开封大气扬尘颗粒物的来源解析  

Source apportionment of urban suspended dust in Kaifeng

作　　者：王晓东 王平[2,3] WANG Xiaodong;WANG Ping(Kaifeng Environmental Monitoring Station,Kaifeng 475000,China;Key Laboratory of Aerosol Chemistry and Physics,Chinese Academy of Sciences,Xi’an 710061,China;College of Ecological and Environmental Protection,Hainan Tropical Ocean University,Sanya 572022,China)

机构地区：[1]开封市环境监测站,河南开封475000 [2]中国科学院气溶胶化学与物理重点实验室,陕西西安710061 [3]海南热带海洋学院生态环境保护学院,海南三亚572022

出　　处：《中国粉体技术》2020年第4期74-80,共7页China Powder Science and Technology

基　　金：国家自然科学基金项目,编号:41867046。

摘　　要：为了解析河南省开封市大气扬尘颗粒物的来源,对开封市的扬尘源成分谱和大气颗粒物PM10进行采样,提取城市扬尘源中各单一源类的标识物,分析PM10化学组分,应用化学质量平衡模型(CMB)和二重源解析技术进行定性和定量分析。结果表明:开封市PM10污染严重,主要是城市扬尘,对环境空气中颗粒物的贡献在27.7%,是首要污染因素;二次颗粒物对PM10的贡献率达到26.92%;汽车尾气尘对PM10的贡献率在11.29%。In order to analyze the source of airborne dust particles in Kaifeng city,Henan province,the paper mainly focuses on the composition spectrum of the dust source and the atmospheric particulate matter PM10 sampling.The markers of each single source in the urban dust source were extracted,and the chemical components of PM10 were analyzed.The chemical mass balance(CMB)model and the improved source apportionment technique were used to characterize.The results show that the PM10 pollution in Kaifeng city is serious,which is mainly caused by urban dust.The contribution rate of secondary particles to PM10 is 26.92%.The contribution rate of vehicle exhaust dust to PM10 is 11.29%.

关 键 词：开封 大气扬尘 PM10 化学质量平衡模型 二重源解析技术 

分 类 号：TB4[一般工业技术] X513[环境科学与工程—环境工程]