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논문 기본 정보

자료유형
학술저널
저자정보
손규원 (아주대학교) 배민아 (아주대학교) 유승희 (아주대학교) 김은혜 (아주대학교) 강윤희 (아주대학교) 배창한 (아주대학교) 김윤하 (아주대학교) 김현철 (메릴랜드대학) 김병욱 (미국조지아주환경청) 김순태 (아주대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제36권 제4호
발행연도
2020.8
수록면
442 - 463 (22page)
DOI
10.5572/KOSAE.2020.36.4.442

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초록· 키워드

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The nation-wide PM<SUB>2.5</SUB> concentration from December 2019 to March 2020 (2019 Winter) in South Korea was observed as low as 24 μg/m³, showing the lowest seasonal mean PM<SUB>2.5</SUB> concentrations for the last five years. Consequently, the PM<SUB>2.5</SUB> concentration during the Seasonal Management has dropped by 26% and 23% compared to those for the same months in 2018 (2018 Winter), and the previous three years (2016~2018), respectively. In this study, the observations and air quality simulations with a set of fixed anthropogenic emissions were incorporated to quantitatively separate the meteorology and emission influences on the PM<SUB>2.5</SUB> change in South Korea during the 2019 Winter. The results show that meteorology and emission-driven influence has decreased the national mean PM<SUB>2.5</SUB> concentrations during the 2019 Winter by 9% and 18%, respectively when compared to the 2018 Winter. On the other hand, the same comparison to PM<SUB>2.5</SUB> concentrations for the previous three years explained approximately 2% increase and 24% drop with meteorology and emission-driven influence, respectively. Monthly mean PM<SUB>2.5</SUB> changes have varied for each month and exhibited the largest drop in February 2020 by 24% when compared to February 2019 (a 27% drop from the previous 3-year mean for the month). It may reflect the abrupt PM<SUB>2.5</SUB>-related emission reductions in Northeast Asia after the COVID-19 pandemic. Air quality simulations with perturbed emissions presented that an increase of South Korean domestic impact and a decrease of foreign emission impact between the 2018 and 2019 Winters. It represents that South Korean domestic efforts to reduce PM<SUB>2.5</SUB> concentrations become more efficient under the meteorology condition during the 2019 Winter.

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Abstract
1. 서론
2. 연구 방법
3. 결과분석
4. 결론
References

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UCI(KEPA) : I410-ECN-0101-2020-539-001125459