KATHMANDU, May 3: The air quality in Kathmandu has once again deteriorated to hazardous levels. According to IQAir, the air pollution index in Kathmandu peaked at 207 at 12:30 PM.

KATHMANDU, April 16: Kathmandu Valley has become the first in the list of most polluted cities in the world in terms of air pollution. According to IQAir, an organization that measures the real-time pollution of 101 cities in the world, Kathmandu was found to be the most polluted city in the world on Saturday evening.