宝鸡市秋季大气VOCs污染特征及来源解析研究  

Characteristics and Source Analysis of Atmospheric VOCs Pollution in Baoji City in Autumn

作　　者：薛平 黄敏 王晓利 徐晨曦 万红莲[2] XUE Ping;HUANG Min;WANG Xiao-li;XU Chen-xi;WAN Hong-lian(Ecological Environment Centre of Baoji High-tech Industrial Development Zone,Baoji 721006,China;College of Geography and Environment,Baoji University of Arts and Sciences,Baoji 721013,China)

机构地区：[1]宝鸡高新技术产业开发区生态环境中心,陕西宝鸡721006 [2]宝鸡文理学院地理与环境学院,陕西宝鸡721013

出　　处：《江西农业学报》2022年第9期146-150,共5页Acta Agriculturae Jiangxi

基　　金：教育部人文社会科学研究规划基金项目(18YJA810004);陕西省科技厅软科学研究计划项目(2022KRM028);陕西省哲学社会科学基金(2020E009)。

摘　　要：采用2020年9—11月宝鸡市环境监测点采集的空气中VOCs样品数据,对宝鸡市大气VOCs质量浓度、特征化学成分、臭氧生成潜势及来源进行了分析。结果表明:宝鸡市VOCs平均体积分数为58.49×10^(-9)其含量较为丰富的挥发性有机物以OVOCs和烷烃为主,所占比例分别为42.12%、21.80%。OFP计算表明,最大贡献度来自OVOCs、烯烃和芳香烃。源解析表明,生物质燃烧/燃煤源、交通排放源、工业和溶剂挥发源、二次生成源和石油化工源为宝鸡市秋季VOCs的主要贡献源。The data of airborne VOCs samples collected from monitoring points in Baoji from September to November 2020 were used to analyze the mass concentration of atmospheric VOCs,characteristic chemical composition,ozone formation potential and their source analysis in Baoji.The results showed that the average volume fraction of VOCs in Baoji City was 58.49×10^(-9),and the most abundant volatile organic compounds were OVOCs and alkanes,accounting for 42.12%and 21.80%,respectively.OFP calculations indicated that the largest contributions were from OVOCs,olefins and aromatic hydrocarbons.Source analysis showed that biomass combustion/coal burning sources,traffic emission sources,industrial and solvent volatilization sources,secondary generation sources and petrochemical sources were the main contributing sources of VOCs in Baoji in autumn.

关 键 词：挥发性有机物 生成潜势 源解析 宝鸡市 

分 类 号：X823[环境科学与工程—环境工程]