Ecological and Human Health Risks Assessment of Potentially Toxic Elements Contamination of Surface Soils in Shushtar and Dezful, Iran
سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 87
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شناسه ملی سند علمی:
JR_JAEHR-11-1_004
تاریخ نمایه سازی: 29 خرداد 1402
چکیده مقاله:
Background: The potentially toxic elements (PTEs) are one of the most dangerous pollutants in the environment. In this study, the elements namely cadmium, lead, chromium, nickel, copper and zinc were investigated in the soil.Methods: In this study, ۱۴۴ composite samples were randomly prepared from surface soils in a depth of ۱۰ cm in the cities of Shushtar and Dezful. Soil sampling was performed in ۱۲ stations in Shushtar and Dezful. The PTEs were determined by ICP Varian ۷۱۰-ES device.Results: The pattern of accumulation of PTEs was as Cu > Pb > Cd > Zn > Ni > Cr in Dezful. In Shushtar, the accumulation of metals in the soil was as Cu > Pb > Cd > Ni > Zn > Cr. The concentration of Ni and Cr in the surface soils of Shushtar was higher than Dezful. The Ecological risk of Cd in the surface soils of Dezful and Shushtar was higher than other PTEs. The most important risk factor for carcinogenicity was related to Cr (۳.۱۵ × ۱۰-۷) in children. Hazard quotient (HQ) value of studied PTEs for adults and children were obtained by ingestion, inhalation, and dermal contactabsorption of less than ۱.Conclusion: According to the results, the PTEs of Cd, Pb and Cu caused high pollution in the soils of Shushtar and Dezful, which is due to agricultural, industrial and urban activities in these areas. In general, the metals Cr, Zn and Ni slightly contaminated the soil. Also, the ecological risk of PTEs showed that the highest effects on soil was related to Cd and Pb metals.
کلیدواژه ها:
نویسندگان
Khoshnaz Payandeh
Department of Soil Sciences, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
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