| Title: | "[Ambient VOCs Characteristics, Ozone Formation Potential, and Source Apportionment of Air Pollution in Spring in Zhengzhou]" |
| Author(s): | Ren YJ; Ma SL; Wang SW; Yu SJ; Li YD; Zhang RQ; Yin SS; |
| Address: | "Research Institute of Environmental Science, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China. Environmental Monitoring Center of Henan Province, Zhengzhou 450003, China" |
| DOI: | 10.13227/j.hjkx.201911081 |
| ISSN/ISBN: | 0250-3301 (Print) 0250-3301 (Linking) |
| Abstract: | "Ambient volatile organic compounds (VOCs) were determined by GC 5000 online gas chromatography in the urban site of Zhengzhou from April 15 to May 15, 2018. Based on chemical composition analysis, in this study, the concentrations, ozone formation potential (OFP), and source apportionment were studied. The results show that the averaged volume fraction of VOCs in Zhengzhou during spring was 40.26x10(-9), which was 23% higher on polluted days (44.12x10(-9)) than on non-polluted days (35.82x10(-9)). The contribution of VOC species to OFP was in the order: alkenes > aromatics > alkanes > alkyne. The five factors identified by the PMF model were liquefied petroleum gas (LPG) volatilization sources (66.05%), motor vehicle exhaust sources (47.39%), industrial solvent sources (37.51%), fuel combustion sources (37.80%), and biogenic sources (11.25%). The contributions of LPG volatilization sources and biogenic sources on polluted days were higher by 22.92% and 68.50% than on non-polluted days, respectively" |
| Keywords: | ozone ozone formation potential (OFP) positive matrix factorization (PMF) spring volatile organic compounds (VOCs); |
| Notes: | "PubMed-not-MEDLINERen, Yi-Jun Ma, Shuang-Liang Wang, Si-Wei Yu, Shi-Jie Li, Yi-Dan Zhang, Rui-Qin Yin, Sha-Sha chi English Abstract China 2020/07/02 Huan Jing Ke Xue. 2020 Jun 8; 41(6):2577-2585. doi: 10.13227/j.hjkx.201911081" |
