Kathmandu world's 'most polluted' city: AQI

By TRN Online, Kathmandu, April 26: The air quality of the Kathmandu Valley has reached the highest point.

Based on the Air Quality Index (AQI), the AQI of Kathmandu has reached 194 today.

This is considered unhealthy for human health. 

Pakistan stands second with 186 and New Delhi third with 173 in the AQI index.