Investigation of Particulate Matter within Subway Station Environments Published ―Decision to Convene Symposium to Consider Subway Environments―
January 21, 2019
As the first stage of an industry-academia collaboration project aiming to facilitate "subways with the world’s cleanest air," MANN+HUMMEL Japan Ltd. (M+H) and Keio University Faculty of Science and Technology published field study results covering PM2.5 particulate matter inside a subway station. According to these results, the concentration of PM2.5 in the subway platform air reached a maximum of about 5 times higher than that of aboveground levels. The concentration of iron contained in the particles when compared with those aboveground in particular was extremely high, at over 200 times the aboveground levels. The outcomes of this research were published in the January 10 (Thurs.), 2019 issue of the academic journal "Journal of Japan Society for Atmospheric Environment."
Furthermore, based on the results of this study, the Keio University Faculty of Science and Technology has decided to hold a symposium to consider subway environments in cooperation with the Japan Association of Aerosol Science and Technology on May 18 (Sat.), 2019 at Keio University Hiyoshi Campus.