Dhaka, the overcrowded capital city of Bangladesh, has ranked third on the list of cities with the worst air quality with an AQI score of 216 at 09:40am on Sunday morning. On Sunday Dhaka’s air was classified as "very unhealthy" referring to an alarming healthy threat, according to the AQI index. The AQI, an index for reporting daily air quality, informs people how clean or polluted the air of a certain city is and what associated health effects might be a concern for them. Dhaka has long been grappling with air pollution issues. Its air quality usually turns unhealthy in winter and improves during the monsoon.