基于两种模型的城市土壤重金属污染等级研究  

Heavy Metal Pollution Level of Urban Soil Based on Two Models

作　　者：龚杰[1] 张敏[1] 雷林[1] 

机构地区：[1]重庆交通大学航海学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2014年第2期100-102,共3页Journal of Chongqing Jiaotong University(Natural Science)

摘　　要：通过模糊数学分析的方法,建立了综合污染指数模型;利用离散数学原理,建立内梅罗指数模型,分别对城市土壤重金属污染程度进行分析和评价。结果表明:南岸交通区的污染等级为重度污染等级,工业区为警戒线等级,生活区和农业区分别为轻度污染和清洁等级。研究结论与实际现状一致,表明所建立模型可靠。A comprehensive pollution index model was established by the fuzzy mathematical analysis method. Carmelo index model was established by the use of discrete mathematical principles. And then the degree of heavy metal contamination of urban soils was analyzed and evaluated by the two models mentioned above. The results show that in Nan＇ an District, the pollution level of traffic areas is the highest; the industrial parks are in a cordon grade; the utility area and the agricultural area is in light degree of contamination and clean grade respectively. It is consistent with the actual situation and the models are reliable.

关 键 词：环境工程 模糊分析 内梅罗指数 重金属污染 

分 类 号：X53[环境科学与工程—环境工程]