Bangladesh’s capital Dhaka ranked the third worst in Air Quality Index (AQI) on Tuesday.
The independent live air-quality index monitor, Air Visual, shows Dhaka’s AQI value as 177 around 8:30am.
India's Kolkata topped the list with an AQI score of 194 while Thailand's Chiang Mai and Mongolia's Ulaanbaatar stood second and fourth in the list of poor air cities with AQI values 188 and 173 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.