Study: no one knows which city has the highest concentration of PM2.5
Green Car Congress
AUGUST 23, 2019
is the leading global environmental risk factor for mortality and disease burden, with associated annual global welfare costs of trillions of dollars, However, no one knows what city has the highest level of the pollution. Exposure to ambient PM 2.5 levels—have no monitoring at all. —Martin et al. 2019.100040.
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