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Impact of coal power generation on the characteristics and risk of heavy metal pollution in nearby soil

Ecosystem Health and Sustainability 2020年第1期6卷 412-423,411页

作者： Yiqun Zhang Di Wu Chenxing Wang Xiao Fu Gang Wu State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina Institute of Architecture Design and Research Chinese Academy of SciencesBeijingChina

Introduction:The development of coal power base(CPB)poses a severe challenge to the *** conducted a soil survey in Xilinhot CPB,to evaluate and analyze the pollution characteristics,potential ecological risk,and sources of six heavy metals(As,Pb,Cu,Zn,Mn,and Cd)in soil by using Geo-accumulation index,revised Nemerow integrated pollution index(RNIPI),and potential ecological risk index(RI).Outcomes/other:The results showed that the pollution of Cd and As were *** mean of Cd and As were 1.11 mg·kg^(-1) and 25.13 mg·kg^(-1),which were 42.55 times and 4.41 times higher than its local background *** Geo-accumulation indices showed the contamination degree of Cd was strong and As was moderate,and the status of Cu,Pb,Zn,and Mn were *** was strongly contaminated based on its RNIPI and RI ***:The accumulations of As,Pb,and Cd were mainly associated with anthropogenic sources,including coal mining and combustion,and industrial exhaust ***,Mn,and Zn were primarily originated from the parent material(natural sources).Conclusion:This study provides scientific basis and effective countermeasures for the prevention and control of soil pollution in surrounding areas of CPB.

关键词： Soil pollution heavy metal contamination potential ecological risk sustainability coal power base Xilinhot

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