabode Osifeso. "Impact of Land Use on Concentrations of Potentially Toxic Elements in Urban Soils of Lagos, Nigeria." Journal of Health and Pollution 8, no. 19 (September 1, 2018). http://dx.doi.org/10.5696/2156-9614-8.19.180904.

Повний текст джерела

Анотація:

Background. Among soil contaminants, potentially toxic elements (PTE) are of major significance because they are ubiquitous, toxic and persistent. Chronic exposure of humans to these elements has been linked with developmental delay, cancer, atherosclerosis and kidney damage, stomach ailments, respiratory problems, heart disease and cancer. Objectives. The present study aims to investigate current PTE concentrations in urban soils of Lagos, an example of a rapidly urbanizing megacity in a developing country. The variation in PTE (chromium (Cr), copper (Cu), iron (Fe), magnesium (Mn), nickel (Ni), lead (Pb) and zinc (Zn)) levels across different land use types was examined. Information from this study will be useful in the ranking of contaminated sites, environmental quality management, guidance for remediation, redevelopment of contaminated sites and will provide crucial information for general urban planning decisions. Methods. Five areas spread across four local government areas were selected, representing different socio-economic areas of Lagos (Victoria Island, Lagos mainland, Ikeja, Ifako-Ijaiye and Makoko). Sampling locations within the study areas were comprised of school playgrounds, roadsides, ornamental gardens, open spaces, train stations, industrial estates and dump sites. A total of 126 samples were collected. Results. The overall mean levels of PTE concentrations in this study were comparable to those found in large European cities where main pollution sources include traffic and current or former heavy manufacturing industries. Conclusions. Regulation and legislation on environmental issues, including effective solid waste management strategies and enforcement of emission standards should be emphasized in order to reduce the impact of PTE pollution on the inhabitants of urban areas in developing countries. Competing Interests. The authors declare no competing financial interests

Стилі APA, Harvard, Vancouver, ISO та ін.

Bobadilla-Soto, Encarnación Ernesto, Fernando Ochoa-Ambriz, and Mauricio Perea-Peña. "El sistema de producción maíz-ovinos de traspatio en los pueblos Mazahuas del Estado de México." REVISTA TERRA LATINOAMERICANA 40 (July 29, 2022). http://dx.doi.org/10.28940/terra.v40i0.945.

Повний текст джерела

Анотація:

El sistema de producción maíz-ovinos es una alternativa para los productores al mejorar los ingresos con venta de los ovinos, dándole valor agregado a la producción del maíz al alimentar a los ovinos con grano y rastrojo. El objetivo de este trabajo fue describir el sistema de producción maíz-ovinos de traspatio en municipios del Estado de México. El estudio se realizó en los municipios de Villa Victoria y San José del Rincón del nor-noreste del Estado de México; con productores que participaron en el Programa de Desarrollo Territorial (PRODETER) “Producción de ovinos sustentable”, el trabajo de campo fue de agosto del 2019 a marzo del 2020; el estudio fue de tipo exploratorio y descriptivo, fue obtenida la información a través de entrevistas, visitas a las unidades de producción y la aplicación de 87 cuestionarios. Para el análisis de la información se utilizó estadística descriptiva. Los resultados mostraron que: el 22% fueron mujeres encuestadas el 78% hombres, con una edad promedio de 47.1 años, en la producción de ovinos fue 19.5 años, quienes producen principalmente maíz criollo con rendimientos de dos toneladas por hectárea, mismo que utilizan para alimentar a la familia y a los ovinos principalmente en los meses de estiaje. El 95% de los productores pastorea los ovinos en promedio 4.4 horas al día. La venta de ovinos la hacen cuando existe una necesidad económica o cuando se requieren recursos para el ingreso de los hijos a la escuela o se considera para una f iesta familiar. El principal problema que los productores perciben en la producción de ovinos es la comercialización, porque se les paga barato por los corderos y borregos.

Стилі APA, Harvard, Vancouver, ISO та ін.

Gupta, Shaswat Vikram, and M. Ahmaruzzaman. "Development of efficient magnetic Fe2O3-activated Bakelite nanocomposite as an adsorbent for removal of Victoria blue dye from water." International Journal of Environmental Analytical Chemistry, January 11, 2021, 1–16. http://dx.doi.org/10.1080/03067319.2020.1843025.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!