Physicochemical and Toxicological Assessment of Commuter Exposure to Coarse and Fine Particulate Matter (PM) in Subway and Light-rail Systems of the Los Angeles Metro

摘要

Elevated concentrations of particulate matter (PM) have been found in a number of worldwide underground transit systems, with major implications regarding exposure of commuters to PM and its associated health effects. An extensive sampling campaign was conducted in May - August 2010 to assess personal exposure of coarse (2.5μm