Decline in PM2.5 concentrations over major cities around the world associated with COVID-19
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DOI: 10.1016/j.envres.2020.109634
Abstract: Abstract The COVID-19 started from Wuhan city in China, slowly spread across the globe after December 2019. Due to movement of people from one city to other cities, one country to other countries, infection spreads… read more here.
Keywords: major cities; decline pm2; around world;