Updated On: 30 November, 2020 03:16 PM IST | Lahore | IANS
In the list, New Delhi ranked second with a PM of 229, while Kathmandu was the third-worst city with a PM of 178

Photo for representational purpose
Lahore has again topped the list of the most polluted city in the world, according to air pollution data released by the US Air Quality Index on Monday.
According to the index, Lahore reported a particulate matter (PM) rating of 423, reports Geo TV.