Effects of COVID-19 lockdowns on fine particulate matter concentrations.
Hammer MS, van Donkelaar A, Martin RV, McDuffie EE, Lyapustin A, Sayer AM, Hsu NC, Levy RC, Garay MJ, Kalashnikova OV, Kahn RA.
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Sci Adv. 2021 Jun 23;7(26):eabg7670. doi: 10.1126/sciadv.abg7670. Print 2021 Jun.
Sci Adv. 2021.
PMID: 34162552
Free PMC article.