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- W3102906970 abstract "This study was performed to evaluate spatial and temporal variations of PM10 and PM2.5 levels in Busan’s subway system between 2015 and 2019. In order to understand the effect of outdoor PM (PM10 and PM2.5) on the PM levels in underground subway stations, this study analyzed the data obtained from the air quality monitoring stations around subway stations was also performed. This study found that the average PM10 and PM2.5 levels in the underground subway stations decreased continuously during the period of observation. In the case of Seomyeon station, the concentrations of PM10 and PM2.5 in the platform of line number 1 were higher than those in the platform of line number 2 due to the depth of the platform and the number of passengers. There was no significant difference between the PM2.5/PM10 ratios in the waiting rooms and in platforms. In addition, when we compared the PM10 and PM2.5 levels by the operating time of subway system, the level of PM10 concentrations measured during the operation time was higher than that measured during the non-operation time. However, in the case of PM2.5, the data showed that there was no significant difference between the operation and nonoperation periods. Finally, this study found that the variation of PM10 and PM2.5 levels in the underground subway stations is similar to that in the surrounding atmosphere." @default.
- W3102906970 created "2020-11-23" @default.
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- W3102906970 date "2020-10-31" @default.
- W3102906970 modified "2023-10-18" @default.
- W3102906970 title "Spatial-temporal Characteristics of Particulate Matter in Busan’s Subway Systems" @default.
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- W3102906970 doi "https://doi.org/10.5572/kosae.2020.36.5.589" @default.
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