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 in some subway stations suggest that transit workers and commuters may be at increased risk according to US federal environmental and occupational guidelines, depending on duration of exposure. By comparison, aboveground air concentrations for all measured cities averaged just 16 ?g/m g/m 3 , followed by Boston at 140 ?g/m
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