| 成都市河流表层沉积物重金属污染及潜在生态风险评价 |
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| 引用本文： | 尚英男,倪师军,张成江,黄艺,尹观.成都市河流表层沉积物重金属污染及潜在生态风险评价[J].生态环境,2005,14(6):827-829. |
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| 作者姓名： | 尚英男 倪师军 张成江 黄艺 尹观 |
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| 作者单位： | 成都理工大学地球化学系,四川,成都,610051 |
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| 基金项目： | 中国地质调查局地质调查项目（200314200015） |
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| 摘 要： | 根据流经成都市内的三条河流（府河、南河、沙河）表层沉积物重金属数据，采用Hakanson潜在生态危害指数法对重金属的潜在生态风险进行了评价。结果表明（1）重金属潜在的生态危害因子（Er^i）说明大多属于轻微生态危害范畴，产牛生态危害的主要重金属是Hg、Cd，Cu、Pb次之，As影响最小；（2）多种重金属的生态系统的潜在生态风险指数（RI）表明河流重金属污染属于轻微生态危害和接近中等生态危害，其受危害程度由强至弱的次序为：府河，南河，沙河。
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| 关 键 词： | 成都 表层沉积物 重金属 潜在生态风险评价 |
| 文章编号： | 1672-2175（2005）06-0827-03 |
| 收稿时间： | 2005-06-30 |
| 修稿时间： | 2005年6月30日 |
Pollution of heavy metals in the surface sediments from rivers in Chengdu and their potential ecological risk |
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| SHANG Ying-nan,NI Shi-jun,ZHANG Cheng-jiang,HUANG Yi,YIN Guan.Pollution of heavy metals in the surface sediments from rivers in Chengdu and their potential ecological risk[J].Ecology and Environmnet,2005,14(6):827-829. |
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| Authors: | SHANG Ying-nan NI Shi-jun ZHANG Cheng-jiang HUANG Yi YIN Guan |
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| Institution: | Department of Geochemistry, Chengdu University of Technology, Chengdu 610051, China |
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| Abstract: | Based on the data of heavy metals in the surface sediments from three rivers in Chengdu, which include the Shahe river, Fuhe river and Nanhe River,the potential ecological risk of heavy metals were analyzed and assessed by using the method of poten-tial ecological risk indices presented by Hakanson. The results shows that (1)The contamination factor (Eri) of surface sediments from rivers is light and the main factor caused ecological hazard is mercury and cadmium, following by copper, lead and Arsenic(.2)The contamination level of surface sediments are from light to moderate; Fuhe river is more serious than Nanhe river and Shahe river. |
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| Keywords: | Chengdu surface sediments heavy metals assessment of potential ecological risk |
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