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Levels,trends and risk assessment of arsenic pollution in yangzonghai Lake,Yunnan Province,China

Science China Chemistry 2010年第8期53卷 1809-1817页

作者： WANG ZhenHua1,HE Bin1,PAN XueJun2,ZHANG KeGang1,WANG Chang1,SUN Jing1,YUN ZhaoJun1 & JIANG GuiBin11State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China 2School of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing China School of Environmental Science and Engineering Kunming University of Science and Technology Kunming China

The arsenic contamination accident in yangzonghai Lake,Yunnan has been of wide *** order to investigate the arsenic distribution and concentration trends after the accident,samples including lake water,sediments,soil,aquatic organisms and crops were collected in November 2008,as well as in February,May and September *** average arsenic concentrations (arithmetic average) in lake water in the four sampling events were 176.9,147.3,159.3,and 161.1 μg/L,while those in the sediments were 32.87,62.41,62.99,and 46.96 μg/g,*** highest content of total arsenic in soil in the vicinity of yangzonghai was 23.33 μg/g,which was below the limits of the relevant national *** total arsenic levels in most aquatic plants were in the range of 100-200 μg/g,with Vallisneria natans (Lour.) Hara having the highest concentration of ～300 μg/*** arsenic levels of fish and shrimps were in the range of 1.52-11.4 μg/g (dry weight).

关键词： yangzonghai Lake arsenic pollution level trends risk assessment

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