High impact of vehicle and solvent emission on the ambient volatile organic compounds in a major city of northwest China  

作　　者：Yonggang Xue Liqin Wang Suixin Liu Yu Huang Long Chen Long Cui Yan Cheng Junji Cao 

机构地区：[1]State Key Lab of Loess and Quaternary Geology(SKLLQG),Institute of Earth Environment,Chinese Academy of Sciences(CAS),Xi’an 710061,China [2]CAS Center for Excellence in Quaternary Science and Global Change,Xi’an 710061,China [3]Guanzhong Plain Ecological Environment Change and Comprehensive Treatment National Observation and Research Station,Xi’an 710061,China [4]School of Human Settlements and Civil Engineering,Xi’an Jiaotong University,Xi’an 710049,China

出　　处：《Chinese Chemical Letters》2022年第5期2753-2756,共4页中国化学快报（英文版）

基　　金：supported by the National Key Research and Development Program of China(Nos.2017YFC0212200 and 2016YFA0203000);the National Natural Science Foundation of China(Nos.41701565 and 41877308);the Chinese Academy of Sciences“Light of West China”Program(No.XAB2019B06).

摘　　要：Monitoring of ambient volatile organic compounds(VOCs)was conducted within typical residentialcommercial area in the city of Xi’an in northwest China during typical ozone(O_(3))episodes,to investigate the major contributors to the characteristic of ambient VOCs and their impact on O_(3) production.In the residential-commercial area,diurnal variation of VOCs was highly impacted by vehicle exhaust,fuel evaporation,and local solvent use.Relative higher contributions(up to 60%)of VOCs from solvent use to the ozone formation potential were found.The present findings highlight the urgent need for restrictions on the emission of VOCs from solvent use and non-vehicle-traffic-related sources,such as oil storage.

关 键 词：VOCs Vehicle exhaust Fuel evaporation Solvent using Northwest China 

分 类 号：X701[环境科学与工程—环境工程]