, April 25 -- Dhaka ranked 3rd among the world's most polluted cities on Friday morning, with an Air Quality Index (AQI) of 144 recorded at 11:40 am.

The air quality was categorised as 'unhealthy for sensitive groups', indicating a significant risk to public health, according to AQI standards.

India's Delhi topped the list with an AQI of 183 , Beijing's China(149) is the second position.

An AQI reading between 101 and 150 is considered 'unhealthy for sensitive groups', while 151-200 is classified as 'unhealthy'. Levels of 201-300 are deemed 'very unhealthy', and readings above 301 are labelled 'hazardous', posing severe health risks.

The AQI, which tracks daily air quality, indicates how polluted the air is and the potential health im...