Research progress of heavy metal pollution in China:Sources,analytical methods,status,and toxicity  

作　　者：HE Bin YUN ZhaoJun SHI JianBo JIANG GuiBin 

机构地区：[1]State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences

出　　处：《Chinese Science Bulletin》2013年第2期134-140,共7页

基　　金：supported by the National Basic Research Program of China(2013CB430004);the National Natural Science Foundation of China(20937002,21120102040,20977107,21075130)

摘　　要：Heavy metal pollution is one of the most serious environmental problems in China and a large number of people are threatened by heavy metal pollution.Extensive damage to human organs,such as liver,kidney,digestion system,and nervous system can be caused by uptake of excess heavy metals.Heavy metals in the environment can originate from both natural and anthropogenic sources.Although contamination of heavy metals has been known to be a severe environmental problem for decades,it is still getting worse in recent years and there are few feasible approaches to resolve this problem.Due to their high toxicity,prevalent existence and persistence in the environment,lead(Pb),mercury(Hg),cadmium(Cd),chromium(Cr) and arsenic(As) are commonly considered as the priority heavy metals which should be concerned and their emission should be controlled in China.This paper reviewed the pollution of heavy metals in China,focusing on the following four aspects:current status of heavy metal pollution in China,sources of heavy metals in China,toxicity and potential risk,and possible reduction strategies.Heavy metal pollution is one of the most serious environmental problems in China and a large number of people are threatened by heavy metal pollution. Extensive damage to human organs, such as liver, kidney, digestion system, and nervous system can be caused by uptake of excess heavy metals. Heavy metals in the environment can originate from both natural and anthropogenic sources. Although contamination of heavy metals has been known to be a severe environmental problem for decades, it is still getting worse in recent years and there are few feasible approaches to resolve this problem. Due to their high toxicity, prevalent existence and persistence in the environment, lead （Pb）, mercury （Hg）, cadmium （Cd）, chromium （Cr） and arsenic （As） are com- monly considered as the priority heavy metals which should be concerned and their emission should be controlled in China. This paper reviewed the pollution of heavy metals in China, focusing on the following four aspects： current status of heavy metal pol- lution in China, sources of heavy metals in China, toxicity and potential risk, and possible reduction strategies.

关 键 词：重金属污染 高毒性 中国 污染来源 环境问题 状态 镉(CD) 人体器官 

分 类 号：X502[环境科学与工程—环境工程]