Vehicular emissions, wildfires, and cross-border pollution are some of the reasons for Kathmandu’s air pollution, causing the sky above the valley to remain misty since Monday.
The “World Air Quality Report, 2021” published by the European Air Quality Index AQI last week also showed Kathmandu as the sixth most polluted capital in the world in 2021.
Kathmandu’s geographical location, where large amounts of dust, vehicular fumes and other smoke sources can gather and stay within the city, can often accumulate over long periods due to lack of strong winds and rainfall, a process that can cause a hazardous level of pollution in the valley, said Indira Kandel, a senior meteorologist at the Department of Hydrology and Meteorology.