Dhaka, the overcrowded capital city of Bangladesh, ranked fifth on the list of cities with the worst air quality with an AQI score of 248 at 9am on Wednesday. Its air was classified as very unhealthy, ...

Dhaka, the overcrowded capital city of Bangladesh, has ranked the fifth on the list of cities with the worst air quality with an AQI score of 248 at 9:00am on Wednesday ...

China’s Wuhan, Chengdu and Chongqing cities respectively occupied the first, second and third spots on the list, with AQI scores of 258, 238 and 231 respectively. The AQI, an index for reporting daily ...