重金属污染评价及其污染源识别  

Pollution Assessment and Sources Identification of Metal

作　　者：朱远平[1] 周怡[1] 

机构地区：[1]广东药学院医药信息工程学院,广东广州510006

出　　处：《数学的实践与认识》2012年第17期62-68,共7页Mathematics in Practice and Theory

摘　　要：重金属污染综合防治被纳入十二五规划.对土壤重金属污染物来源的评价和准确鉴别,是有效控制和治理污染源的前提.对采集的金属污染数据,采用主成分综合评价与内梅罗综合评价,结合克里金描述金属污染的空间分布.对数正态分布确定污染源个数,建立分段加权高斯扩散模型,遗传算法搜索污染源.The State Council approved the ＂Twelfth Five-Year Plan＂ for the Comprehensive Prevention and Control of Heavy Metal Pollution. Source identification of heavy metals was the precondition of preventing and controlling pollution.This paper adopts principal component comprehensive evaluation and nemerow comprehensive evaluation to analysis the metal pollution data. To describe the spatial distribution of soil heavy metal pollution by kriging.The number of pollution sources axe obtained by applying lognormal distrbution plots to heavy metals, this paper gaussian piecewise model.genetic algorithm is used to search for the location parameters can be regarded as sources of the heavy metal pollutants.

关 键 词：高斯扩散模型 遗传搜索污染源 金属污染空间评价 

分 类 号：X820[环境科学与工程—环境工程] X501