| Title: | "Source, temporal variation and health risk of volatile organic compounds (VOCs) from urban traffic in harbin, China" |
| Author(s): | Xuan L; Ma Y; Xing Y; Meng Q; Song J; Chen T; Wang H; Wang P; Zhang Y; Gao P; |
| Address: | "School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, PR China. Heilongjiang Province Environmental Monitoring Center, Harbin, 150090, PR China. School of Geography and Planning, Sun Yat-sen University, Guangzhou, 510275, PR China. Guangdong Provincial Field Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, 510275, PR China. Guangdong Provincial Field Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, 510275, PR China. Electronic address: gaopeng8@mail.sysu.edu.cn" |
| DOI: | 10.1016/j.envpol.2020.116074 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| Abstract: | "The main of this work investigated the levels, emission sources, and associated health risks of ambient volatile organic compounds (VOCs) closed urban traffic trunk from June 2017 to November 2018. The seasonal variation trend for total VOCs (TVOCs) concentrations was autumn > winter > summer > spring. During the daily fluctuations in summer, the TVOC concentrations appeared to be the highest at midnight and the lowest at 14:00. In spring, autumn, and winter, the concentrations of TVOCs reached the highest levels at 06:00 and dropped to the lowest levels at 14:00 to 15:00; then, the levels increased after 20:00. Aromatics were the most important types of ambient VOCs for the formation of secondary organic aerosols (SOAs). The Positive Matrix Factorization (PMF) source analysis indicated that the traffic emission accounted for 28.9% of TVOCs, followed by combustion (24.7%), industrial (21.3%), gasoline volatilization (12.4%), and solvent (11.7%) sources. Carcinogenic and non-carcinogenic risks via inhalation exposure to the selected 10 toxic VOCs may be of more concern for residents nearby traffic trunk in Harbin in autumn" |
| Keywords: | *Air Pollutants/analysis China Environmental Monitoring Vehicle Emissions/analysis *Volatile Organic Compounds/analysis Health risk Ozone forming potential PMF source Apportionment Traffic trunk VOCs Vehicle exhaust; |
| Notes: | "MedlineXuan, Lichun Ma, Yuenan Xing, Yanfeng Meng, Qingqing Song, Jie Chen, Taihan Wang, Hao Wang, Pengjie Zhang, Yufan Gao, Peng eng England 2020/11/23 Environ Pollut. 2021 Feb 1; 270:116074. doi: 10.1016/j.envpol.2020.116074. Epub 2020 Nov 12" |
