Air Quality Index: Dhaka ranks fourth worst

Bangladesh’s capital Dhaka ranked the fourth worst in Air Quality Index (AQI) on Monday.

The independent live air-quality index monitor, Air Visual, shows Dhaka’s AQI value as 178 around 8:15am.

Mongolia's Ulaanbaatar topped the list with an AQI score of 252 while South Korea's Incheon and Vietnam's Hanoi stood second and third in the list of poor air cities with AQI values 190 and 184 respectively.

Dhaka topped the worst air city list multiple times including 9, 14, 18, 19, 24 and 25 February. It had also ranked the worst earlier on 17 and 23 November, 26 December and 6, 29, 31 January.

The city has been continuously staying within the five most polluted cities around the world.

The AQI is a tool for measuring daily air quality of any city or country. It refers to the degree of pollution or cleanliness.