This city of Pakistan has earned the title of the world's most polluted city, with an Air Quality Index (AQI) of 394.

India continues to grapple with air pollution, with approximately 1.3 billion, or 96% of its population, exposed to PM2.5 levels, seven times more than WHO's guidelines; Here are top 10 Indian cities with the best and worst AQIs as of024.

Delhi's air quality hits 'very poor' with an AQI of 307; firecracker ban in effect until January 1 as authorities aim to curb pollution

A thick layer of fog was seen in Anand Vihar, Kalkaji, Nehru Place, and Akshardham Temple localities among other places in the national capital, as the city's air quality dropped to 385 at 8 am today.

Delhi's air quality worsens, with AQI at 385, prompting implementation of GRAP-II to combat pollution effectively.

Delhi's air quality is expected to deteriorate further, with the AQI likely to exceed 400 and fall into the 'severe' category on Tuesday and Wednesday, due to stubble burning in neighbouring states and unfavourable wind conditions.

The second stage of the Graded Response Action Plan has been implemented in the national capital, banning the use of coal and firewood.

Vehicular emissions top cause of air pollution, but stubble burning in neighbouring states aggravates the situation

National capital's average air quality on Monday slipped into the 'very poor' category for the first time in the season, as the residents of the city woke up to a hazy morning with smog also visible at some places.