Historical evidence of heavy metal contamination and risk in Weishan Lake, the lower lake of Nansi Lake, China
Lacustrine pollution with heavy metals has been a major concern worldwide due to the rapid urbanization and industrial development (Schindler and Smol,2006;Hansen,2012;Hou et al.,2013).Heavy metals enter lakes from weathering rocks,soil erosion,and anthropogenic activities,and are finally deposited in the sediment (Yang and Rose,2005;Bacardit et al.,2012).As such,sediments serve both as reservoirs and potential sources of heavy metals to the water column.Sediment-associated heavy metals have the potential to cause direct effects on sediment-dwelling organisms and to adversely affect wildlife and human health when these substances are accumulated in the food web (UNEP,2011;Alves et al.,2014).Therefore,the profiles of heavy metals in lake sediments can provide historical status and risk of lacustrine ecosystems (Ra et al.,2011;Conaway et al.,2012;Ma et al.,2013).With this information,the efficiency of pollution management strategies can be evaluated,and regulatory actions can be implemented to reduce potential environment and health risks.
ShujuanWang Wei Guo Tianen Zhai Shouliang Huo
School of Environmental and Chemical Engineering, North China Electric Power University,Beijing, 102 State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Envi
国际会议
北京
英文
309-310
2015-11-02（万方平台首次上网日期，不代表论文的发表时间）