New Delhi, March 19 -- Delhi world's most polluted capital city again, India has third worst air quality out of 134 countries according to report. According to the World Air Quality Report 2023, compiled by the Swiss organization IQAir, India ranks third in terms of the worst air quality among 134 countries, with an average annual PM2.5 concentration of 54.4 micrograms per cubic meter. This distressing revelation places India behind only Bangladesh (79.9 micrograms per cubic meter) and Pakistan (73.7 micrograms per cubic meter) in terms of air pollution levels.

Bihar's Begusarai has emerged as the most polluted metropolitan area globally, while Delhi retains its notorious position as the capital city with the poorest air quality, as per ...