All Indian cities showed air quality improvements in 2020 owing to the Covid-19 impact compared to 2018, while 63 per cent saw improvements compared to 2019, said the 2020 World Air Quality Report on Tuesday that is based on PM 2.5 data from 106 countries
By Outlook Planet Desk 17/03/2021
Twenty-two of the world's 30 most polluted cities are in India, with Delhi being ranked as the most polluted capital city globally, a new report said on Tuesday.
By Outlook Planet Desk 17/03/2021