【摘要】 结合潜在危害指数评价方法和加权评分方法,构建了新的地下水中典型污染物的筛选方法,并应用于下辽河平原区域地下水典型污染物的筛选。将急性基准浓度值(CMC)和慢性基准浓度值(CCC)引入潜在危害指数评价中;鉴于潜在危害指数法不考虑化合物的环境浓度,将潜在危害指数法与加权评分法相结合,引进平均浓度、检出频次等影响因素,计算不同污染物加权评分结果;通过聚类分析,筛选出典型污染物。研究表明,下辽河平原区域地下水中筛选出的典型污染物包括:As、NH+4、1,1,2-三氯乙烷、溴二氯甲烷、一氯二溴甲烷、1,1-二氯乙烯、α-六六六、p,p’-滴滴滴、p,p’-滴滴伊、苯并(a)芘。更多还原

【Abstract】 In the present study,one new method was constructed by combining potential damage index method and weighted marking method,which was applied to screen the typical pollutants in groundwater of Liao River basin. Criteria maximum concentration( CMC) and criteria continuous concentration( CCC) were introduced into the calculation of potential damage index.Considering the concentrations of pollutants weren’t counted when the potential damage risk index were calculated,the new method combining potential damage risk index with the weighted marking method was adapted to screen the typical pollutants in groundwater. The mean concentration and detection frequency of the pollutants were introduced in calculation different pollutants weighted scores. Furthermore,the typical pollutants were screened by clustering analysis. The typical pollutants in groundwater of Liao River basin included As,NH+4,1,1,2- methyl chloroform,bromodichloromethane,chlorodibromomethane,1,1-dichloroethylene,α-hexachlorocyclohexane,1,1-Dichloro-2,2-bis( p-chlorophenyl) ethane( p,p’-DDD),1,1-dichloro-2,2-bis( 4-chorophenyl) ethylene( p,p’-DDE),Benzo( a) pyrene.更多还原