, Dec. 6 -- Dhaka, the overcrowded capital city of Bangladesh, has ranked the third on the list of cities with the worst air quality with an AQI score of 254 at 9:06 am this morning.

Many people still burn trash, ride old motorbikes, and use charcoal stoves, and they treat Hanoi's air pollution as someone else's problem.

Toxic smog continues to engulf major cities across Punjab, pushing Lahore into the list of the world’s most polluted urban ...