Delhi topped the list of most polluted capital cities in the world in 2019, according to a new report which also revealed that 21 of the world's 30 most polluted cities are in India.

According to the World Air Quality Report 2019 compiled by IQAir Air Visual,

Disclaimer: No Business Standard Journalist was involved in creation of this content

More From This Section

First Published: Feb 25 2020 | 5:20 PM IST

Next Story