Characterization and sources of volatile organic compounds (VOCs) and their related changes during ozone pollution days in 2016 in Beijing, China

2020 ◽  
Vol 257 ◽  
pp. 113599 ◽  
Author(s):  
Yafei Liu ◽  
Mengdi Song ◽  
Xingang Liu ◽  
Yuepeng Zhang ◽  
Lirong Hui ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Ozone Pollution ◽  
Volatile Organic ◽  
Beijing China

scholarly journals Petrochemical and Industrial Sources of Volatile Organic Compounds Analyzed via Regional Wind-Driven Network in Shanghai

Atmosphere ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 760 ◽  
Author(s):  
Wanyi Qiu ◽  
Shule Li ◽  
Yuhan Liu ◽  
Keding Lu
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Surface Ozone ◽  
Industrial Area ◽  
Ozone Pollution ◽  
Regional Network ◽  
Local Circulation ◽  
Near Surface ◽  
Secondary Pollutants ◽  
Volatile Organic

Due to the development of industrialization and urbanization, secondary pollution is becoming increasingly serious in the Yangtze River Delta. Volatile organic compounds (VOCs) are key precursors of the near-surface ozone, secondary organic aerosol (SOA), and other secondary pollutants. In this study, we chose a serious ozone pollution period (01 May–31 July 2017) in Jinshan, which is a petrochemical and industrial area in Shanghai. We explored the VOCs distribution characteristics and contribution to secondary pollutants via constructing a regional network based on wind patterns. We determined that dense pollutants were accumulated at adjacent sites under local circulation (LC), and pollution from petrochemical discharge was more serious than industry for all sites under southeast (SE) wind. We also found that cyclopentane, o-xylene, m/p-xylene, 1-3-butadiene, and 1-hexene were priority-controlled species as they were most vital to form secondary pollutants. This study proves that regional network analysis can be successfully applied to explore pollution characteristics and regional secondary pollutants formation.

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