Characteristics and Health Risk Assessment of Potentially Toxic Metals in Urban Topsoil in Shenyang City, Northeast China,Clean - Soil Air Water

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Characteristics and Health Risk Assessment of Potentially Toxic Metals in Urban Topsoil in Shenyang City, Northeast China
Clean - Soil Air Water ( IF 1.5 ) Pub Date : 2019-12-12 , DOI: 10.1002/clen.201900228
Hui Wang ₁ , Yueming Zhao ₁ , Muhammad Adeel ₂ , Chunyue Liu ₁ , Yinggang Wang ₁ , Qing Luo ₁ , Hao Wu ₁ , Lina Sun ₁

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Soil samples are collected from 74 sites in Shenyang city, northeast China, and the concentrations, spatial distribution, enrichment factors (EF), and potential ecological and human health risk (E_r) of potentially toxic metals (Sr, Zn, Cr, Pb, Cu, Ni, and As) are investigated. The mean concentrations of potentially toxic metals in topsoil follow the order Sr > Zn > Cr > Pb > Cu > Ni > As. Compared with 2011, the contamination magnitude has improved in 2017, but the pollution status still exists, especially for As and Cr. EF and the mean E_r of potentially toxic metals decrease following the order As > Pb > Cu > Ni > Zn > Cr > Sr and As > Cu > Zn > Pb > Sr > Ni > Cr, suggesting that the potentially toxic metals in the topsoil of Shenyang city mainly come from natural sources, and the potential ecological risk for potentially toxic metals is low. There are potentially non‐carcinogenic and carcinogenic health risks, but they are not considered significant. For non‐carcinogenic health risks, oral ingestion is the main exposure pathway, and Cr and Pb are the major pollutants. Finally, As is found to be the main carcinogenic contamination metal.

更新日期：2019-12-12

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