Characteristics and potential ecological risks of heavy metal pollution in surface soil around coal-fired power plant

被引：0
作者：
Yunhu Hu
Mu You
Guijian Liu
Zhongbing Dong
机构：
[1] Huainan Normal University,School of Chemistry and Materials Engineering
[2] National Center for Quality Supervision and Inspection of Coal Chemical Products (Anhui),School of Bioengineering
[3] Huainan Normal University,School of Earth and Space Sciences
[4] University of Science and Technology of China,School of Earth and Environment
[5] Anhui University of Science and Technology,undefined
来源：
Environmental Earth Sciences | 2021年 / 80卷
关键词：
Coal-fired power plant; Surface soil; Heavy metal; Spatial distribution; Environmental risk;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The concentrations of heavy metals (As, Cd, Cr, Cu, Hg, Mn, Pb and Zn) in surface soils in the area surrounding a coal-fired power plant in China were measured, the distribution characteristics of heavy metals in different wind directions were analyzed, and the pollution degree of heavy metal in soil was evaluated. The soil around the power plant is generally polluted by heavy metals, and the degree of pollution is heavy pollution and moderate pollution. The comprehensive potential ecological hazard index of heavy metals in the soil around the power plant was 155.09–293.04, and the potential ecological hazard was moderate or strong. Cd, Hg and As contributed more to RI than other heavy metals. The values of Nemerow index and potential ecological risk index are different among different directions and different distances from the power plant. Cd, Hg and As are the mainly contributors for the potential ecological risk. The results revealed that wind direction is important for the distribution of heavy metal around coal-fired power plant. The study can provide a theoretical basis for the prevention and management of soil heavy metal pollution around coal-fired power plant.
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