김종범 우상희 황문세 윤화현 정준식 배귀남 2024-01-20T02:02:02Z 2024-01-20T02:02:02Z 2021-09-06 2017-03 2288-4807 https://pubs.kist.re.kr/handle/201004/122976 Daily operation of urban railways is a major source of large particles affecting PM10 concentration in underground tunnel environments. In this study, temporal variation of PM10 and PM2.5 concentrations were measured using a DustTrak DRX aerosol monitor at the shelter located between adjacent stations on Seoul Metropolitan Railway Line 5. A one-way single tunnel section was chosen to isolate effect of train operation in opposite direction. The monitoring location was about 570 m away from the starting station, where trains traveled at the constant speed. Time-series PM10 and PM2.5 concentrations were categorized by four time periods such as no operation, morning rush-hour, midday, and evening rush-hour periods for both summer and winter. It was found that the train passing caused to increase both PM10 and PM2.5 concentrations shortly. As a result, both PM10 and PM2.5 concentrations were increased steadily during the morning and evening rush-hour periods, on the other hand they remained constantly during the midday period due to the difference in train operation interval. Korean 한국도시철도학회 단선 터널구간에서 전동차 운행에 따른 미세먼지 농도 변화 Change in PM10 Concentration by Train Operation in a Single Tunnel Section Article 10.24284/JKOSUR.2017.03.5.1.743 2 한국도시철도학회논문집, v.5, no.1, pp.743 - 751 한국도시철도학회논문집 5 1 743 751 kci other ART002209061 PM10 PM2.5 Urban railway tunnel Train operation interval