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

High impact of vehicle and solvent emission on the ambient volatile organic compounds in a major city of northwest China
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西北某大城市车辆及溶剂排放对环境挥发性有机物影响较大

DOI:
10.1016/j.cclet.2021.11.013
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发表时间:
2021-11
影响因子:
9.1
通讯作者:
Cao Junji
Cao Junji
中科院分区:
化学1区
文献类型:
--
作者:
Xue Yonggang;Wang Liqin;Liu Suixin;Huang Yu;Chen Long;Cui Long;Cheng Yan;Cao Junji

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通过对西安市典型居民区和商业区大气中挥发性有机物(VOCs)的监测,分析了典型O_3事件期间大气VOCs的主要来源及其对O_3产生的影响。在住宅-商业区,VOCs的日变化受到车辆尾气、燃料蒸发和当地溶剂使用的高度影响。相对较高的贡献(高达60%)的挥发性有机化合物从溶剂的使用,臭氧形成potential. The目前的研究结果强调,迫切需要限制排放的挥发性有机化合物从溶剂的使用和非车辆交通相关的来源,如石油存储。
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.
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