Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up
Green Car Congress
MAY 12, 2020
The week of Chinese New Year holiday is indicated by the red lantern shown inset panels (b) and (h). They found that nitrogen dioxide pollution decreased by an average of 40% over Chinese cities and by 20% to 38% over Western Europe and the United States during the 2020 lockdown, as compared to the same time in 2019. van Gent, J.,
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