Updated Harvard research still finds significant correlation between PM2.5 and COVID-19 mortality. "increase of only 1 𝜇g/m3 in PM2.5 is associated with an 8% increase in the COVID-19 death rate." Heating oil is major PM2.5 source in NYC... https://projects.iq.harvard.edu/covid-pm pic.twitter.com/sWnNioKWIA
11:30 AM - 30 Apr 2020
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