Study found highly elevated PM2.5 in pre-COVID-19 subway air in NE US; NYC the worst
Green Car Congress
FEBRUARY 11, 2021
concentrations across these subway systems in the major urban centers of Northeastern United States during rush hours. Concentration and Composition in Subway Systems in the Northeastern United States” Environmental Health Perspectives 129:2 doi: 10.1289/EHP7202. The researchers found an elevation in the PM 2.5
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