Mostafa Abyareh; Farhad Nejadkoorki; Mohammad Reza Ekhtesasi; Mohammad Akhavan Ghalibaf
Abstract
Abstract Backound and purpose: The communities have been faced the environmental challenges by dust particles as an important part of air pollution that are emitted into the atmosphere every day by chimney of factories and power plants out. The aim of this study was to determine the quality and quantity ...
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Abstract Backound and purpose: The communities have been faced the environmental challenges by dust particles as an important part of air pollution that are emitted into the atmosphere every day by chimney of factories and power plants out. The aim of this study was to determine the quality and quantity of industrial dust around the Yazd Steel Company to control and supervise the industrial dust to make the better environmental condition. Materials and Methods: In this study, according to the wind direction, the falling dust particles, were collected and weighted in two sediment stations before and after the company from 1/2/2016 to 30/4/2016. The sampling was done by MDCO. Then, the taken samples transferred to an elemental analysis laboratory, and the amounts of dust-forming elements were measured by XRF device. Results. Based on the obtained results, the maximum and minimum levels of the concentrations of falling dust particles were 32.9g/m2 on March for,0.0014 g/m2 on February for SiO2 and SrO respectively. the major elements and chemical compounds of dust included: SiO2، CaO، CO2، Al2O3، MgO، Fe2O3، K2O، Na2O، SO3، TiO2، Cl، p < sub>2O5، MnO، ZnO، Pt، Au، SrO. . Conclusions: The results of statistical tests demonstrated that there was a significant difference between the amounts of these elements before and after the company. Therefore, proper management and more accurate monitoring are necessary to protect the environment in this industry
Mostafa Abyareh; Farhad Nejadkoorki; Mohammad Reza Ekhtesasi; Mohammad Akhavan Ghalibaf
Abstract
Background and purpose: Expanded industries and incorrect management led to land pollution, which caused irreparable damage to nature and organisms. Therefore, investigating the role of industrial centers in soil pollution is among the most important measures in field of pollution control. This study ...
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Background and purpose: Expanded industries and incorrect management led to land pollution, which caused irreparable damage to nature and organisms. Therefore, investigating the role of industrial centers in soil pollution is among the most important measures in field of pollution control. This study aimed to evaluate the Heavy Metals contamination in Surface Soil Caused by Steel Industry. Materials and Methods: In this study, to determine the concentration of Cadmium and Lead in soil, 6 soil samples with a depth of 0-5 cm from surrounding areas were collected. Lead and Cadmium levels were measured in soil samples by flame atomic absorption. The statistical indices for concentrations of elements in soil dust were calculated, then the concentrations of the elements in soil before and after the factory were compared, and In order to evaluate the contaminations of heavy metals and to study the environmental impact of the modified degree of contamination, the degree of contamination and the potential environmental risk were calculated. Results: The minimum and maximum amounts for Cadmium and Lead contamination in soil were 24.60, 99.30 and 35.60, 156.30 mg/kg respectively. The results indicated there was a meaningful difference between the amount of Cadmium before and after the company. The pollutant index for Cadmium was extreme and dangerous, whereas the pollutant index for Lead was not critical. Conclusion: Concentrations of two measured elements showed that only level of cadmium was higher than global standards and this indicates polluting role of this factory. Therefore planning for control the release of this metal and other pollutants should be considered.