DOI: 10.1016/j.atmosenv.2020.117511
论文题名: The impact of volatile organic compounds on ozone formation in the suburban area of Shanghai
作者: Zhang K. ; Li L. ; Huang L. ; Wang Y. ; Huo J. ; Duan Y. ; Wang Y. ; Fu Q.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 232 语种: 英语
英文关键词: Digital subscriber lines
; Emission control
; Hydrocarbons
; Ozone
; Volatile organic compounds
; Control strategies
; Emission reduction
; Meteorological parameters
; On-line measurement
; Photochemical pollution
; Photochemical smog
; Secondary organic aerosols
; Zhejiang Province
; Air pollution
; acetylene
; alkane
; butane
; carbon monoxide
; ethane
; ethylbenzene
; ethylene
; hexane
; isoprene
; nitric oxide
; nitrogen dioxide
; ozone
; para xylene
; propane
; propylene
; sulfur dioxide
; toluene
; volatile organic compound
; aerosol
; emission control
; ozone
; pollutant source
; smog
; suburban area
; urban pollution
; air pollutant
; air pollution control
; Article
; atmospheric pressure
; China
; coping behavior
; flame ionization detection
; humidity
; meteorology
; photolysis
; pollution control
; priority journal
; suburban area
; temperature
; China
; Lake Dianshan
; Shanghai
; Zhejiang
学科: Observation-based model (OBM)
; Ozone formation
; Volatile organic compounds (VOCs)
; Yangtze River Delta
中文摘要: Volatile organic compounds (VOCs) are important precursors of photochemical smog and secondary organic aerosol (SOA). Quantitatively assessing the impact of VOCs on ozone (O3) formation could provide valuable information for the management of emission reduction and photochemical pollution control. In this study, we first figured out the ozone pollution episodes during 2018 at Dianshan Lake (DSL), which is located in the suburban area of Shanghai and is adjacent to three provinces of the YRD region. Then we analyzed continuous variation of O3 precursors and meteorological parameters. The online measurements show that the average volume mixing ratio of total VOCs (TVOC) was 15.41 ± 11.39 ppbv during the ozone pollution episodes, with the largest contribution from alkanes. To further identify the sources of VOCs, VOC concentration-weighted trajectories (CWT) were analyzed, and the results suggested that Zhejiang province could be the most important source region of VOCs at DSL. Analysis using an observation-base model showed that NOx and alkenes exhibited the most significant negative and positive influences on O3 formation, respectively. As for individual species, toluene and isoprene, whose S-weighted concentrations were 6.67 × 10−2 and 5.94 × 10−2 ppbv, respectively, were the key factors promoting the formation of O3 at DSL. To control the increase of O3, considering the policy feasibility, the abatement ratio of VOCs/NOx should be no less than 0.72. The findings advanced our knowledge of VOCs and their impact on O3 formation and will be helpful in formulating emission control strategies for coping with O3 pollution in YRD region. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160321
Appears in Collections: 气候变化与战略
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作者单位: School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China; Key Laboratory of Organic Compound Pollution Control Engineering, Shanghai University, Shanghai, 200444, China; Shanghai Environmental Monitoring Center, Shanghai, 200235, China; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, United States
Recommended Citation:
Zhang K.,Li L.,Huang L.,et al. The impact of volatile organic compounds on ozone formation in the suburban area of Shanghai[J]. Atmospheric Environment,2020-01-01,232