Volume 24, Issue 1 (Spring 2020)                   jwss 2020, 24(1): 121-132 | Back to browse issues page

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Mehri Yari F, Pirkharrati H, Farhadi K, Soltanalinezhad N, Naghshafkan F. Evaluation of Heavy Metals Pollution in Lakes Subsoil and Surface Soils in Urmia Eastern Region Using Pollution Indicators. jwss 2020; 24 (1) :121-132
URL: http://jstnar.iut.ac.ir/article-1-3808-en.html
1- Department of Geology, College of Science and University of Urmia, Urmia, Iran. , H.Pirkharrati@Urmia.ac.ir
Abstract:   (4639 Views)
Soil pollution by heavy metals is a serious environmental problem that threatens the human health. The present study was carried out to investigate and detect the contamination of heavy metals of arsenic, copper, lead, zinc and iron due to human and natural activities in the sediment of lake bed and the surface soils of the eastern part of Urmia Province, West Azarbaijan Province. A total of 20 soil samples and surface deposition from the depths of 0 to 30 cm were collected randomly from the studied areas. After preparing the samples, extraction was carried out to determine the concentration of the heavy metals in the soil by using hydrochloric acid and nitric acid, and the total concentration of metals was measured using ICP-OES. The results of the calculation of the contamination factor showed that copper, iron, zinc and lead in the class of low and medium pollution and arsenic in 65.5% of the samples were very high in the class. The high concentrations of copper, lead and zinc contamination in the margin of the city and the contamination of arsenic in the lake bed were observed. The analysis of the contamination factor maps and contamination index with land use and geological map showed that copper, lead and zinc were mostly affected by human activities and arsenic influenced by the maternal materials in the region.
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Type of Study: Research | Subject: Ggeneral
Received: 2018/12/10 | Accepted: 2019/07/8 | Published: 2020/05/30

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