Nepal's capital Kathmandu becomes the most air-polluted city worldwide

With the Air Quality Index (AQI) reaching a staggering 470, Kathmandu has become the most air polluted city in the world this week. The polluted air is said to have spread throughout Asia, crossing the Himalayan range and reaching Tibet for the first time in history.

People wearing face mask walk past in front of the off pollution meter in Kathmandu, Nepal, 30 March 2021. Source: EPA