Kathmandu air very unhealthy, eye irritation complained

Kathmandu, Apr. 4: For the fourth consecutive day, Kathmandu remained the most polluted city in the world. On Thursday afternoon, the city's overall Air Quality Index (AQI) reached around 300, a level considered very unhealthy. The AQI in Rabi Bhaban reached 600 on the same day, indicating hazardous level.