| Title: | Source apportionment of VOCs and their impact on air quality and health in the megacity of Seoul |
| Author(s): | Song SK; Shon ZH; Kang YH; Kim KH; Han SB; Kang M; Bang JH; Oh I; |
| Address: | "Department of Earth and Marine Sciences, Jeju National University, Jeju, 63243, Republic of Korea. Department of Environmental Engineering, Dong-Eui University, Busan, 47340, Republic of Korea. Electronic address: zangho@deu.ac.kr. The Institute of Environmental Studies, Pusan National University, Busan, 46241, Republic of Korea. Department of Civil & Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea. Department of Environmental Engineering, Dong-Eui University, Busan, 47340, Republic of Korea. Environmental Health Center, University of Ulsan College of Medicine, Ulsan, 44033, Republic of Korea" |
| DOI: | 10.1016/j.envpol.2019.01.102 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| Abstract: | "The source apportionment of volatile organic compounds (VOCs) was examined using receptor models (positive matrix factorization and chemical mass balance) and a chemical transport model (CTM). The receptor model-based analysis was performed using the datasets collected from four different sites from the megacity of Seoul during the years 2013-2015. The contributions of VOC emission sources to ozone (O(3)) and PM(2.5) concentrations and the subsequent health effects in the study area were also assessed during a photochemically active period (June 2015) using a three-dimensional CTM, Community Multi-scale Air Quality (CMAQ), and the Environmental Benefits Mapping and Analysis Program (BenMAP). The solvent use and the on-road mobile emission sources were found to exert dominant controls on the VOC levels observed in the target city. VOCs transported from regions outside of Seoul accounted for a significant proportion (up to approximately 35%) of ambient VOC levels during the study period. The solvent use accounted for 3.4% of the ambient O(3) concentrations during the day (daily mean of 2.6%) and made insignificant contributions to PM(2.5) (<1%) during the simulation period. Biogenic VOC made insignificant contributions to O(3) (<1%) and a small contribution to PM(2.5) during the day (5.6% with a daily mean of 2.4%). The number of premature deaths attributed indirectly (O(3) and PM(2.5) formations via the oxidation of VOCs) to solvent use is expected to be significant" |
| Keywords: | Air Pollutants/*analysis Air Pollution/analysis/*statistics & numerical data Cities Environmental Exposure/*analysis/statistics & numerical data Environmental Monitoring/methods Ozone/analysis Particulate Matter/analysis Seoul Volatile Organic Compounds/*; |
| Notes: | "MedlineSong, Sang-Keun Shon, Zang-Ho Kang, Yoon-Hee Kim, Ki-Hyun Han, Seung-Beom Kang, Minsung Bang, Jin-Hee Oh, Inbo eng England 2019/02/06 Environ Pollut. 2019 Apr; 247:763-774. doi: 10.1016/j.envpol.2019.01.102. Epub 2019 Jan 29" |
