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논문 기본 정보

자료유형
학술저널
저자정보
김지수 (서울대학교 보건대학원 환경보건학과) 곽수영 (서울대학교) 이기영 (서울대학교)
저널정보
한국환경보건학회 한국환경보건학회지 한국환경보건학회지 제50권 제4호
발행연도
2024.8
수록면
257 - 266 (10page)

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초록· 키워드

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Background: Exposure to fine particulate matter (PM2.5) and ozone (O ) poses potential health risks. The 3 Indoor-to-Outdoor ratio (I/O ratio) is a valuable tool for understanding indoor air quality and identifying potential indoor sources. Objectives: The objective of this study was to determine I/O ratios of PM2.5 and O by different 3 microenvironments and seasons in Korea. Methods: From December 2021 to November 2023, indoor concentrations of PM2.5 and O were monitored 3 3 3 every hour in 13 microenvironments (residential indoor, office, school, restaurant, pub, café, study café, private educational institute, PC room, billiard room, screen golf center, supermarket, and shopping mall) in Korea. Hourly outdoor concentrations of PM2.5 and O were obtained from local air quality monitoring stations, provided by airkorea.or.kr. The hourly I/O ratio was calculated by the indoor and outdoor concentrations. Results: At the pub, billiard room, and PC room, the median PM2.5 I/O ratio exceeded 1 in all seasons, except in spring at the PC room (0.9), suggesting indoor smoking as a potential cause. The median PM2.5 I/O ratio at the restaurant exceeded 1 in winter, autumn, and summer, except for spring (0.9), indicating signif icant PM2.5 emission sources in the restaurant. The median O I/O ratio was below 0.5 in all seasons and 3 microenvironments. Conclusions: This study provided useful data on relationships between indoor and outdoor pollution in various microenvironments by seasons. These I/O ratios could be applied for more accurate exposure assessment to protect health of human.

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