With an air quality index score of 246 at 08:20am, Dhaka, the capital city of Bangladesh ranked the 2nd on the list of cities around the world with the worst air quality. India’s Delhi, Pakistan’s Lahore, and India’s Kolkata, occupied the first, third and fourth spots, with AQI scores of 491, 232 and 226, respectively.

Pollution levels in India’s capital, Delhi, have soared to their highest levels this year, forcing schools and offices to close and cloaking the city in “hazardous” thick brown smog. In some parts of the city,