, Feb. 1 -- Dhaka, the overcrowded capital city of Bangladesh, has ranked 4th on the list of cities with the worst air quality with an AQI index of 192 at 9:29 am on Saturday.

Dhaka's air was classified as 'unhealthy', according to the air quality and pollution city ranking.

India's Delhi, Cambodia's Phnom Penh, and Uganda's Kampala occupied the first and second spots in the list, with AQI scores of 209, 203 and 194, respectively.

Dhaka's air quality ranks world's 3rd worst on Tuesday

An AQI between 151 and 200 is considered 'unhealthy' while 201-300 is 'very unhealthy' and 301-400 is considered 'hazardous', posing severe health risks to residents.

The AQI, an index for reporting daily air quality, informs people how clean or pollute...