莫愁湖底泥重金属污染评价-《中国教育技术装备》(2011年9期).docx

龙源版权所有 莫愁湖底泥重金属污染评价作者：吴刚刚 吴晓霞 陈昌云来源：《中国教育技术装备》2011年第09期 摘要 通过对莫愁湖底泥中铜（Cu）、铅（Pb）、锌（Zn）、铬（Cr）、镉（Cd）5种重金属元素的含量分析，并运用地累积指数法和潜在生态风险指数法对其污染程度和潜在生态风险进行评价。结果表明，5种重金属中，只有Pb为无-中度污染，其余4种均未构成污染；莫愁湖底泥中重金属污染的潜在生态风险表现为极轻微的程度，生态风险顺序是：Cd＞Pb＞Cu＞Cr＞Zn。 关键词 莫愁湖；底泥；重金属污染；地累积指数法；潜在生态风险 中图分类号：X524 文献标识码：B 文章编号：1671-489X(2011)09-0104-02 Evaluation on Pollution of Heavy Metal in Mochou Lake//Wu Ganggang, Wu Xiaoxia, Chen Changyun Abstract In this paper, the sediments of Mochou Lake were sampled and analyzed for the contents of 5 kinds of heavy metals (Cu, Pb, Zn, Cr and Cd) and evaluated by the Index of Geoaccumulation and the Index of the Potential Ecological Rick. The results showed that the Pollution by Pb was 0-1 degree while that of the other 4 were free of pollution. Generally, Mochou Lake was exposed to a light potential ecological risk, the degree ranked as follows: Cd＞Pb＞Cu＞Cr＞Zn. Key words Mochou Lake; sediment; heavy metal pollution; index of geoaccumulation; potential ecological risk Author’s address School of Biochemical and Environmental Engineering, Nanjing Xiaozhuang University, Nanjing, China 211171 莫愁湖是金陵名胜古迹之一，已有1 500多年历史，其美丽的风景与丰富的人文景观享誉于世。随着经济的飞速发展，城市的扩张，原本···试读结束