Study On Effect Of Coronavirus Lockdowns Shows Unprecedented Reduction In Air Pollution

GOLDACH, Switzerland, April 21, 2020 /PRNewswire/ -- IQAir (www.iqair.com), a global leader in air quality data and solutions, today published the COVID-19 Air Quality Report that shows that air pollution levels in 10 major global cities have dropped 9 to 60 percent, during...

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