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논문 기본 정보

자료유형
학술저널
저자정보
황규철 (충남연구원) 박세찬 (충남연구원) 이가혜 (충남연구원) 노수진 (대림대학교) 김정호 (미세먼지연구소) 이재영 (아주대학교) 박종성 (국립환경과학원) 김종범 (충남연구원)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제39권 제6호
발행연도
2023.12
수록면
1,007 - 1,021 (15page)
DOI
10.5572/KOSAE.2023.39.6.1007

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초록· 키워드

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In a national effort to enhance air quality, 923 air quality monitoring stations (AQMS) have been set up nationwide. However, AQMS measure only six pollutants (SO₂, NO₂, PM<SUB>10</SUB>, PM<SUB>2.5</SUB>, CO, and O₃). To understand regional PM2.5 traits, it’s effective to analyze its chemical composition. Our research centers on the Chungnam region, where four sites (Pado, Seonghwang, Songsan, and Sagok) conduct near real-time PM<SUB>2.5</SUB> chemical measurements. Using 2021 data, we analyzed annual and seasonal averages for each site. Across these sites, emissions of organic carbon (OC), nitrate (NO₃<SUP>-</SUP>), and sulfate(SO₄<SUP>2-</SUP>) were predominant. SO₄<SUP>2-</SUP> levels rose in summer, while NO₃<SUP>-</SUP> increased in winter, displaying a typical trend. During the study period, three cases of high and low PM<SUB>2.5</SUB> concentrations were selected for back-trajectories analysis. For high concentration cases, ion components exhibited higher proportions, whereas in low concentration cases, the proportion of OC increased, and NO₃<SUP>-</SUP> proportions significantly decreased. To comprehend regional emission characteristics, national emission inventory data was analyzed. While NOx and CO emissions were dominant in most areas, Seonghwang region stood out with VOC emissions predominantly influenced by organic solvents. Chungnam, although currently classified as part of the central region, is actively pursuing air quality enhancement initiatives under a standardized policy framework. Nevertheless, based on the insights gleaned from this study, there is a compelling case for the introduction of region-specific policies to yield more effective outcomes. This underscores the need to tailor air quality improvement strategies according to the unique emission profiles and characteristics of individual regions.

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Abstract
1. 서론
2. 연구 방법
3. 결과 및 고찰
4. 결론
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