长江科学院院报2017，Vol.34Issue(10)：6-10,16,6.DOI:10.11988/ckyyb.20160639
巢湖表层沉积物与环棱螺重金属分布特征及生态风险评价
Heavy Metals in Surface Sediments and Bellamya of Chaohu Lake: Distribution Characteristics and Risk Assessment
摘要
Abstract
Surface sediment samples and Bellamya were taken from the Chaohu Lake.The concentration and space distribution of heavy metals (Cd,Cr,Cu and Pb) were studied by HNO3-HF-HClO4 digestion-ICP-AES (Inductively coupled plasma atomic emission spectrometry).The pollution levels of the four heavy metals were evaluated by the potential ecological risk index,single factor pollution index and root mean square composite index.Results suggest that the sediments in Chaohu Lake have been polluted to a certain extent by heavy metals (Cd,Cr,Cu and Pb),among which Cd poses the largest potential ecological risk,while Pb and Cr are the high risk elements for BelIamya.The distribution characteristics and correlation analysis of heavy metals showed that the heavy metal sources in the sediments of Chaohu Lake are of similarity;whereas the sources of heavy metals in Bellamya are different due to multiple environmental factors.In conclusion,treatments of heavy metals (Cd,Cr,Cu and Pb) should be emphasized and the application of biological monitoring mwasures to shellfish should be strengthened.关键词
表层沉积物/环棱螺/重金属/风险评价/巢湖环境治理Key words
surface sediment/Bellamya/heavy metal/risk assessment/environmental governance of Chaohu Lake分类
资源环境引用本文复制引用
江江,李玉成,蒋更可,王宁,张学胜..巢湖表层沉积物与环棱螺重金属分布特征及生态风险评价[J].长江科学院院报,2017,34(10):6-10,16,6.基金项目
国家自然科学基金项目(41172121) （41172121）
安徽省自然科学基金青年项目(1608085QB45) （1608085QB45）
安徽省高等学校自然科学重点项目(KJ2015090) （KJ2015090）
