Raging wildfires drive pollution surge in Kathmandu

Kathmandu Valley ranked the world’s most polluted city on Monday afternoon, with PM2.5 levels reaching 365 micrograms per cubic metre (μg/m3).

Amid widespread wildfires raging across the country, the Kathmandu Valley ranked the world’s most polluted city on Monday afternoon, with PM2.5 levels soaring to 365 micrograms per cubic metre (μg/m3), the hazardous level.