Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up
Green Car Congress
MAY 12, 2020
For comparison, columns over the same time periods are shown for 2019. Stavrakou and her colleagues used satellite measurements of air quality to estimate the changes in nitrogen dioxide pollution over the major epicenters of the outbreak: China, South Korea, Italy, Spain, France, Germany, Iran and the United States.
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