2019/01/11
Keio University
The Keio University Faculty of Science and Technology and MANN+HUMMEL JAPAN Ltd. (M+H) have published the results of a field survey on particulate matter such as PM 2.5 in subway stations as the first stage of an industry-academia collaboration project aiming for "the world's cleanest subway air." According to the results, the concentration of airborne PM 2.5 inside subway stations reached a maximum of approximately five times that of above ground, and the concentration of iron in the particles was extremely high, more than 200 times that of above ground. These research findings were published on Thursday, January 10, 2019, in the academic journal "Journal of Japan Society for Atmospheric Environment."
Furthermore, based on these survey results, the Keio University Faculty of Science and Technology, in cooperation with the Japan Association of Aerosol Science and Technology, has decided to hold a symposium to consider the subway environment on Saturday, May 18, 2019, at the Keio University Hiyoshi Campus.
For the full press release, please see below.