York study: Less traffic in first UK lockdown reduced NO2 pollution but caused increase in surface ozone
Green Car Congress
DECEMBER 27, 2020
Less traffic on the roads during the first COVID-19 lockdown in the UK led to a reduction in air pollution but may have caused potentially damaging surface ozone levels to rise, according to a new study led by researchers at the University of York. The open-access study, published in the journal Atmospheric Chemistry and Physics , shows levels of nitrogen dioxide (NO 2 ) down on average across the UK by 42%—but surface ozone (O 3 ) increased by 11% on average.
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