There has been a “drastic drop” in air pollution for these major cities under lockdown.
Key Points
New Delhi recorded a 60% fall of PM2.5 compared with 2019 levels, Seoul registered a 54% drop, while the fall in China's Wuhan came in at 44%. New Delhi recorded a 60% fall of PM2.5 from 2019 levels, Seoul registered a 54% drop, while the fall in China's Wuhan came in at 44%. Major cities with historically higher levels of deadly air pollutants witnessed the most substantial drop in PM2.5, the analysis found.PM2.5 is smaller than 2.5 micrometers in diameter and is widely regarded as the pollutant that poses the greatest threat to health of all commonly measured air pollutants.
South Korean soldiers wearing protective gear walk on a street in front of the city hall after the rapid rise in confirmed cases of the novel coronavirus disease of in Daegu, southeast of the capital Seoul, South Korea, March 2, 2020.The Covid-19 outbreak has meant countries around the world have effectively had to shut down, with many governments imposing draconian restrictions on the daily lives of billions of people.
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