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| 扬州古运河底泥重金属污染潜在生态危害评价 |
| Environmental Assessmenton Heavy M etalPollution of Sedimentin Yangzhou Ancient Canal with Potential Ecological Risk Index |
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| DOI： |
| 中文关键词: 底泥 重金属 潜在生态危害 扬州 古运河 |
| 英文关键词: Sediment Heavymetal Potentialecologicalrisk Yangzhou Ancientcanal |
| 基金项目: |
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| 中文摘要: |
| 对扬州古运河底泥重金属污染潜在生态危害进行了调查与评价。结果表明, 古运河各监测断面的潜在生态危害指数等级为轻微至强。经综合整治,2002 年后古运河重金属污染潜在生态危害指数较2002 年之前显著下降。下游因曾经工厂聚集, 污染程度高于上游, 毒性系数较大的Cd和Hg的潜在生态危害始终排在首位。 |
| 英文摘要: |
| In orderto evaluatepotentialecologicalrisk, heavymetalpollutionin sedimentofthe Yangzhou AncientCanalwasinvestigated. Resultsshowed thatlevelsofecologicalrisk index were from low to high. The risk index ofthe Canalfrom 2002 dropped significantly by environmentalcomprehensive renovation project.Downstream pollution ofthe riverwashigherthan thatofthe upper. Cd and Hg ofhigh toxicity coefficientcon sistentlylisted on top ofpotentialecologicalrisks |
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