摘要
为掌握潍坊市PM2.5的主要来源、各排放源对PM2.5的贡献与内陆、沿海城市的差别,采集了潍坊市2017年不同季节环境受体中PM2.5样品和源样品,分析了样品中的化学组分,建立了源成分谱和受体组分数据库,基于复合受体模型和源排放量等对潍坊市PM2.5进行了来源解析。结果表明:(1)PM2.5和化学组分浓度总体表现为秋冬季较高、春夏季较低。(2)潍坊市源解析结果总体介于沿海城市和内陆城市之间。(3)精细化源解析表明:煤烟尘是首要的贡献源类,其分担率达到36.0%,其中电厂、工业、民用燃煤的分担率分别为14.4%、18.0%和3.6%;机动车尘的分担率达到25.4%,其中载客、载货、其他汽车的分担率分别为6.3%、14.0%和5.1%;扬尘中土壤风沙尘、建筑水泥尘的分担率分别为10.1%和11.7%;工艺过程的贡献相对较低(3.9%)。
In order to find out the major sources of PM2.5 in Weifang and the differences of contribution of each emission source to PM2.5 between Weifang,inland cities and coastal cities,PM2.5 and its major emission sources samples were collected during four seasons of 2017 in Weifang.The chemical components of samples were analyzed,source composition spectrums and receptor component database were established,and the contributions of major emission sources to PM2.5 were estimated with combined receptor models and emissions amount.The results showed:(1)the mass concentrations of PM2.5 and chemical components were higher in autumn and winter,and lower in spring and summer.(2)On the whole,the results of source apportionment of Weifang were between those of coastal cities and those of inland cities.(3)The refined source apportionment showed that coal burning was the primary source to PM2.5.The contribution of coal burning was 36.0%,among which the contributions of coal-fired power plants,industrial coal and civil coal were respectively 14.4%,18.0% and 3.6%.The contribution of motor vehicle dust was25.4%,among which the contributions of passenger cars,freight cars,and other cars were respectively 6.3%,14.0%and 5.1%.The contribution of soil wind dust and building cement dust were respectively 10.1% and 11.7%in the raise dust.And the contribution of craft process was relatively lower(3.9%).
作者
王斌之
谭金峰
王克全
梁丹妮
刘保双
史旭荣
张文辉
薛倩倩
WANG Binzhi;TAN Jinfeng;WANG Kequan;LIANG Danni;LIU Baoshuang;SHI Xurong;ZHANG Wenhui;XUE Qianqian(Weifang Municipal Environmental Monitoring Center Station,Weifang Shandong 261041;Tianjin Shuangyun Environmental Technology Co.,Ltd.,Tianjin 300350;State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control,College of Environmental Science and Engineering,Nankai University,Tianjin 300350)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2020年第1期23-28,34,共7页
Environmental Pollution & Control
基金
国家自然科学基金资助项目（No.21407081）
关键词
PM2.5
潍坊市
过渡位置
复合受体模型
精细化源解析
PM2.5
Weifang
transition position
combined receptor models
refined source apportionment
