大气颗粒物源解析方法比较分析研究--以乌鲁木齐为例  

Comparative Analysis on Source Apportionment Methods of Atmospheric Particulate Matter——Taking Urumqi as an Example

作　　者：蔺尾燕 邓文叶 祝婕 马俊英 都伟新 LIN Weiyan;DENG Wenye;ZHU Jie;MA Junying;DU Weixin(Xinjiang Academy of Environmental Protection Science, Urumqi, Xinjiang,830011;Xinjiang Key Laboratory for Environmental Pollution Monitoring and Risk Warning, Urumqi, Xinjiang, 830011;Xinjiang Engineering Technology Research center for Cleaner production,Urumqi,Xinjiang, 830011,China)

机构地区：[1]新疆环境保护科学研究院,新疆乌鲁木齐830011 [2]新疆环境污染监控与风险预警重点实验室,新疆乌鲁木齐830011 [3]新疆清洁生产工程技术研究中心,新疆乌鲁木齐830011

出　　处：《新疆环境保护》2020年第3期18-23,共6页Environmental Protection of Xinjiang

基　　金：自治区“天山青年计划”项目《基于稳定同位素技术的和田地区沙尘污染天气空气颗粒物自然来源解析研究》(项目编号:2017Q062);自治区生态厅大气污染防治专项《乌-昌-石地区行业对空气PM2.5的影响研究》(编号:新财建[2019]101号文)。

摘　　要：应用显微镜法、PMF模型、稳定同位素三种源解析方法,对乌鲁木齐典型人群密集区域颗粒物进行溯源解析分析,并比较三种方法的特点及结果。结果表明:利用显微镜法对颗粒进行定性分析,得到乌鲁木齐典型区域颗粒物污染主要为烟尘集合体、燃煤飞灰、矿物颗粒、硝酸盐等;利用PMF进行源解析分析得到颗粒物主要来源于城市扬尘、机动车、工业源及燃烧源及二次颗粒物;利用稳定同位素法进行源解析得到颗粒物主要来源于八钢、石化、电厂、道路、机动车排放。三种方法的结果存在一定差异,显微镜法初步判定区域颗粒物中污染物种类,PMF模型可分析计算不同污染源的贡献率,稳定同位素法进一步分析计算主要污染行业贡献率。A source apportionment study of particulate matter in a typical congestion are a of Urumqi was conducted based on microscope method,PMF model and stable isotope,and the characteristics and results of the three methods were compared respectively.The microscope method was used to analyze the sources of particulate matter qualitatively,and results revealed that the particulate matter pollution of the typical area mainly consists of soot aggregates,coal-combustion fly ash,mineral particles and nitrate.Source apportionment by PMF model identified the main sources of particulate matter were city dust,vehicle emission,industry and burning mix source and secondary particle,in which their contribution rates were 41%,10%,34%,15%,respectively.Source apportionment by stable isotope method revealed that particulate matter mainly came from the emissions of Bagang,Shihua,power plant,road and vehicle exhaust.There were some differences in the results of the three methods.Microscope method primarily identify the types of pollutants in the regional particulate matter.PMF modelanalyzed and calculated the contribution rates of different pollution sources,and the stable isotope method further analyzed and calculated the contribution rate of major pollution industries.

关 键 词：显微镜法 PMF模型 稳定同位素 颗粒物 

分 类 号：X511[环境科学与工程—环境工程]