漯河市城区秋季VOCs污染特征及来源解析  

Analysis of Pollution Characteristics and Sources of VOCs in Autumn in Urban Area of Luohe City

作　　者：宋镇泽 牛大伟 薛爽 刘盈盈 耿春梅[2] 王晓丽[1] 杨文[2] SONG Zhenze;NIU Dawei;XUE Shuang;LIU Yingying;GENG Chunmei;WANG Xiaoli;YANG Wen(College of Environmental Science&Safety Engineering,Tianjin University of Technology,Tianjin 300384,China;State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;Luohe Environmental Monitoring Center,Luohe 462000,China;Beijing Airuoer Environmental Protection Technology Co.,Ltd.,Beijing 102200,China)

机构地区：[1]天津理工大学环境科学与安全工程学院,天津300384 [2]中国环境科学研究院,环境基准与风险评估国家重点实验室,北京100012 [3]漯河市环境监控中心,河南漯河462000 [4]北京艾若尔环保科技有限公司,北京102200

出　　处：《环境科学与技术》2024年第S01期86-94,共9页Environmental Science & Technology

基　　金：漯河市细颗粒物和臭氧污染协同防控综合解决方案(DQGG202137)。

摘　　要：该文利用2021年11月5-11日漯河市3个市区点位环境挥发性有机物(VOCs)手工采样数据,开展VOCs污染特征和来源解析,识别臭氧生成潜势(OFP)和二次有机气溶胶生成潜势(SOAFP)的关键物种及污染源。结果表明,监测期间漯河市TVOC平均体积分数为51×10^(-9),以OVOCs(36.1%)和烷烃(30.7%)贡献为主,空间变化为三五一五工厂>水利局>卫健委。OFP均值为348.8μg/m^(3),各点位贡献前10物种以芳香烃和OVOCs为主,移动源是贡献最高的排放源;SOAFP均值为1.8μg/m^(3),各点位均为芳香烃贡献最大,移动源是主要贡献源类。正定矩阵因子模型解析结果显示,移动源(25.4%)、油气挥发源(18.9%)、溶剂使用源(18.6%)、工业排放源(17.5%)和燃烧源(15.1%)是市区大气VOCs主要排放源。Using the manual sampling component data of environmental VOCs at three urban points in Luohe City from November 5 to 11,2021,analysis of VOCs pollution characteristics and sources will be carried out to identify key species and pollution sources of ozone generation potential(OFP)and secondary organic aerosol generation potential(SOAFP).The results showed that the average volume fraction of TVOC in Luohe was 51×10^(-9) during the monitoring period,with OVOCs(36.1%)and alkanes(30.7%)contributing the majority,and the spatial variation is 3515 Factory>Water Resources Bureau>Health Commission.The average OFP was 348.8μg/m3,the top ten species were aromatic hydrocarbons and OVOCs,and the mobile source was the highest emission source.The mean value of SOAFP was 1.8μg/m3,among which aromatic hydrocarbon contributed the most at each site,and mobile source was the main contributor.The analytical results of positive definite matrix factor model showed that mobile source(25.4%),oil and gas volatile source(18.9%),solvent use source(18.6%),industrial emission source(17.5%)and combustion source(15.1%)were the main emission sources of urban atmospheric VOCs.

关 键 词：VOCS OFP 二次有机气溶胶 来源解析 漯河 

分 类 号：X511[环境科学与工程—环境工程]