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1
Wachs, Bodo. "Heavy metal content in Danubian fish." River Systems 11, no. 4 (April 13, 2000): 533–56. http://dx.doi.org/10.1127/lr/11/2000/533.
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MIELCZAREK, Marcin, and Kamil SZYDŁOWSKI. "THE HEAVY METAL CONTENT IN COMMERCIAL DOG FOODS." Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura, Alimentaria, Piscaria et Zootechnica 332, no. 41 (March 30, 2017): 29–36. http://dx.doi.org/10.21005/aapz2017.41.1.04.
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Widyasari, Ni Luh, I. Nyoman Rai, IGB Sila Dharma, and Made Sudiana Mahendra. "ANALISIS KANDUNGAN LOGAM BERAT Pb, Cu, Cd, Cr PADA TANAMAN PADI DAN JAGUNG YANG SISTEM PENGAIRANNYA BERASAL DARI SUNGAI BADUNG." ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) 17, no. 2 (November 23, 2023): 165. http://dx.doi.org/10.24843/ejes.2023.v17.i02.p01.
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This research aims at identifying the content of heavy metals, namely Pb, Cu, Cd, and Cr in the rice and corn cultivated on the agricultural land of Subak Kerdung, Pemogan Village, South Denpasar District. Rice and corn plants are suspected of having indications of heavy metals due to pollution of the downstream Badung River, which is used as irrigation in Subak Kerdung agricultural land. The analysis of heavy metal contents is conducted on the rice and corn plant organs samples, including roots, stems, leaves, and seeds. The test results show that the organs of rice and corn plants detect the contents of heavy metals Pb, Cu, Cd, and Cr which exceed quality standards. According to the results of analysis tests on organs of the rice plant, the content of heavy metal Pb is detected 21.95 mg/kg; heavy metal Cu 170.42 mg/kg; heavy metals Cd 0.35 mg/kg; and heavy metal Cr 7.03 mg/kg. Meanwhile, the results of analysis test on organs of the corn plant detect the content of heavy metal Pb 16.96 mg/kg; heavy metal Cu 58.16 mg/kg; heavy metal Cd 2.5 mg/kg; and heavy metal Cr 3.16 mg/kg. Therefore, it can be concluded that the content of heavy metals Pb, Cu, Cd, and Cr is more detected in the roots of rice and corn plants, also partially translocated to their stems, leaves, and seeds.
Keywords: heavy metals; rice plants; corn plants; Badung rivers
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NISHIOKA, Hiroshi, and Hirofumi KODERA. "Heavy metal content in fern plants." Journal of Environmental Conservation Engineering 34, no. 4 (2005): 301–5. http://dx.doi.org/10.5956/jriet.34.301.
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Raju, N. Janardhana, M. Kofod, M. Isenbeck‐Schröter, and G. Müller. "Heavy metal content of Indian cigarettes." Toxicological & Environmental Chemistry 72, no. 3-4 (October 1999): 215–19. http://dx.doi.org/10.1080/02772249909358838.
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Sapronova, V., R. Novitskyi, O. Kolomiitseva, and A. Buleyko. "Heavy metal contents in water, bottom sediments and fish of water bodies of different purposes in Dnipropetrovsk region." Ribogospodarsʹka nauka Ukraïni., no. 2(68) (June 28, 2024): 23–39. http://dx.doi.org/10.61976/fsu2024.02.023.
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Purpose. Assessment of the dynamics of heavy metal accumulation in water, bottom sediments, and fish of water bodies of different purposes in Dnipropetrovsk region. Methodology. The study on heavy metal contents in water, bottom sediments, and hydrobionts (fish) was conducted at various water bodies (Dnipro-Donbas hydraulic canal), fish ponds (ponds of PrJSC “AgroSoyuz”, PrJSC “Petrykivsky Rybhosp” and PE «Agrofirma «Nakhodka»), and multipurpose reservoirs (Dnipro reservoir, Sholokhivske reservoir) in Dnipropetrovsk region from 2015 to 2024. The determination of heavy metal concentrations (Pb, Cd, Mn, Cu, Fe, Ni, Zn) was carried out at the laboratory of the Research Center for Biosafety and Environmental Monitoring of Agricultural Resources of Dnipro State Agricultural and Economic University. The metal content was analyzed using atomic absorption spectrophotometry. The heavy metal contents were measured in four fish species (European perch, roach, Prussian carp, common carp). Sampling, data processing, and statistical analysis were conducted according to standard hydrochemical, hydrobiological, and ichthyological methods. The heavy metal contents were determined in fish muscles. Water quality was assessed according to general requirements and standards for fishery water bodies. Findings. The heavy metal contents in ecosystems of water bodies of different purposes was determined. In the sediment of ponds of PrJSC “AgroSoyuz” and PrJSC “Petrykivsky Rybhosp”, the heavy metal contents were significantly higher than in water or fish body: manganese within 41.24–68.43 mg/kg, cadmium – 0.32 mg/kg, lead 1.50–4.90 mg/kg (for ponds of PrJSC “AgroSoyuz”); manganese – 29.73 mg/kg, cadmium – 0.54 mg/kg, lead 5.72 mg/kg (for recreational pond of PrJSC “Petrykivsky Rybhosp”). For the water of these ponds, which is used for aquaculture, an excess of the content of some heavy metals – Mn, Zn, Cd - was recorded, and for the pond of PrJSC “AgroSoyuz” also Cu. Exceeding the normative heavy metal content for pond water of PE “Agrofirma “Nakhodka” was not noted. The content of some heavy metals in the water of the upper part of the Dnipro reservoir (Cu, Fe) did not meet the fishery norms. At the same time, the heavy metal contents in water and fish of these water bodies does not exceed the fishery standards for water used for fishery purposes. The heavy metal contents in the water of the upper part of the Dniprovske Reservoir (except for the Samara Bay) corresponded to fishery standards. The water in the Dnipro-Donbas hydrotechnical canal was characterized by high levels of heavy metals. Of the 6 investigated heavy metals, the maximum allowable concentrations were not exceeded only for lead (0.40 mg/dm3) The heavy metal contents in C. carpio muscles (juveniles and table fish) in different ponds of PrJSC “Petrykivskyi Rybhosp” (nursery and fattening) corresponded to fishery standards during the three years of the study (2011, 2015, 2016). In the Sholokhivske reservoir, the zinc content in C. gibelio muscles was 46.50 mg/kg, slightly exceeding the maximum allowable concentrations. Exceedances of copper and lead content were not noted. For fish from the Dnipro reservoir, the content of most heavy metals was elevated. In the meat of pelagic roach (R. rutilus), only copper content was within the normal limits (1.56 mg/kg), while all other 6 heavy metals exceeded the maximum allowable concentrations. In the meat of benthophagous Prussian carp (C. gibelio), elevated levels of accumulation of heavy metals were observed for manganese, iron, lead, and nickel, while zinc, copper, and cadmium content were within the standards. In the meat of European perch (P. fluviatilis), the highest content of heavy metals was observed for iron (80.54 mg/kg), with elevated levels observed for manganese, zinc, lead, and nickel. The obtained results indicate that the hydroecosystem of the Dniprovske reservoir, unlike other water bodies in the region, is significantly polluted with heavy metals. This is adequately reflected in the levels of heavy metal accumulation in the organisms of fish from different ecological groups - pelagic herbivores, benthophagous bottom-feeders, and predators. Originality. For the first time, the content of heavy metal accumulation in water, bottom sediments, and fish of water bodies of different purposes in Dnipropetrovsk region has been carried out over several years (2015–2024). Practical Value. The obtained results have theoretical and practical importance for the preparation of scientific-biological justifications for the fishery use of water bodies of various purposes in the region. Continuous monitoring of the heavy metal contents in hydrobionts is necessary to ensure food safety and the quality of raw materials and food fish products. Keywords: Dnipropetrovsk region, heavy metals, Dnipro Reservoir, Dnipro-Donbas Canal, ponds, Sholokhivske Reservoir, water, sediment, fish, accumulation of pollutants.
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Xu, Guo Wei, Xue Wu, Su Ling Huang, Xin Tian Yuan, Yang Gao, Yong Zhang, and Chuan Bin Dong. "Analysis of the Change of Heavy Metal Contents in Farmland in Mengcheng." Applied Mechanics and Materials 178-181 (May 2012): 773–76. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.773.
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In order to find out the variations of soil heavy metal contents in Mengcheng, the heavy metal of the soil was tested in the same way in 2010, based on the survey results of 2001. The results showed that the contents of the 8 kinds of heavy metal in Mengcheng County were lower than those of the national standard, but the heavy metal content of Mengcheng County in 2010 were significantly higher than those in 2001, especially Pb, and the content of Hg, Ni, As also increased greatly; The increased of changing rate of various heavy metals contents are in the following descending order: Pb> Hg> Ni> As> Cu> Cd> Cr> Zn. The uneven dispersion of various heavy metals element in different sections of Mengcheng County also increased.
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Huang, Sui Liang. "Adsorption of Cadmium Ions onto the Yellow River Sediment." Water Quality Research Journal 38, no. 2 (May 1, 2003): 413–32. http://dx.doi.org/10.2166/wqrj.2003.026.
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Abstract Adsorption of cadmium ions onto Yellow River sediment was studied in a batch reactor. Equilibrium adsorption of cadmium ions onto Yellow River sediment can be well described by the Langmuir adsorption isotherm. In view of common experimental conditions in the batch reactor, a set of equations for describing variations of both the dissolved heavy metal pollutant concentration and the particulate heavy metal pollutant concentrations (the adsorption content of heavy metal pollutant on unit weight of sediment) with time was formulated with the use of an adsorptive reaction kinetic equation of heavy metal pollutant, mass balance equation and corresponding initial conditions. Furthermore, formulae for calculating the equilibrium dissolved heavy metal concentration and the equilibrium particulate heavy metal concentration (the equilibrium adsorption content of heavy metal pollutant on unit weight of sediment) in the batch reactor were obtained. These can be used as tools for further study. It was found that the saturation adsorption content, b, constant of adsorption-desorption rate, k, and coefficient of adsorption rate, k1 (and coefficient of desorption rate k2), in the adsorptive reaction kinetic equation of the Langmuir type are independent of the suspended sediment concentration. Adsorption contents of heavy metal pollutants on unit weight of sediment (the suspended particulate heavy metal concentration) decreases with increasing suspended sediment concentration and can be well explained by the law of mass conservation. Adsorption capacity, which is defined as adsorption content of heavy metal pollutant by unit volume of (muddy) water, increases with an increase in either the suspended sediment concentration or initial dissolved heavy metal concentration.
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Mukherje, Dr Ashish, Dr Manvi Sharma, and Sh Anup Kumar Senapati. "A Study On Heavy Metal Content In Urad Dal Flour In India." International Journal of Research Publication and Reviews 5, no. 4 (April 11, 2024): 7159–62. http://dx.doi.org/10.55248/gengpi.5.0424.10103.
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Uhde, E., T. Salthammer, R. Marutzky, and M. Bahadir. "Heavy metal content of wooden furniture coatings." Toxicological & Environmental Chemistry 53, no. 1-4 (January 1996): 25–31. http://dx.doi.org/10.1080/02772249609358271.
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Tucker, P., P. Douglas, A. Durrant, and A. S. Hursthouse. "Heavy metal content of newspapers: longitudinal trends." Environmental Management and Health 11, no. 1 (March 2000): 47–66. http://dx.doi.org/10.1108/09566160010314189.
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Javorniczky, John S., Peter J. Newman, Douglas R. MacFarlane, David J. Booth, and Valentin Bogdanov. "High erbium content heavy metal fluoride glasses." Journal of Non-Crystalline Solids 184 (May 1995): 249–53. http://dx.doi.org/10.1016/0022-3093(94)00620-2.
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Zhao, Xiao Guang, Wen Yu Huang, and Le Yao. "Study on the Bioavailability of Soil Heavy Metal." Advanced Materials Research 610-613 (December 2012): 3085–90. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.3085.
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This paper analyzes the bioavailability of soil heavy metal with morphology, geochemical facies, activity coefficient, migration coefficient, metastasis coefficient of soil heavy metal in the Puyu village, Huayin city. The research results show that: firstly, physiochemical properties of soil (include moisture content, available P, available K, total N, soil texture and so on) are key influencing factors for heavy metal activity, and correlation between total content and various morphology content of heavy metal too; secondly, antagonism and synergism are discovered among various heavy metal; thirdly, the correlation between the total content of heavy metal and physiochemical properties of soil such as PH value, moisture content, available P, available K, total N, soil texture is significant.
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Liu, Wei, Qiang Yu, Teng Niu, Linzhe Yang, and Hongjun Liu. "Inversion of Soil Heavy Metal Content Based on Spectral Characteristics of Peach Trees." Forests 12, no. 9 (September 6, 2021): 1208. http://dx.doi.org/10.3390/f12091208.
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There exists serious heavy metal contamination of agricultural soils in China. It is not only time- and labor-intensive to monitor soil contamination, but it also has limited scope when using conventional chemical methods. However, the method of the heavy metal monitoring of soil based on vegetation hyperspectral technology can break through the vegetation barrier and obtain the heavy metal content quickly over large areas. This paper discusses a highly accurate method for predicting the soil heavy metal content using hyperspectral techniques. We collected leaf hyperspectral data outdoors, and also collected soil samples to obtain heavy metal content data using chemical analysis. The prediction model for heavy metal content was developed using a difference spectral index, which was not highly satisfactory. Subsequently, the five factors that have a strong influence on the content of heavy metals were analyzed to determine multiple regression models for the elements As, Pb, and Cd. The results showed that the multiple regression model could better estimate the heavy metal content with stable fitting that has high prediction accuracy compared with the linear model. The results of this research provide a scientific basis and technical support for the hyperspectral inversion of the soil heavy metal content.
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Mühlbachová, G., J. Száková, and P. Tlustoš. "The heavy metal availability in long-term polluted soils as affected by EDTA and alfalfa meal treatments." Plant, Soil and Environment 58, No. 12 (November 26, 2012): 551–56. http://dx.doi.org/10.17221/524/2012-pse.
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A 38-day incubation experiment was carried out in order to evaluate the response of plant-available portions of heavy metals in long-term contaminated arable and grassland soils on addition of ethylenediaminetetraacetic acid (EDTA) and alfalfa (Medicago sativa L.) meal. Soils with different soil management (arable and grassland) from the vicinity of a lead smelter were used in the experiment. Readily available heavy metal fractions of Cd, Pb, Zn and Cu increased in the presence of EDTA at the beginning of experiment. The increase of heavy metal availability was higher in the arable soil with lower content of soil organic carbon than in the grassland soil. Addition of EDTA increased content of K<sub>2</sub>SO<sub>4</sub>-extractable carbon which remained higher throughout the overall time of experiment. During the first part of the experiment, the alfalfa meal addition decreased the available metal concentrations in the EDTA-treated grassland soil whereas no effect of alfalfa meal was observed in EDTA-treated arable soil.
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Hou, Yong Xia, Yan Wang, Hui Yin Li, Xin Xin Li, and Xiao Jun Hu. "Accumulation and Distribution of Heavy Metals in Phragmites australis in the Wetland of Liaohe River Estuary." Advanced Materials Research 356-360 (October 2011): 994–97. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.994.
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Phytoextraction has been recognized as an alternative technique for the remediation of wetland contaminated by heavy metals. The objective of this paper is to investigate the characteristics of heavy metal phytoextaction by phragmites australis and the distribution in soils and phragmites australis of 13 sampling points distributed in fields of Zhaoquanhe, Yangjuanzi and Dongguo in Liaohe estuary.The results showed that the content of heavy metal of Cu and Zn is close in the three phragmites australis fields. The content of heavy metal of Pb in Dongguo field is higher than the others. The content of heavy metal of Cd is lowest for all the heavy metals in the three fields. For the content of heavy metal in different layer soils in the three phragmites australis fields, the content of heavy metal of Cu, Pb, Zn in soils of 0-10 cm, 10-20 cm is higher than in other layer soils. for Cd in soils of 0-30 cm is higher than in other layer soils. And the content of heavy metal in siols of 30-40 cm is lowest for all the heavy metals. The transfer and interaction of Cu, Zn, Cd and Pb in the soil- phragmites australis systems in the three fields is studied, the content of heavy metal of Cu, Zn, Cd is that soils>phragmites australis of aerial part>phragmites australis of underground part, and for the content of heavy metal of Pb, soils>phragmites australis of aerial part≈phragmites australis of underground part. The biological concentration factor of heavy metal of Cu, Zn, Cd is low and transfer coefficient is high relatively .
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Geng, Wenlong, Weihuan Li, Chunyan Yu, Lizi Zhao, Shuhao Zhang, Yuhui He, Lele Chen, Kuishen Li, Xiaozhi Zhao, and Xiaotong Guo. "Accumulation Characteristics of Heavy Metals in American Ginseng (Panax quinquefolium L.) and Changes in Their Contents after Soaking the Plants." Applied Sciences 13, no. 9 (May 5, 2023): 5676. http://dx.doi.org/10.3390/app13095676.
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Understanding the accumulation characteristics of heavy metals in the growth process of American ginseng can provide theoretical support for its safe production. In this study, the content of Cu, Mn, As, Pb, Cd, Cr, and Ni in American ginseng (annual, biennial, and triennial) and planting soil were determined using inductively coupled plasma mass spectrometry (LCP-MS). In addition, the change in the content of these heavy metals in American ginseng was evaluated after soaking the plant for various time periods. The results indicated that the content of some heavy metals in American ginseng was correlated with soil heavy metal contents. For example, Ni, Cd, and Mn content in American ginseng was significantly negatively correlated with Ni content in soil. American ginseng exhibited distinct heavy metal accumulation characteristics in different parts at different growth stages. For example, in annual American ginseng, Mn and As are mainly enriched in lateral roots and taproots, while in biennial and triennial American ginseng, they are mainly enriched in reed heads. When American ginseng plant was soaked for various time intervals, its heavy metal content changed to varying degrees. In general, after soaking American ginseng for 30 min, the content of most heavy metals decreased.
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Yang, Xiuyuan, Zhenming Zhang, Chao Sun, and Xianping Zeng. "Soil Heavy Metal Content and Enzyme Activity in Uncaria rhynchophylla-Producing Areas under Different Land Use Patterns." International Journal of Environmental Research and Public Health 19, no. 19 (September 27, 2022): 12220. http://dx.doi.org/10.3390/ijerph191912220.
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In this study, we investigated the content of soil heavy metals, the level of heavy metal pollution and the characteristics of soil enzyme activity under three different land use patterns of Uncaria rhynchophylla base, forestland and wasteland in Jianhe County, Qiandongnan Prefecture, Guizhou Province, revealing the intrinsic correlation between heavy metal content and soil enzyme activity to reveal the relationship between soil enzyme activity and heavy metal content under different land use patterns in the Uncaria rhynchophylla production area. The results showed that soil Cd and Hg contents in Uncaria rhynchophylla base both exceeded the national soil background value. The single pollution index indicated that Cd had the greatest contribution to Pn, and the comprehensive pollution index (Pn) demonstrated no heavy metal pollution in the soil of Uncaria rhynchophylla-producing areas. Under different land use patterns, the enzyme activity was forestland > wasteland > Uncaria rhynchophylla base, and catalase and acid phosphatase activities presented significant spatial differences (p < 0.05). The correlation between soil enzyme activity and heavy metal content was uncertain due to the changes in land use patterns and heavy metal species. The proportions of positive correlation and negative correlation between soil enzyme activity and heavy metals in Uncaria rhynchophylla base were 50%, respectively. In the forestland, soil enzyme activity was positively correlated with heavy metals, while in the wasteland, soil enzyme activity was negatively correlated with heavy metals. This study revealed that the changes in heavy metal content should be focused on for the soil quality in Uncaria rhynchophylla-producing areas under different land use patterns. The results of the study provide some basic theoretical references for the improvement of soil quality in the production area of Uncaria rhynchophylla under different land use practices.
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Zhao, Xiao Guang, Zhi Gui Huang, Yang Yang, and Le Yao. "Reconstructing the History of Heavy Metal Pollution by Tree-Ring." Advanced Materials Research 610-613 (December 2012): 1109–12. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.1109.
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This article is based on gold-mine. Analyzing the correlation of heavy metal content between tree rings and soil. Through the distribution of heavy metal content in the trees inverse the process of heavy metal pollution in soil. Discussing the time distribution of heavy metal pollution.
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Teristiandi, Novin. "Freshwater Molluscs as Bioindicator of Fe and Mn Contamination in Lematang River, South Sumatera, Indonesia." E3S Web of Conferences 68 (2018): 01016. http://dx.doi.org/10.1051/e3sconf/20186801016.
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Heavy metal in river come mainly from naturally occurring geochemical materials. However, human activities has enhanced concentration of heavy metal such as coal mine in the case of pollution in Lematang River. The high suspended solid loads in the river can remove most soluble metals from the water and trapped them in the bottom sediment. Freshwater molluscs were collected 3 sampling site, Lahat (ST1) as reference site, and polluted rivers of West Merapi (ST2) and East Merapi (ST2). Freshwater molluscs were analysed for the heavy metal contents in tissue. Relationships of the heavy metal in sediment to the heavy metal content in molluscs was performed using SPSS 24. Thiara scabra was the most abundant taxa in sampling area. Concentration of Fe and Mn in sediment has no significant effect on the Fe content in mollusc tissues. Molluscs appeared to more sensitive to higher Mn content. This study did not clearly show molluscs as a bioaccumulator for metal. Nonetheless, Thiara scabra were common, abundant, easily sampled and it is a useful choice as bioindicator in Lematang river for future study.
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Nie, Shunqi, Honghua Chen, Xinxin Sun, and Yunce An. "Spatial Distribution Prediction of Soil Heavy Metals Based on Random Forest Model." Sustainability 16, no. 11 (May 22, 2024): 4358. http://dx.doi.org/10.3390/su16114358.
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Mastering the spatial distribution of soil heavy metal content and evaluating the pollution status of soil heavy metals is of great significance for ensuring agricultural production and protecting human health. This study used a machine learning model to study the spatial distribution of soil heavy metal content in a coastal city in eastern China. Having obtained six soil heavy metal contents, including Cr, Cd, Pb, As, Hg, and Ni, environmental variables such as precipitation, soil moisture, and population density were selected. Random forest (RF) was used to model the spatial distribution of soil heavy metal content. The research findings indicate that the RF model demonstrates a robust predictive capability in discerning the spatial distribution of soil heavy metals, and environmental factor variables can explain 60%, 52.3%, 53.5%, 63.1%, 61.2%, and 51.2% of the heavy metal content of Cr, Cd, Pb, As, Hg, and Ni in soil, respectively. Among the chosen environmental variables, precipitation and population density exert notable influences on the predictive outcomes of the model. Specifically, precipitation exhibits the most substantial impact on Cr and Ni, whereas population density emerges as the primary determinant for Cd, Pb, As, and Hg. The RF prediction results show that Cr and Ni in the study area are less affected by human activities, while Cd, Pb, As, and Hg are more affected by human industrial and agricultural production. Research has shown that using RF models for predicting soil heavy metal distributions has certain significance.
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Li, Xiu Xia. "Spatial Distribution of Heavy Metal in Urban Soil of China." Advanced Materials Research 989-994 (July 2014): 454–57. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.454.
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There are significant regional differences of the heavy metals contents in urban soils in China. The heavy metals contents in urban soils of the eastern, central and western regions are quite different, and the pollution of capital cities and prefecture-level cities are different. The study about spatial variability, time differences, pollution levels and environmental risks of heavy metals from China's urban soil show that the heavy metal contents in Chinese cities are over the soil background value in China, especially the contents of Cd and Pb , which were 91.37 times and 41.91 times to the Chinese soil background value. And the content of Ni l is only 1.59 times to the Chinese soil background value.There are also obvious differences among different functional areas the city. Meanwhile, the metal content of urban soils change with the length of time of urban development. Nemero comprehensive pollution index of China's urban soil heavy metal was 45.404, which is heavily polluted. The potential ecological risk index of China's urban soil heavy metal is 71.56, which is high potential ecological risk. Different levels of urban pollution with development degrees cause the different environmental risks.
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Asrin Wibowo, Muhammad, Mijani Rahman, Idiannor Mahyudin, and Fatmawati Fatmawati. "ANALISIS LOGAM BERAT (Mn,Pb,Cu,Fe) PADA AIR DAN SEDIMEN DI PERAIRAN SUNGAI KUIN KOTA BANJARMASIN." EnviroScienteae 18, no. 2 (August 25, 2022): 100. http://dx.doi.org/10.20527/es.v18i2.14247.
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The Kuin River is a small river located in Banjarmasin, South Kalimantan. Various land use activities in the Kuin River area such as residential activities are thought to have affected the water quality of the Kuin River. This study aims to analyze the content of heavy metals (Pb, Cu, Fe, Mn) in water bodies and sediments in the waters of the Kuin River, Banjarmasin City. The research was conducted in River Kuin, District, Banjarmasin City, South Kalimantan Province. Determination of the research location in Table 1 uses the Purposive Sampling Method, which is a method of taking samples from a population. The location of observations was recorded using a Global Positioning System (GPS) tool. Based on the results of this study, the waters of the Kuin River Banjarmasin contained a heavy metal content of Manganese (Mn) obtained in water as much as <0.03 mg/L. The heavy metal content of Manganese (Mn) in the sediment is 5.6 - 19.8 mg/kg. Meanwhile, the heavy metal content of Lead (Pb) obtained in water was < 0.03 mg/L. The heavy metal content of Lead (Pb) in the sediment is 5.6 - 19.8 mg/kg. In addition, in the waters of the Kuin River Banjarmasin there is a heavy metal content of Copper (Cu) obtained in water as much as <0.03 mg/L. The heavy metal content of Copper (Cu) in the sediment is 5.6 - 19.8 mg/kg. Heavy metal Iron (Fe) obtained in water is < 0.03 mg/L. The heavy metal content of Iron (Fe) in the sediment is 5.6 - 19.8 mg/kg.
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Yu, Wen Jin, and Xin Qing Zou. "The Distributional Characteristics about Heavy Metal Pb, Cu, Zn, Cr of XINGYANGGANG Shoal-Sea." Advanced Materials Research 356-360 (October 2011): 2970–79. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.2970.
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The heavy metal Pb、Cu、Zn 、Cr content of surface samples and pillar samples in different geography of core sanctuary in XINYANGGANG tidal land were analyzed in this paper. The present pollution condition of heavy metal and heavy metal accumulation rule were studied by Index of geo-accumulation index, latent ecological risk index method and elements accumulation index method. The research suggested that 1、The heavy metal Pb、Cu、Zn 、Cr content trend in XINYANGGANG tidal land is basically the same and this tend do not change between before and after return a turn, but the undulate scope of heavy metal become narrow and The wave crest and trough of wave have a lagged trend. 2、After researching the heavy metal content of surface tidal land, you can find that change of heavy metal Pb、Cu、Zn、Cr are lower one by one in order from high tidal land to low tidal land, but the degree of this change is different. Change of Cu、Ni、Zn content are obvious, at the same time the change of Cr、Pb content are not obvious. 3、The heavy metal Pb、Cr content in XINYANGGANG tidal land express accumulated character, and Pb content of XINYANGGANG is 300% of that of Jiangsu province soil, whose EF is 3.774. All that suggest that XINYANGGANG tidal land have Pb pollution. 4、RI of XINYANGGANG is 23.552, this suggest that though XINYANGGANG tidal land have some heavy metal pollution and accumulation, there are no ecosystem danger, and The whole XINYANGGANG core area environment quality is good.
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Suwal, Anjana, Meera Prajapati, and Ram Charitra Shah. "Assessment of Toxic Heavy Metal Content in Children Toys." Khwopa Journal 5, no. 2 (December 29, 2023): 147–62. http://dx.doi.org/10.3126/kjour.v5i2.60448.
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The children toys are the most favorable things for children to play. But these children toys are not safe from toxic chemicals too. There is presence of different toxic heavy metals such as mercury, lead, barium, chromium, zinc etc. The standard value for different heavy metals is set up by the government of Nepal that came into effective from July 15, 2017. The standard was set up for the 12 toxic heavy metals as cadmium, chromium, lead, mercury, zinc, antimony, arsenic, barium, bisphenol A, bromine, selenium and phthalates. The study was focused on the study of the compliance of toxic heavy metals in children toys with the national standard. For the study total 52 toys were collected from different places of Nepal: Bhaktapur, Kathmandu, Lalitpur, Chitwan, Janakpur and Nepalgunj from the local vendors to the supermarkets. The toys were generally made up of plastic, rubber, metal, foam etc. After the collection and sampling of the toys they were tested in the lab of Nepal Handicraft Association of Nepal Bureau of Standard and Metrology (NBSM) by the X-Ray Fluorescence (XRF) technology. Among the 52 toys, no any heavy metals were detected in 15 toys and 37 toys were detected with multiple toxic heavy metals. The heavy metals detected in the toys were lead, cadmium, bromine, chromium, zinc and barium. Even most of the detected result is under the compliance it is very serious issue that the non-compliance result of heavy metals like lead is very much more (4688 ppm) than the standard value (90 ppm) in the toy: tortoise. In the same way, 22 children toys have the labelling and rest do not have the labelling. But the labelled children toys don’t have the labelling about the chemical safety. Though the national standard has been formulated the local or the parents themselves are unaware about the toxic heavy metals present in the toys. As well there has raised a big confusion in the standard of the toxic heavy metals as the new standard has been published omitting the standard of the heavy metals as phthalates, BPA, bromine and zinc. Thus, these points should be considered in order to implement the standard effectively and to save the children from the chemical hazards.
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Peng, Xi, Bin Quan Jiao, and Dong Wei Li. "Heavy Metal’s Potential Harm for Environment of Ancient Pyrometallurgical Slag." Advanced Materials Research 160-162 (November 2010): 130–34. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.130.
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The total content of heavy metal in solid waster is usually used to forecast heavy metal’s potential harm for environment.This work was to study the potential harm for environment of ancient pyrometallurgical slag.The heavy metal content in ancient pyrometallurgical slag is high and the average content of heavy metal (zinc plus plumbum) is up to 6.97%.But the leachable quantity of Zn,Pb,Cr and Cd are all very low.It shows that the total content of heavy metal could not represent the harm for environment. Meanwhile,leaching behavior of heavy metal in pyrometallurgical slag was discussed through extraction toxicity test in different pH. The results showed that in neutral condition,the leachable quantity of Zn,Pb,Cr and Cd is at the lowest level and their migration ability were weak.
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Bayoumi Hamuda, Hosam E. A. F. "Changing in organic carbon dynamics and biological activities in clay loam brown forest soil by application of municipal sewage sludge." Tájökológiai Lapok 12, no. 2 (December 30, 2014): 327–44. http://dx.doi.org/10.56617/tl.3718.
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A greenhouse pot experiment was conducted to assess the effects of two municipal sewage sludges (MSS) application on change in the dynamics of organic carbon, microbial population, enzymatic activities and alfalfa growth in relation to heavy metal content and nutrient release from sewage sludge in clay loam brown forest soil. The treatment of MSS increases soil organic matter and improves soil structure. Municipal sewage sludge of high heavy metal content (HHM) significantly decreased soil bioproductivity, reduced its biochemical properties, and lowered the microbial contents in comparison with MSS of low heavy metal (LHM) content. Total alfalfa dry matter yield and nitrogen content increases linearly with increasing MSS application rates. Soil treated with MSS rates of 40 and 60 % exhibit higher in crop dry matter, microbial contents and enzymatic activities than the control. Overall, our results demonstrate that soil treated with LHM content can improve soil quality and soil biological and biochemical properties.
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Rachmawati, Siti, Callista Fabiola Candraningtyas, Chandra Digta Hanggara Putra, Ririn Nur Fadhilah, Tsalatsun Ikhwa Muazulfa, Fathoni Firmansyah, and Iwan Suryadi. "Analysis of Lead (Pb) and Cadmium (Cd) heavy metals in cow’s milk in Central Java, Indonesia." IOP Conference Series: Earth and Environmental Science 1314, no. 1 (March 1, 2024): 012005. http://dx.doi.org/10.1088/1755-1315/1314/1/012005.
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Abstract The need for animal food is increasing because of its nutritional content. Foodstuffs needed to meet daily needs must be healthy and free from harmful substances, including heavy metals. Fresh cow’s milk is an animal-based food that is consumed by many people because it is very easy to find at an affordable price. This study aimed to determine the levels of heavy metals Pb (Lead) and Cd (Cadmium) contained in fresh cow’s milk and to find recommendations if they exceed a predetermined threshold. The method used is laboratory analysis of heavy metal content in fresh cow’s milk from a cattle farm in Boyolali Central Java. Analysis of Pb and Cd content was carried out by Atomic Absorption Spectroscopy (AAS). Data analysis was carried out by comparing the content of heavy metals in fresh cow’s milk with SNI 3141.1: 2011 concerning quality requirements for fresh cow’s milk and SNI 7387: 2009 concerning the maximum limit of heavy metal contamination in food. Laboratory test results on fresh cow’s milk had a heavy metal Pb content of 96.67 mg/kg and a heavy metal Cd content of 4.45 mg/kg. It is known that the maximum limit for heavy metal contamination in food is 0.02 mg/kg. It can be concluded that the heavy metal content in fresh cow’s milk has exceeded the existing quality standard threshold. Previous research revealed that the metal lead content in cow’s milk that has been processed is lower than in cow’s milk that has not been processed.
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Su, Yi, Bin Guo, Yongzhi Lei, Dingming Zhang, Xianan Guo, Liang Suo, Yonghua Zhao, and Yi Bian. "An Indirect Inversion Scheme for Retrieving Toxic Metal Concentrations Using Ground-Based Spectral Data in a Reclamation Coal Mine, China." Water 14, no. 18 (September 7, 2022): 2784. http://dx.doi.org/10.3390/w14182784.
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A reclamation coal mine in Baishui County of Shaanxi Province, China, was selected as the study area to develop a fast survey method for estimating soil heavy metal concentrations using spectral data. A portable object spectrometer manufactured by Analytical Spectral Devices (ASD) was used to measure soil spectral reflectance, and an X-ray fluorescence device was utilized to obtain the content of heavy metals. The Savitzky-Golay filter, first derivative reflectance (FDR), second derivative reflectance (SDR), continuum removal (CR), and continuous wavelet transform (CWT) were used to transform the original reflectance (OR) spectra for enhancing the spectral characteristics, respectively. Furthermore, correlation analysis was introduced to determine the characteristic bands and the correlations of heavy metals. Partial least squares regression (PLSR), extremely learning machine (ELM), random forest (RF), and support vector machine (SVM) were implemented for quantitatively determining relations between heavy metal contents and spectral reflectance. The outcomes demonstrated that the spectral transformation methods could effectively capture the characteristic bands and increase the relations between heavy metal contents and spectral reflectance. The relation between Fe and Ni was close with a relatively high correlation coefficient (r = 0.741). RF combined with CWT at the decomposition scales of 9 demonstrated the best performance with the highest Rv2 (0.71) and the lowest RMSEv (1019.1 mg/kg) for inferring Fe content. Ni content was inferred based on the close relationship between Fe and Ni. The result of RF was better than other methods with the highest Rv2 (0.69) and the lowest RMSEv (1.94 mg/kg) for estimating Ni concentration. Therefore, the RF model was chosen for mapping Fe and Ni contents in the study area. The present study revealed that the indirect inversion methods using spectral data can be effectively used to predict heavy metal concentrations. The outcomes supply a new perspective for retrieving heavy metal content based on hyperspectral remotely sensed technology.
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Angelova, Violina, and Krasimir Ivanov. "Heavy metal content in dandelion (TARAXACUM OFFICINALE WEB.)." Agricultural Sciences 10, no. 23 (2018): 55–61. http://dx.doi.org/10.22620/agrisci.2018.23.008.
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Genevini, P. L., F. Adani, D. Borio, and F. Tambone. "Heavy Metal Content in Selected European Commercial Composts." Compost Science & Utilization 5, no. 4 (September 1997): 31–39. http://dx.doi.org/10.1080/1065657x.1997.10701895.
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Onabanjo, O. O., C. O. Akinyemi, S. A. Sanni, and M. T. Kupoluyi. "Mineral and Heavy Metal Content of Nigerian Dishes." Journal of Culinary Science & Technology 7, no. 2-3 (November 30, 2009): 168–80. http://dx.doi.org/10.1080/15428050903313473.
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Saper, Robert B. "Heavy Metal Content of Ayurvedic Herbal Medicine Products." JAMA 292, no. 23 (December 15, 2004): 2868. http://dx.doi.org/10.1001/jama.292.23.2868.
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Ren, Shixin, Erling Li, Qingqing Deng, Haishan He, and Sijie Li. "Analysis of the Impact of Rural Households’ Behaviors on Heavy Metal Pollution of Arable Soil: Taking Lankao County as an Example." Sustainability 10, no. 12 (November 23, 2018): 4368. http://dx.doi.org/10.3390/su10124368.
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As heavy metal pollution of arable soil is a significant issue concerning the quality of agricultural products and human health, the rural households’ behaviors have a direct impact on heavy metal content in arable soil and its pollution level, but only a few researches have been done at such microscopic scale. Based on 101 field questionnaires of rural households in Lankao County and the monitoring data on heavy metal of arable soil of each rural household, the kind of rural households’ behaviors which impose obvious influence on heavy metal content of arable soil are investigated via single-factor pollution index, Nemerow pollution index and econometric model in this study. The results show that, rural households’ land utilization mode affects heavy metal content in soil, e.g., the degree of heavy metal pollution of soil for intensive planting is higher than that of traditional planting, viz. vegetable greenhouse > garlic land > traditional crop farmland. The management of cultivated land with due scale is beneficial to reducing heavy metal content in soil, that is, the land fragmentation degree is in direct proportion to heavy metal content in soil, so rural households are encouraged to carry out land circulation and combine the patch into a large one. Excess application of fertilizer, pesticide and organic fertilizer will lead to heavy metal pollution of soil, while agricultural technical training organized by government department and the foundation of agricultural cooperative can promote the technical level and degree of organization of rural households and enable them to be more scientific and rational in agrochemicals selection and application, hence reducing or avoiding heavy metal pollution of soil. Single factor pollution level of heavy metal in the soil for planting various crops is different, so it is recommended to prepare various pollution reduction programs for different land types and pollution levels for the harmony and unity of human-nature system.
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Liu, Zhenhua, Ying Lu, Yiping Peng, Li Zhao, Guangxing Wang, and Yueming Hu. "Estimation of Soil Heavy Metal Content Using Hyperspectral Data." Remote Sensing 11, no. 12 (June 20, 2019): 1464. http://dx.doi.org/10.3390/rs11121464.
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Quickly and efficiently monitoring soil heavy metal content is crucial for protecting the natural environment and for human health. Estimating heavy metal content in soils using hyperspectral data is a cost-efficient method but challenging due to the effects of complex landscapes and soil properties. One of the challenges is how to make a lab-derived model based on soil samples applicable to mapping the contents of heavy metals in soil using air-borne or space-borne hyperspectral imagery at a regional scale. For this purpose, our study proposed a novel method using hyperspectral data from soil samples and the HuanJing-1A (HJ-1A) HyperSpectral Imager (HSI). In this method, estimation models were first developed using optimal relevant spectral variables from dry soil spectral reflectance (DSSR) data and field observations of soil heavy metal content. The relationship of the ratio of DSSR to moisture soil spectral reflectance (MSSR) with soil moisture content was then derived, which built up the linkage of DSSR with MSSR and provided the potential of applying the models developed in the laboratory to map soil heavy metal content at a regional scale using hyperspectral imagery. The optimal relevant spectral variables were obtained by combining the Boruta algorithm with a stepwise regression and variance inflation factor. This method was developed, validated, and applied to estimate the content of heavy metals in soil (As, Cd, and Hg) in Guangdong, China, and the Conghua district of Guangzhou city. The results showed that based on the validation datasets, the content of Cd could be reliably estimated and mapped by the proposed method, with relative root mean square error (RMSE) values of 17.41% for the point measurements of soil samples from Guangdong province and 17.10% for the Conghua district at the regional scale, while the content of heavy metals As and Hg in soil were relatively difficult to predict with the relative RMSE values of 32.27% and 28.72% at the soil sample level and 51.55% and 36.34% at the regional scale. Moreover, the relationship of the DSSR/MSSR ratio with soil moisture content varied greatly before the wavelength of 1029 nm and became stable after that, which linked DSSR with MSSR and provided the possibility of applying the DSSR-based models to map the soil heavy metal content at the regional scale using the HJ-1A images. In addition, it was found that overall there were only a few soil samples with the content of heavy metals exceeding the health standards in Guangdong province, while in Conghua the seriously polluted areas were mainly distributed in the cities and croplands. This study implies that the new approach provides the potential to map the content of heavy metals in soil, but the estimation model of Cd was more accurate than those of As and Hg.
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Tamala, Desy, and Galuh Ratmana Hanum. "Analysis Of Lead (Pb) Heavy Metal Content In Smoking Farmers." Medicra (Journal of Medical Laboratory Science/Technology) 5, no. 2 (December 31, 2022): 115–18. http://dx.doi.org/10.21070/medicra.v5i2.1663.
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Farmers in the village of kedungrejo jombang in carrying out their activities some of them have a smoking habit where in cigarettes there are some heavy metal content such as lead (Pb). Lead (Pb) is a heavy metal that is toxic to human health. Lead can cause interference and damage to the kidney function system. The purpose of the study was to determine the relationship between lead heavy metals in the urine of actve and passive smokers in kedungrejo village. This research used the Atomic Absorption Spectrophotometer (AAS) method with 20 farmer urine samples. The results showed that lead heavy metal levels were below the threshold value of 0,15 mg/l. The results of Pearson correlation obtained p value = 0,021 ; r = 0,510. It can be concluded that there is a moderate relationship between heavy metals and urine of active and passive smokers of farmers.
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Yuliansari, Dini. "KANDUNGAN LOGAM BERAT TIMBAL (Pb) PADA BERAGAM JENIS BIVALVIA DI KAWASAN PANTAI KABUPATEN BANGKALAN." Bioscientist : Jurnal Ilmiah Biologi 8, no. 1 (November 18, 2020): 11. http://dx.doi.org/10.33394/bjib.v8i1.2666.
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Bivalvia is one of the organisms that is able to accumulate heavy metal content in the body. Lead heavy metal (Pb) is a heavy metal that is toxic if the level exceeds the safe limit that has been set both on the body of an organism or in humans. The purpose of this study was to determine the various types of bivalves found in Bangkalan Coastal Madura Island, and to analyze the content of lead heavy metals (Pb) in bivalve bodies found in the region. This research is observational. Sampling was carried out by hand sorting, then identified the type of bivalves that were obtained and then the samples were taken to the laboratory for testing using the Atomic Absorption Spectrophotometer (AAS). The results of the study are known that, the types of bivalves found and identified in the Bangkalan Coastal area of Madura Island are Bamboo Scallops (Solen sp.), Blood Scallops (Anadara granosa), Sweet Scallops (Meretrix meretrix), and Stone Scallops (Placamen isabellina). Laboratory test results of lead heavy metal content (Pb), it is known that each clam accumulates lead heavy metal (Pb) with different amounts of concentration, wherein the heavy metal content of lead (Pb) in Bamboo / Lorry Shells (0.168-0.208 ppm) , Blood Shells (0.152-0.231 ppm), Sweet Shells (0.161-0.288), and Stone Shells (0.143-0.169 ppm), and it is known that the heavy metal content of lead (Pb) of the four bivalves is still below the threshold level of metal contamination according to Kep. Ditjen POM No. 03725/B/SK/VII/1989 which determines that the maximum limit of lead (Pb) heavy metal content in marine organisms is 2 ppm.
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A. A. Istri Mirah Dharmadewi. "Analysis of Leading Metal (Pb) and Cadmium (Cd) Content Green Shells (perna viridis L.) in the Kreneng Market." Journal of Sustainable Development Science 2, no. 2 (December 1, 2020): 40–45. http://dx.doi.org/10.46650/jsds.2.2.1008.40-45.
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This research was conducted to determine the content of heavy metals lead (Pb) and Cadmium (Cd) in green shells circulating in the kreneng market. Samples of green shells were taken from the kreneng market, Bali. Then analysis of the content of lead (Pb) and Cadmium (Cd) in the Analytical Laboratory of Udayana University. Samples of green mussels (Perna viridis L.) Were opened from the shell to take the meat. Furthermore, the sample is mashed by chopping and pounding and put into erlenmeyer. Each sample was given 3 repetitions using the factorial pattern RAL. Then with a wet ashing process (wet destruction). The results showed that the heavy metal content of lead and cadmium in green mussels (Perna viridis L.) Exceeded the maximum limit of heavy metal contamination. The heavy metal content of lead (Pb) shellfish taken at the Kreneng Market is 29.595 mg / kg while the heavy metal content of cadmium (Cd) taken at the Kreneng market is 3.41 mg / kg the result of the heavy metal content analyzed exceeds the predetermined by the Food and Drug Supervisory Agency (BPOM).
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Hindarwati, Yulis, Tri Retnaningsih Soeprobowati, and Sudarno. "Heavy Metal Content in Terraced Rice Fields at Sruwen Tengaran Semarang - Indonesia." E3S Web of Conferences 31 (2018): 03009. http://dx.doi.org/10.1051/e3sconf/20183103009.
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The presence of heavy metal on agricultural soils can be caused not only natural factors but also due to human intervention. Differences in management and lack of understanding of farmers in the production input of fertilizers and pesticides ensued in land ravaged. Periodic testing of paddy fields is necessary to minimize the contaminants from being absorbed by plants that will have an impact on health decline. The purpose of the assessment was to identify the heavy metal content in the terraced rice field in Sruwen Village, Tengaran District, Semarang Regency. Survey was conducted in February 2017. Sampling on terraced rice fields of different heights consisted of upper, middle, and upper down. Taken as many as eight single points and composed at a depth of 0-20 cm and 20-40 cm. The identification results showed that heavy metal content of Pb, Cd, and Cu were present at all altitudes. Heavy Metals Pb and Cd at a depth of 0-20 cm were higher from 20-40 cm in the upper and lower rice fields but lower in the middle rice field. Cu heavy metal at a depth of 0-20 cm was higher than 20-40 cm in all altitude land. The heavy metal content of Pb, Cd, and Cu was still below the heavy metal standard set by the European Union and India.
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Manea, Alexandrina, Nicoleta Vrinceanu, Carmen-Alina Eftene, and Daniela Raducu. "The Heavy Metal Status of Some Agricultural Soils." Revista de Chimie 71, no. 12 (January 7, 2021): 10–17. http://dx.doi.org/10.37358/rc.20.12.8382.
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In order to evaluate the loadings of some agricultural soils with heavy metals, field studies were made across the Iasi County. The heavy metals concentration range were as follows: 15.4 - 36 mg/kg (Cu), 49 - 115 mg/kg (Zn), 7.4 - 20.4 mg/kg (Pb), 0.13 - 0.43 mg/kg (Cd), 6.9 - 13.15 mg/kg (Co), 25 - 100 mg/kg (Ni) and 463 - 798 mg/kg (Mn), respectively. The median of the heavy metals decreased in the next order: Mn (589) ] Zn (67) ] Ni (46) ]Cu (22,1)]Pb (12.1)]Co (10.2)]Cd (0.32). The studied heavy metal median was higher than the same metal median from European soils. According to the Romanian legislation, the normal values are exceeding in 13% the samples for Zn, 73% for Cu, 93% for Ni, and in one case, the value of Ni exceeded the alert threshold (75 mg/kg). A direct relationship between Cu, Pb, Zn and Co was noticed, which may indicate a common source of these metals. The Pearson`s coefficients of these elements were: Pb-Cu (0.863), Cu-Zn (0.826), Pb-Zn (0.74), Cu-Co (0.730), Pb-Co (0.703). According to the values of Pearson correlation coefficient, the significant positive correlations were identified between Cu, Zn, Pb, Co and clay content, while the same metals are highly negative correlated with CaCO3 and fine sand contents. In case of Pb, Co, and Mn no influence of agricultural activities can be detected, wich suggestes that geogenic factors control the contents of these heavy metals. The Cu content exhibited a positive correlation with total Nitrogen, while the Cd content showed a positive significant relationship only with Km content. On the other hand, the Ni content exhibited correlation with both Pm and Km concentrations. The correlations of Cu-Nt, Cd-Km, Ni-Pm, and Ni-Km could be an index of the anthropogenic input of Cd, Cu, and Ni from the use of fertilizers.
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Maletin, S., N. Djukic, S. Obradovic, A. Ivanc, B. Miljanovic, V. Pujin, and S. Zhenjun. "Heavy metal content of fish communities inhabiting the Yugoslav section of the River Danube." River Systems 10, no. 1-4 (September 18, 1996): 535–40. http://dx.doi.org/10.1127/lr/10/1996/535.
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Muhammad, Muhammad, Shelly Anggi Pratiwi, Thaib Rizwan, and Zulkarnain Jalil. "Heavy metal content in pumpkin pond of Kutaraja Fishing Port Banda Aceh." Depik 10, no. 2 (June 15, 2021): 136–42. http://dx.doi.org/10.13170/depik.10.2.20943.
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Fishing port scan support fishery resources management by incorporating social-economic activities to improve the local community's welfare; however, it can also negatively impact the environment by increasing waste pollution to the surrounding waters. Kutaraja Fishing Port, Banda Aceh, is one of the active fishing ports that conduct multiple activities, such as industrials, transportations, and domestic activities threatening the environment through the production of pollution such as heavy metals. The purpose of this study is to determine the concentration of heavy metals Zinc (Zn) and Chromium (Cr) and the sediment contamination level in the Kutaraja Fishing Port, Banda Aceh. This research was conducted in February 2021 at the water site of Samudra Kutaraja Fishing Port, Banda Aceh, and sampled sediments using the purposive sampling method. Samples were then analyzed for heavy metal concentration using the Atomic Absorption Spectrophotometer (AAS) instrument in the laboratory of the Aceh Industrial Research and Standardization Center (BARISTAND). The results showed that the concentration of heavy metal Zn ranged from 15.6507 - 27.2939 mg/kg. The majority of heavy metal Cr concentrations were below the test limit of 0.000, except at station 2, which was 9.1212. Both heavy metal concentrations are still categorized as low contamination criteria and still below the Australian and New Zealand Environment and Conservation Council (ANZECC, 2000) and the Canadian Council of Ministers for the Environment (CCME, 2002). This research proved that both heavy metals do not threaten the biota and have a low contamination level in the waters.Keywords:SedimentHeavy metal (Zn)Heavy metal (Cr)Atomic-absorptionSpectro-photometerAssessment
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KROEKSAKUL, PATARAPONG. "THE HEAVY METAL CONSTITUENTS AND COMPOSITION OF THE SOIL AND MUSHROOMS COLLECTED FROM THE NONG-AUNG PUBLIC FOREST." JOURNAL OF SUSTAINABILITY SCIENCE AND MANAGEMENT 18, no. 10 (October 31, 2023): 49–69. http://dx.doi.org/10.46754/jssm.2023.10.004.
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This paper presents the findings of a study conducted to assess the conditions and heavy metal contents of the soil in areas of the Nong-Aung public forest. This study investigates the relationship between the heavy metal contents in soil and the accumulation of heavy metals in naturally occurring mushrooms within the public forest, comparing the components of a waste disposal zone and a general disposal zone. This study employs one-way analysis of variance to analyse variances between groups, with data differences compared using the least significant difference method. The research reveals significant differences (p < 0.05) in the heavy metal contaminants present in soil between the waste disposal zone and the general zone in the public forest. Human activities are found to influence soil properties and heavy metal content. However, it is important to note that the levels of heavy metals in the Nong-Aung public forest do not exceed Thailand’s standards. The study also examines the heavy metal content in various mushroom species, including Mycoamaranthus cambodgensis (Pat.) Trap, Ganoderma applanatum (Pers.ex Wallr.) Patouillard, Heimioporus japonicus (Hongo) E. Horak, Thaeogyroporus porentosus (berk. ET. Broome) and total mushrooms suitable for consumption. The research reveals that the mushrooms have an average Cd content of 0.558 ± 0.908 mg/kg dry weight, with quantities of other elements as follows: Pb 1.740 ± 2.441 mg/kg dry weight, Mn 266 ± 128 mg/kg dry weight, Ni 4.44 ± 2.83 mg/kg dry weight, and As 0.014 ± 0.005 mg/kg dry weight. Importantly, the heavy metal content of mushrooms in the public forest does not exceed the established standards. However, the study highlights concerns regarding the quality of soil in the public forest and its potential impact on the environment and local biodiversity. The paper concludes by emphasising the need for local government and citizen advocacy to impose restrictions on the expansion of waste disposal areas in the public forest.
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Cakaj, Arlinda, Anetta Hanć, Marta Lisiak-Zielińska, Klaudia Borowiak, and Maria Drapikowska. "Trifolium pratense and the Heavy Metal Content in Various Urban Areas." Sustainability 15, no. 9 (April 28, 2023): 7325. http://dx.doi.org/10.3390/su15097325.
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Effective biomonitoring strategies are essential for identifying and assessing the sources and levels of contamination of heavy metal pollutants in urban areas, given their negative impacts on human health and the environment. This study aimed to assess the potential of common weed, Trifolium pratense as a bioindicator of heavy metal contamination in various land uses in urban areas, with a focus on Cd, Cu, Cr, Ni, and Pb. The results have shown that Cr and Ni had high bioconcentration factor (BCF) values in most sites, in comparison with Cu, Cd and Pb. Contamination factor (CF) values varied across all sites. The industrial area and old town sites had the highest translocation factor (TF) values for Cr and Ni, indicating greater transport of these metals from roots to aerial parts of plants. Differences between heavy metals (HMs) according to land use were observed; especially, Pb and Cu were more concentrated in soils than other heavy metals in industrial areas. Overall, these findings suggest that Trifolium pratense is a promising bioindicator for heavy metal contamination in various land uses in urban areas, making it a potentially valuable tool for monitoring heavy metal pollution in cities of the northern hemisphere.
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Samosir, Aisyah Umi Ramadhani, Rahmatsyah Rahmatsyah, and Rita Juliani. "Study of Heavy Metal Content in Lola Snail (Trochus niloticus) in The Karang Island of Central Tapanuli Regency." Sainteknol : Jurnal Sains dan Teknologi 21, no. 1 (June 16, 2023): 11–17. http://dx.doi.org/10.15294/sainteknol.v21i1.43387.
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Research on the analysis of heavy metal content in the waters of Karang Island, Central Tapanuli Regency aims to know the metal content in Lola Snail meat, sediment, and Lola Snail shells. The research method begins with taking samples of Lola snails and sediments on Karang Island and preparing the samples. Then, the samples were analyzed by AAS (Atomic Absorption Spectrometry) to determine the content of heavy metal elements in the meat of Lola Snail, followed by XRD (X-Ray Diffraction) testing to determine the content of heavy metal elements in sediments, and also testing with EDX (Energy Dispersive X-Ray) to determine the content of heavy metals in the shell. The results of the analysis on the AAS test showed that the order of heavy metal concentrations in Lola snail meat at station I was Zn Cr Cu Cd Pb, while at station II was Zn Cu Cr Cd Pb. The results of the sequence of heavy metal concentrations using XRD in sediments around Karang Island at the station I was Zn Cr Cu Cd Pb, while at station II was Zn Cd Cu Cr Pb. The results of the analysis on the shells of Lola snails using EDX at both stations showed they did not contain heavy metal elements (Pb, Cd, Cu, Cr, and Zn), but only contained O, Ca, Mg, Na, Al, and Si elements.
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Isroni, W., and N. Maulida. "Accumulation of heavy metals Pb and Hg in feather shells (Anadara antiquata) in Lekok Coastal Waters, Pasuruan Regency." IOP Conference Series: Earth and Environmental Science 1036, no. 1 (July 1, 2022): 012091. http://dx.doi.org/10.1088/1755-1315/1036/1/012091.
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Abstract This research is a quantitative descriptive study that aims to determine the heavy metal contamination of Pb and Hg. Sampling was carried out exploratively in the waters of Lekok Beach, Pasuruan Regency. The data obtained were analyzed by descriptive analysis by comparing the quality standards of the Minister of Environment Decree No. 51 of 2004. And analyzed by correlation test to determine the relationship between the content of heavy metals Pb and Hg in seawater and sediment with feather shells. The results of this study indicate that shellfish (Anadara antiquata) can accumulate heavy metals Pb and Hg. The average accumulation of heavy metals Pb and Hg in Anadara antiquata was 2,315 ppm and 1,100 ppm. The average heavy metal content of Pb and Hg along the sea waters of the Lekok coast are 0.204 ppm and 0.073 ppm. In the sediment the average metal content of Pb and Hg is 5.318 ppm and 1.215 ppm. The heavy metal content has exceeded the quality standard limit that has been determined by the Decree of the Minister of the Environment No. 51 of 2004 and RNO, so that it can be harmful to human health who consume shellfish. The results of the correlation test showed that there was a positive correlation between the heavy metal content of Pb and Hg in sediment and seawater and the heavy metal content of Pb and Hg in shellfish.
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Rahardja, Boedi Setya. "STUDI KADAR LOGAM BERAT TIMBAL (Pb) PADA KERANG HIJAU (Perna viridis) DI WILAYAH NGEMBOH, GRESIK DAN PPDI PELABUHAN PERIKANAN NUSANTARA BRONDONG, LAMONGAN, JAWATIMUR." Marinade 4, no. 01 (June 4, 2021): 1–9. http://dx.doi.org/10.31629/marinade.v4i1.3408.
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Marine pollution occurs due to the entry of industrial waste containing chemicals into the aquatic will cause changes to its ecological conditions. Pollutants contained in the waste are in the form of sediment nutrients, pesticides, pathogenic organisms, waste and heavy metals. The purpose of this study was to determine the content of heavy metal Pb in green mussels (Perna viridis), water, and sediments in the Ngemboh, Gresik area and in the waters of the Nusantara Brondong Fishery Port, Lamongan, East Java. The research is observational research with analysis data using linear regression, simple correlation (pearson) and ANOVA. The data collection was carried out by purposive random sampling. The heavy metal content of lead (Pb) in green mussels in Ngemboh waters, Gresik has a heavy metal content of lead (Pb) of 0.871 ppm, 0.199 ppm, 0.161 ppm. The cause of the high content of heavy metal lead (Pb) at station 1 is because it is close to the mouth of the Ngemboh river, where both organic and inorganic waste originate from local residents. Meanwhile, the content of the heavy metal lead (Pb) in green mussels in the waters of the Indonesian fishing port in the archipelago of Brondong, Lamongan, has various values. The values of heavy metal lead (Pb) at both stations were 0.37 ppm and 0.053 ppm. The content of heavy metal lead (Pb) in green mussels has not exceeded the threshold specified in SNI 01-7387-2009, which means that green mussels are still fit for consumption.
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Yevtushenko, N. Yu, N. V. Bren, and Yu M. Sytnik. "Heavy Metal Contents in Invertebrates of the Danube River." Water Science and Technology 22, no. 5 (May 1, 1990): 119–25. http://dx.doi.org/10.2166/wst.1990.0019.
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The paper presents results of heavy metals content in hydrobionts and bioindication of heavy metals primary stage entrance in freshwater ecosystems, The nature investigations which were made on Danube reaches with different levels of anthropogenic influences showed the heavy metals content in invertebrates is determined by changability of heavy metals concentration in water and sediments and their species differences.
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Güleryüz, Gürcan, Hülya Arslan, Belgin İzgi, and Şeref Güçer. "Element Content (Cu, Fe, Mn, Ni, Pb, and Zn) of the Ruderal Plant Verbascum olympicum Boiss. from East Mediterranean." Zeitschrift für Naturforschung C 61, no. 5-6 (June 1, 2006): 357–62. http://dx.doi.org/10.1515/znc-2006-5-610.
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In this study, heavy metal content (Cu, Fe, Mn, Ni, Pb, Zn) was determined in soils and different organs of Verbascum olympicum Boiss. This species is endemic to Uludağ and spreads on destroyed areas such as: roadsides, developed building areas, ski lift stations and sheep folds. Soils and different organs (roots, stems, leaves and flowers) of plant samples were analyzed using an atomic absorption spectrophotometer for determining the element content. Heavy metal contents in soils and different organs in this species were highly correlated (P < 0.05). However, the contribution of plant organs to the accumulation capacity varied according to the metal. These results suggest that this species may be useful as a bioindicator for heavy metals.
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TAO, CAN, XIAOTIAN WEI, BEIYU ZHANG, MAN ZHAO, SHUAI WANG, ZHANGJIAN SUN, DESHENG QI, LVHUI SUN, SHAHID ALI RAJPUT, and NIYA ZHANG. "Heavy Metal Content in Feedstuffs and Feeds in Hubei Province, China." Journal of Food Protection 83, no. 5 (April 13, 2020): 762–66. http://dx.doi.org/10.4315/0362-028x.jfp-18-539.
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ABSTRACT Heavy metal pollution threatens the health and life of animals and humans through the food chain. This study was performed to survey the heavy metal contamination in feedstuffs and feeds in Hubei Province, People's Republic of China, from 2012 to 2016. Samples were analyzed for cadmium (306 samples), mercury (117 samples), chromium (149 samples), and arsenic (4,358 samples) using atomic absorption spectrometry or atomic fluorescence spectrometry. The incidence rates of cadmium, mercury, chromium, and arsenic contamination of feedstuffs and feeds were high, and feeds were most often contaminated with chromium, followed by arsenic, cadmium, and mercury. The concentrations of heavy metals in samples positive for cadmium, mercury, chromium, and arsenic ranged from 0.001 to 1.200, 0.002 to 6.540, 0.060 to 8737.000, and 0.070 to 33.000 mg/kg, respectively. The mineral and additive samples had higher concentrations of heavy metals. The present study findings highlight the importance of monitoring heavy metals in feedstuffs and feeds and implementing feed management and bioremediation strategies to reduce heavy metal exposure. HIGHLIGHTS