If the air quality falls in the unhealthy or red range (151-200), the AQI recommends that people with compromised health avoid prolonged outdoor work or activities. Everyone else who is not health ...

High AQI is linked to particulate matter exposure, which increases lung cancer risk and may impact cognitive health, akin to long-term effects seen in smokers.

Dhaka, the overcrowded capital city of Bangladesh, ranked second on the list of cities with the worst air quality with an AQI score of 267 at 9am on Thursday morning. Its air was classified as very ...