| Characteristics of the Concentration Variations and Air Mass Routes during the High-concentration Events of Particulate Matter in the Jeju Area in 2016 |
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Su-Mi Kim1, Myeong-Chan Kim2, Kil-Seong Kim1, Ki-Ho Lee2 |
1Air Environmental Division, Jeju Special Self-Governing Province Research Institute of Health & Environment, Jeju, 63142, Korea
2Department of Environmental Engineering, Jeju National University, Jeju, 63243, Korea |
| 2016년 제주지역 미세먼지의 농도 변화와 고농도 사례일의 기류이동 특성 |
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김수미1, 김명찬2, 김길성1, 이기호2 |
1제주특별자치도보건환경연구원 대기환경과
2제주대학교 환경공학과 |
Correspondence:
Ki-Ho Lee, Tel: 82-064-754-3445, Fax: 82-064-725-2483,
Email: leekiho@jejunu.ac.kr
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Received: 10 April 2019 • Revised: 17 May 2019 • Accepted: 19 June 2019 |
| Abstract |
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This study investigates the concentration levels of PM10 and PM2.5 in the Jeju area in 2016 and the inflow routes of air masses during the high particulate matter concentration events (high-PM events) that occurred in the Jeju area using Hybrid Single Particle Lagrangian Intergrated Trajectory Model. The hourly mass concentrations of PM10 and PM2.5 in 2016 were obtained from three air pollution monitoring sites (Yeondong, Ido, and Donghong) in the Jeju Island. The average PM10 and PM2.5 concentrations at the three sites were 41.5, 45.7, and 36.4 μg/m3 for PM10 and 24.2, 23.2, and 18.5 μg/m3 for PM2.5, respectively. Statistically significant differences (p<0.001) were observed between the PM concentrations at the northern (Yeondong and Ido) and southern (Donghong) parts of Mt. Halla. The PM10 and PM2.5 concentrations were simultaneously increased during the high-PM events in the winter season. Furthermore, a time lag was observed between the PM concentrations at the northern and southern parts of Mt. Halla during the high-PM events. A backward trajectory cluster analysis was performed to analyze the effects of the inflow air mass on the air quality of the Jeju area during the high-concentration events of PM10 and PM2.5. The increase in PM2.5 concentrations for the high-PM events, except for the Asian dust events, was mainly influenced by the air masses transported from the eastern and northeastern areas of China. |
| Key Words:
PM10, PM2.5, episode, HYSPLIT, Jeju |
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