大庆市北二十里泡湿地沉积物重金属污染及潜在生态危害评价  

Pollution and the Potential Ecological Risk Assessment of Heavy Metals in Sediment of Beiershilipao Wetland in Daqing

作　　者：张敏[1] 张思冲[1] 叶华香[1] 李丽颖[1] 

机构地区：[1]哈尔滨师范大学生命与环境科学学院,哈尔滨150080

出　　处：《黑龙江水专学报》2007年第4期111-115,共5页Journal of Heilongjiang Hydraulic Engineering College

基　　金：国家自然科学基金资助项目(40671004);哈尔滨师范大学骨干教师基金资助项目(KG2006-01)

摘　　要：采用潜在生态危害指数法对北二十里泡湿地沉积物重金属元素进行潜在生态危害评价,并利用SPSS 11.5 for Windows统计软件对重金属污染物做了相关性分析。结果表明:大多数重金属元素之间具有极显著关系,即具有共同变化的趋势,地球化学性质相似;北二十里泡湿地底泥中重金属Hg和Cr含量较高,分别表现为超极强生态危害型和极强生态危害型的污染程度。This paper dealt with the method of Lars Hakanson potential ecological risk index and SPSS 11. 5 for Windows statistics software. The result showed that the sediment is the more stable place of various pollutant accumulating and enriching, the density of pollutant in it can reflect the pollution degree of the river indirectly. The pollution condition of the sediment is an important factor of measuring the water envi ronment quantity condition completely. We found that the contents of Hg, Cr were very high in sediment of Beiershilipao wetland , and there existed super extremely stronger ecological risk and extremely stronger ecological risk for them. The correlation of these heavy metals in this wetland is very evidence, which reflects their concomitant geochemical characteristic.

关 键 词：北二十里泡 底泥 重金属 潜在生态危害 相关性 

分 类 号：X830[环境科学与工程—环境工程]