基于三角模糊原理的沉积物重金属污染风险评价  

Pollution risk assessment of heavy metals in the sediments based on triangular fuzzy number theory

作　　者：黄本柱[1] 洪天求[1] 李如忠[1] 石勇[1] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2009年第9期1386-1390,共5页Journal of Hefei University of Technology：Natural Science

基　　金：安徽省"十一五"科技攻关计划重点项目(07010302165);安徽省科技攻关计划重点项目(07020303063)

摘　　要：基于沉积物重金属实测数据的模糊性和不精确性,采用三角模糊数处理和表征重金属含量。在定义三角模糊参数的基础上构建地累积指数模糊评价模型,并提出了污染风险等级识别的模糊评判模式;作为案例,将上述模糊模型应用于巢湖烔炀河口沉积物重金属污染风险评价,取得了较好效果。In view of the fuzziness and imprecision of measured data of heavy metals in the sediments, heavy metal contents are treated and characterized by triangular fuzzy numbers. On the basis of defining the triangular fuzzy parameters, a fuzzy evaluation model of the index of geoaccumulation is established, and the fuzzy evaluation mode is given to determine the degree of the pollution risk. As a case study, the presented fuzzy model is used to evaluate the pollution risk of the heavy metals in the sediments at the Tongyang estuary of the Chaohu Lake.

关 键 词：三角模糊数 地累积指数 烔炀河口 重金属 

分 类 号：X520[环境科学与工程—环境工程]