C T Online Desk: Dhaka’s air quality has turned ‘moderate’ again.
With an air quality index (AQI) score of 57 at 9.10am, the metropolis on Saturday ranked 42nd in the list of world cities with the worst air quality.
An AQI between 50 and 100 is considered ‘moderate’ with an acceptable air quality. However, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
Pakistan’s Lahore and Karachi and China’s Beijing occupied the first three spots in the list, with AQI scores of 169, 166, and 161, respectively.
An AQI between 101 and 200 is considered ‘unhealthy’, particularly for sensitive groups.
Similarly, an AQI between 201 and 300 is said to be ‘poor’, while a reading of 301 to 400 is considered ‘hazardous’, posing serious health risks to residents.
