For a crisis of such a magnitude as COVID-19, it seems arguably grotesque to seek out a silver lining. However, it is undeniable that India’s lockdowns in response to the pandemic had a positive impact when it came to air pollution. Five cities with ordinarily high rates of pollution showed a temporary reduction in particulate matter smaller than 2.5 micrometers (PM2.5) of up to 54 percent. The reduction in PM2.5, linked to the ‘anthropogenic emissions switch-off’ that occurred following the COVID-19 lockdown, was observed in a study published in November of last year by Sustainable Cities and Society. The research studied pollution levels between March and May of 2020 across five cities in India. These included Chennai, Delhi, Hyderabad, Kolkata, and Mumbai. Emissions switch-off in India’s cities India regularly dominates global rankings of the most-polluted cities; last year, data compiled in IQAir AirVisual’s 2019 World Air Quality Report identified India as being home to … Read Full Article about COVID-19 lockdowns reduced concentration of air pollutants in Indian cities
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