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《Environmental Science Survey》 2012-05
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The Research Progress on the Arsenic Pollution of the Rivers and Lakes in China

JIN Xue-lian1,REN Jing1,XIA Feng2(1.College of Resources and Environment,Yunnan Agricultural University,Kunming Yunnan 650000 China)  
Based on the review of the current arsenic pollution of the 27 rivers and lakes in the 14 provinces of China,it is considered that they are seriously polluted by arsenic.The content of arsenic in most water systems exceeds the arsenic background value of the world fresh water,with the maximum value up to 1.9 mg/L.The arsenic content in the upper sediment layer ranges from 4.0 ~ 980.6mg/kg.44.5% of the sediment is moderately polluted or even worse.Mining is one of the major causes for such pollution.After the morphological analysis of the arsenic in the upper sediment layer in waters,the migration and transformation of the arsenic and their impacts are discussed.The arsenic in the upper sediment layer in these waters exists mainly as residue.The comparison of the six arsenic removal methods in waters tells us the soil method is a cheap and efficient in-situ treatment.It is suggested to strengthen the morphological research of the arsenic in the sediment and to provide a systematic explanation about its migration and transformation in the surface waters like rivers and lakes.
【Fund】: 国家科技重大专项(2010ZX07212-007)
【CateGory Index】: X52
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