Dhaka air world’s most polluted this morning
Dhaka has once again topped the list of world cities with the worst air quality.
With an air quality index (AQI) score of 306 at 8:45 am on Friday, Dhaka ranked first in the list of cities with the worst air.
An AQI between 151 and 200 is said to be ‘unhealthy’ while 201 and 300 is considered ‘very unhealthy’, and 301...