Dhaka's air most polluted in the world -------

Dhaka, the overcrowded capital of Bangladesh, has once again topped the list of cities worldwide with the worst air quality with an AQI score of 274 at 09:06 am on Saturday, reports UNB.

Dhaka's air was classified as 'very unhealthy', according to the air quality and pollution city ranking. An AQI between 151 and 200 is considered 'unhealthy' while 201-300 is 'very unhealthy', and 301-400 is considered 'hazardous', posing severe health risks to residents.

China's Shenyang, Myanmar's Yangon and Pakistan's Karachi occupied the second, third and fourth spots in the list, with AQI scores of 181, 177 and 172, respectively. 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.