鄱阳湖悬浮物重金属污染及潜在生态风险评价  

Pollution and potential ecological risk assessment of heavy metals in suspended solids in Poyang Lake

作　　者：胡春华[1,2] 于婷[1,2] 周文斌[1,2] 

机构地区：[1]南昌大学鄱阳湖环境与资源利用教育部重点实验室,江西南昌330029 [2]南昌大学环境与化学工程学院,江西南昌330031

出　　处：《人民长江》2012年第10期58-61,共4页Yangtze River

基　　金：国家自然科学基金项目(40672159,41040032);“十一五”国家科技支撑计划重点项目(2007BAB23CO2);国家水体污染控制与治理科技重大专项(2008zx07526-008-03);国际科技合作资助项目(2006DFB91920)

摘　　要：为了分析鄱阳湖悬浮物重金属的潜在生态危害,实地采集水样分析了悬浮物重金属的含量及污染特征。根据分析成果,采用Hakanson潜在生态危害指数法评价了鄱阳湖悬浮物重金属污染程度。分析评价结果表明:鄱阳湖南湖区的悬浮物重金属潜在生态危害大于北湖区;具有潜在生态危害的主要重金属是Cd和Cu;鄱阳湖大部分区域已达中度以上危害程度,轻度危害水平区域只占1/8;悬浮物重金属的赋存含量不仅与其赋存方式有关,与元素本身也有关联性。In order to analyze potential ecological risk of heavy metals in suspended solids in Poyang Lake, in - situ water was sampled and heavy metal contents in suspended solids as well as their pollutant characteristics were analyzed. Based on the analyzed results, heavy metal pollution of Poyang Lake is assessed by Hakanson ecological risk index. The analysis results show that the heavy metal pollution in suspended solids in southern area of the Poyang Lake is heavier than that in northern area of the lake ; the main potential heavy metals are Cd and Cu; the most area of the lake is moderately polluted, only 1/8 area is lightly polluted. The heavy metal contents in suspended solids are not only related with their occurrence mode, but also related with metal elements themselves.

关 键 词：悬浮物 重金属 污染分析 生态风险评价 鄱阳湖 

分 类 号：X171[环境科学与工程—环境科学]