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
宋镇泽 1牛大伟 2薛爽 3刘盈盈 4耿春梅 4王晓丽 5杨文4
作者信息
- 1. 天津理工大学环境科学与安全工程学院,天津 300384;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
- 2. 漯河市环境监控中心,河南 漯河 462000
- 3. 北京艾若尔环保科技有限公司,北京 102200
- 4. 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
- 5. 天津理工大学环境科学与安全工程学院,天津 300384
- 折叠
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/m3,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1.8 μg/m3,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.
Abstract
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 Com-mission.The average OFP was 348.8 μg/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 1.8 μg/m3,among which aromatic hydrocarbon contrib-uted 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Key words
VOCs/OFP/secondary organic aerosols/source apportionment/Luohe引用本文复制引用
出版年
2024
NETL
NSTL
万方数据