基于PMF模型的青城子镇农田土壤重金属源解析  

作　　者：王星蒙 

机构地区：[1]辽宁省生态环境监测中心,辽宁沈阳110161

出　　处：《环境保护与循环经济》2021年第6期93-95,105,共4页environmental protection and circular economy

摘　　要：以青城子镇农田土壤为研究对象,测定土壤样品中8种重金属的含量,对数据进行指数评价,并在此基础上结合正定矩阵因子(PMF)受体模型,定量解析农田土壤重金属的来源。结果表明,8种重金属的均值范围为0.11~696.2 mg/kg。根据PMF分解模型解析结果,将因子1判定为交通源,因子2判定为化石燃烧源,因子3判定为金矿污染源,因子4判定为铅锌矿污染源,因子5判定为自然源。Taking the farmland soil around Qingchengzi town as the research object,eight heavy metal contents in the samples were determined,and the test data were evaluated.On this basis,combined with the positive definite matrix factor(PMF)receptor model,the sources of heavy metals in farmland soil were quantitatively analyzed.The results showed that the average range of eight heavy metals was 0.11-696.2 mg/kg.According to the analytic results of positive definite matrix factorization model,factor 1 is determined as traffic source;factor 2 is determined as fossil combustion source;factor 3 is determined as gold mines pollution source;factor 4 is determined as lead-zinc mines pollution source;factor 5 is determined as natural source.

关 键 词：PMF 农田 土壤重金属 源解析 

分 类 号：X53[环境科学与工程—环境工程]