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논문 기본 정보

자료유형
학술저널
저자정보
이은선 (경희대학교) 박민빈 (경희대학교) 이태정 (경희대학교) 김신도 (서울시립대학교) 박덕신 (한국철도기술연구원) 김동술 (경희대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제32권 제2호
발행연도
2016.4
수록면
216 - 232 (17page)

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In present, the Seoul City is undergoing traffic congestion problems caused by rapid urbanization and population growth. Thus the City government has reorganized the mass transportation system since 2004 and the subway has become a very important means for public transit. Since the subway system is typically a closed environment, the indoor air quality issues have often raised by the public. Especially since a huge amount of PM (particulate matter) is emitted from ground tunnels passing through the subway train, it is now necessary to assess the characteristics and behaviors of fine PM inside the tunnel.
In this study, the concentration patterns of PM₁, PM<SUB>2.5</SUB>, and PM<SUB>10</SUB> in the Seoul subway line-2 were analyzed by real-time measurement during winter (Jan 13, 2015) and summer (Aug 7, 2015). The line-2 consisting of 51 stations is the most busy circular line in Seoul having the railway of 60.2 km length. The the one-day average PM<SUB>10</SUB> concentrations were 148 μg/㎥ in winter and 66.3 μg/㎥ in summer and PM<SUB>2.5</SUB> concentrations were 118 μg/㎥ and 58.5 μg/㎥, respectively. The PM<SUB>2.5</SUB> /PM<SUB>10</SUB> ratio in the underground tunnel was lower than the outdoor ratio and also the ratio in summer is higher than in winter. Further the study examined structural types of underground subsections to explain the patterns of elevated PM concentrations in the line-2. The subsections showing high PM concentration have longer track, shorter curvature radius, and farther from the outdoor stations. We also estimated the outdoor PM concentrations near each station by a spatial statistical analysis using the PM<SUB>10</SUB> data obtained from the 40 Seoul Monitoring Sites, and further we calculated PM<SUB>2.5</SUB> /PM<SUB>10</SUB> and PM1/PM<SUB>10</SUB> mass ratios near the outdoor subway stations by using our observed outdoor PM₁, PM<SUB>2.5</SUB>, and PM<SUB>10</SUB> data. Finally, we could develop pollution maps for outdoor PM₁ and PM<SUB>2.5</SUB> near the line-2 by using the kriging method in spatial analysis. This methodology may help to utilize existing PM<SUB>10</SUB> database when managing and control fine particle problems in Korea.

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Abstract
1. 서론
2. 연구 방법
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2016-539-002902042