Unintended lockdown benefit: Study says PM 2.5 down by over 50% in Delhi, Gurgaon, Noida, Ghaziabad
India | Apr 11, 2020, 08:53 PM ISTThe pollution level in India’s five most-polluted cities, which are also in the top 10 globally, came down by over 50 per cent during the first 10 days of the lockdown imposed to combat COVID-19 outbreak, a new Greenpeace India analysis has found.