| Title: | Characterization of volatile organic compounds and the impacts on the regional ozone at an international airport |
| Author(s): | Yang X; Cheng S; Wang G; Xu R; Wang X; Zhang H; Chen G; |
| Address: | "Key Laboratory of Beijing on Regional Air Pollution Control, Beijing University of Technology, Beijing, 100124, China. Key Laboratory of Beijing on Regional Air Pollution Control, Beijing University of Technology, Beijing, 100124, China; Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, China. Electronic address: chengsy@bjut.edu.cn. National Meteorological Center of CMA, Beijing, 100081, China" |
| DOI: | 10.1016/j.envpol.2018.03.073 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| Abstract: | "In this study, the measurement of volatile organic compounds (VOCs) was conducted at Beijing Capital International Airport (ZBAA) and a background reference site in four seasons of 2015. Total concentrations of VOCs were 72.6?ª++/-?ª+9.7, 65.5?ª++/-?ª+8.7, 95.8?ª++/-?ª+11.0, and 79.2?ª++/-?ª+10.8?ª+mug/m(3) in winter, spring, summer, and autumn, respectively. The most abundant specie was toluene (10.1%-17.4%), followed by benzene, ethane, isopentane, ethane, acetylene, and n-butane. Seasonal variations of VOCs were analyzed, and it was found that the highest concentration occurring in summer, while the lowest in spring. For the diurnal variation, the concentration of VOCs in the daytime (9:00-15:00) was less than that at night (15:00-21:00) obviously. Ozone Formation Potential (OFP) was calculated by using Maximum Incremental Reactivity (MIR) method. The greatest contribution to OFP from alkenes and aromatics, which accounted for 27.3%-51.2% and 36.6%-58.6% of the total OFP. The WRF-CMAQ model was used to simulate the impact of airport emissions on the surrounding area. The results indicated that the maximum impact of VOCs emissions and all sources emissions at the airport on O(3) was 0.035 and -23.8?ª+mug/m(3), respectively. Meanwhile, within 1?ª+km from the airport, the concentration of O(3) around the airport was greatly affected by airport emitted" |
| Keywords: | Air Pollutants/*analysis *Airports Alkenes/analysis Beijing Benzene/analysis Butanes/analysis China *Environmental Monitoring Ozone/*analysis Pentanes/analysis Toluene/analysis Volatile Organic Compounds/analysis Beijing capital international airport Ozon; |
| Notes: | "MedlineYang, Xiaowen Cheng, Shuiyuan Wang, Gang Xu, Ran Wang, Xiaoqi Zhang, Hanyu Chen, Guolei eng England 2018/04/01 Environ Pollut. 2018 Jul; 238:491-499. doi: 10.1016/j.envpol.2018.03.073. Epub 2018 Mar 30" |
