Dhaka, April 7 -- Dhaka, the densely populated capital of Bangladesh, ranked 10th among the world's most polluted cities on Tuesday morning, with an Air Quality Index (AQI) of 114 at 09:03 am.

The air was classified as 'unhealthy for sensitive groups', meaning it could pose health risks to people who are more vulnerable, according to the AQI scale.

Thailand's Chiang Mai, Vietnam's Hanoi and Indonesia's Jakarta were the three most polluted cities, with AQI scores of 193, 173 and 154.

An AQI between 101 and 150 is considered 'unhealthy for sensitive groups', while 151-200 is 'unhealthy', 201-300 is 'very unhealthy', and anything above 301 is 'hazardous' and can cause serious health problems.

The AQI measures daily air quality, showing h...