Enhanced VOC emission with increased temperature contributes to the shift of O_(3)-precursors relationship and optimal control strategy  

作　　者：Fangqi Qu Yuanjie Huang Yemin Shen Genqiang Zhong Yan Xu Lingling Jin Hongtao Qian Chun Xiong Fei Zhang Jiasi Shen Bingye Xu Xudong Tian Zhengning Xu Zhibin Wang 

机构地区：[1]Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control,MOE Key Laboratory of Environment Remediation and Ecological Health,College of Environmental and Resource Sciences,Zhejiang University,Hangzhou 310058,China [2]ZJU-Hangzhou Global Scientific and Technological Innovation Center,Zhejiang University,Hangzhou 311215,China [3]Jiaxing Ecological and Environment Bureau Tongxiang Branch,Tongxiang 314500,China [4]Zhejiang Ecological and Environmental Monitoring Center,Hangzhou 310012,China [5]Zhejiang Key Laboratory of Ecological and Environmental Monitoring,Forewarning and Quality Control,Hangzhou 310058,China

出　　处：《Journal of Environmental Sciences》2025年第4期218-229,共12页环境科学学报(英文版)

基　　金：supported by the National Natural Science Foundation of China(Nos.42005086,91844301,and 41805100);the National Key Research and Development Programof China(No.2022YFC3703500);China Postdoctoral Science Foundation(No.2023M733028);the Key Research and Development Program of Zhejiang Province(Nos.2021C03165 and 2022C03084);the Ecological and Environmental Scientific Research and Achievement Promotion Project of Zhejiang Province(No.2020HT0048).

摘　　要：Assessing the impact of anthropogenic volatile organic compounds(VOCs)on ozone(O_(3))formation is vital for themanagement of emission reduction and pollution control.Continuousmeasurement of O_(3)and the major precursorswas conducted in a typical light industrial city in the YRD region from 1 May to 25 July in 2021.Alkanes were the most abundant VOC group,contributing to 55.0%of TVOCs concentration(56.43±21.10 ppb).OVOCs,aromatics,halides,alkenes,and alkynes contributed 18.7%,9.6%,9.3%,5.2%and 1.9%,respectively.The observational site shifted from a typical VOC control regime to a mixed regime from May to July,which can be explained by the significant increase of RO_(x)production,resulting in the transition of environment from NOx saturation to radical saturation with respect to O_(3)production.The optimal O_(3)control strategy should be dynamically changed depending on the transition of control regime.Under NOx saturation condition,minimizing the proportion of NOx in reduction could lead to better achievement of O_(3)alleviation.Under mixed control regime,the cut percentage gets the top priority for the effectiveness of O_(3)control.Five VOCs sources were identified:temperature dependent source(28.1%),vehicular exhausts(19.9%),petrochemical industries(7.2%),solvent&gasoline usage(32.3%)and manufacturing industries(12.6%).The increase of temperature and radiation would enhance the evaporation related VOC emissions,resulting in the increase of VOC concentration and the change of RO_(x)circulation.Our results highlight determination of the optimal control strategies for O_(3)pollution in a typical YRD industrial city.

关 键 词：O_(3)pollution Volatile organic compounds Photochemical box model Source apportionment Optimal O_(3)control strategies 

分 类 号：F42[经济管理—产业经济]