Dhaka, Jan. 30 -- Dhaka, the densely populated capital of Bangladesh, ranked second among the world's most polluted cities on Friday morning.

At 8:22 am, Dhaka recorded an air quality index (AQI) score of 190 and classified it as 'unhealthy' as reported by IQAir.

Delhi in India, Kuwait City in Kuwait, and Ulaanbaatar in Mongolia occupied the first, third, and fourth spots on the list, with AQI scores of 194, 186, and 181 respectively.

According to the AQI scale, a reading between 50 and 100 is considered 'moderate', with generally acceptable air quality, though sensitive individuals should limit prolonged outdoor exertion.

Air quality worsens as Dhaka tops global pollution ranking

AQI levels of 101-150 are 'unhealthy for sensitive gr...