Dhaka, Feb. 4 -- Dhaka has topped the list of cities with the worst air quality with an AQI score of 251 at 8:21 am on Tuesday morning.

The air quality was classified as "very unhealthy" according to the AQI Index.

Iraq's Baghdad, Kyrgyzstan's Bishkek and Democratic Republic of the Congo's Kinshasa occupied the second, third and fourth spots on the list, with AQI scores of 248, 222 and 220, respectively.

Dhaka's air continues to be world's most polluted this morning

When the AQI value for particle pollution is between 50 and 100, air quality is considered 'moderate', usually sensitive individuals should consider limiting prolonged outdoor exertion, between 101 and 150, air quality is considered 'unhealthy for sensitive groups', betwee...