Dhaka, June 28 -- Dhaka ranked 41st among the world's most polluted cities on Sunday morning, recording an Air Quality Index (AQI) score of 66 at 10:00am.

The air quality was classified as "moderate", indicating the air is acceptable for most people though it can pose a mild risk to a small number of "unusually sensitive" individuals, according to the AQI scale.

Johannesburg in South Africa, Kinshasa in Congo and Lahore in Pakistan occupied the first, second and third spot with AQI scores of 189, 166 and 158, respectively.

According to AQI standards, a reading between 101 and 150 is considered "unhealthy for sensitive groups", 151 and 200 "unhealthy", 201 and300 "very unhealthy", while levels above 301 are deemed "hazardous", posing se...