成都市双流区大气中TSP及重金属污染分析  

Analysis of TSP and Heavy Metal Pollution in Shuangliu District,Chengdu City

作　　者：杨贵宇 宁静 李益华 YANG Gui-yu;NING Jing;LI Yi-hua(College of Chemistry&Environment Protecting Engineering,Southwest Minzu University,Sichuan Chengdu 610041,China)

机构地区：[1]西南民族大学化学与环境保护工程学院,四川成都610041

出　　处：《广州化工》2020年第16期120-122,共3页GuangZhou Chemical Industry

基　　金：西南民族大学省级大学生创新项目(S201910656136);四川省科技厅项目(19YYJC0226)。

摘　　要：本论文对2019年春季成都市双流区大气总悬浮颗粒物(TSP)进行采集,使用ICP-MS分析了TSP中重金属元素Mn、Ni、Cr、Cd、V和As的浓度,并对健康风险进行了评估。结果表明:(1)TSP平均浓度为162μg·m-3,影响TSP浓度的主要因素是降雨,其次是风向;(2)TSP中各元素的平均浓度由大到小为:Mn>As>Cr>V>Ni>Cd;(3)Mn仅对儿童有非致癌风险,V的非致癌风险较小,As和Cr对所有人群有致癌效应,Cd仅对成人有致癌效应,Ni对所有人群的致癌风险较小。The total suspended particulates(TSP)matter in the atmosphere of Shuangliu district,Chengdu in spring in 2019 was collected,and the concentration of heavy metal elements in the particulates matter including Mn,Ni,Cr,Cd,V and As was analyzed by using inductively coupled plasma mass spectrometry(ICP-MS).Then,the exposure risks to human health of the above metals were assessed.The results showed that:(1)The average concentration of TSP was 162μg·m-3,and the main factor that affected the TSP concentration was rainfall,followed by the wind direction;(2)The average concentration of each element in the TSP of Chengdu was arranged as:Mn>As>Cr>V>Ni>Cd;(3)Mn element in the TSP showed only a non-carcinogenic risk for children,and the non-carcinogenic risk of V was small.As and Cr elements had carcinogenic effects on all populations.Cd only had a carcinogenic effect on adults,and Ni had a low carcinogenic risk to all populations.

关 键 词：大气总悬浮颗粒物 重金属 健康风险 

分 类 号：X826[环境科学与工程—环境工程]