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자료유형
학술저널
저자정보
권용범 (한국생산기술연구원)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제39권 제5호
발행연도
2023.10
수록면
675 - 695 (21page)
DOI
10.5572/KOSAE.2023.39.5.675

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This study aims to investigate the potential relations affecting indoor air quality (IAQ) of underground subway platforms based on the hourly PM<SUB>2.5</SUB> monitoring data from subway platforms and air quality monitoring station (AQMS) as well as passenger statistics in 2022. Among more than 250 subway stations in lines 1 to 8 of Seoul subway, (1)-Jonggak; (2)-Euljiro1(il)-ga; (3)-Irwon; (4)-Mia; (5)-Gwangnaru; (6)-Beotigogae; (7)-Suraksan; (8)-Songpa were targeted recording the highest annual PM<SUB>2.5</SUB> level in each line. PM<SUB>2.5</SUB> in the underground subway platforms generally showed a significant correlation with the number of passengers by frequent train services during the station operation time, and thus higher-level of PM<SUB>2.5</SUB> was observed during rush hours. Otherwise, the influence of ambient air to subway platform IAQ was more predominant in the station closing time. Eventually, the variation of PM<SUB>2.5</SUB> level in the underground subway platform was mainly determined following the degree of correlation with internal (train frequency and passenger) and external (outdoor air quality) influence factors as temporal variations. In case of specific period such as the highest indoor PM<SUB>2.5</SUB> day and the largest passenger day, the correlations between platform PM<SUB>2.5</SUB> and passenger were increased about 46~3% and 13~78%, respectively than the normal period. For high-level PM<SUB>2.5</SUB> (PM<SUB>2.5</SUB> warning) period, indoor PM<SUB>2.5</SUB> level was raised up to 85% comparing normal period. This aspect was also similar on seasonal variations case, because seasonal mean PM<SUB>2.5</SUB> levels in the subway platform showed parallel trend with seasonal mean outdoor air qualities. Therefore, this study would be useful to confirm characteristics of PM<SUB>2.5</SUB> variations in the underground subway platform for further subway IAQ management.

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