Delhi, India is a mega-city home to over 29 million people and is the second largest city on Earth. In 2023, the city’s average annual PM2.5 concentration was 102.1 µg/m3, a significant increase from the 2022 average of 93 µg/m³. Delhi was the fourth most polluted large cit...
Find out the most polluted cities in the world in 2023. Check out which city in the world had the highest level of air pollution PM2.5. Download the IQAir AirVisual world air quality report.
Find out the most polluted cities in the world in 2023. Check out which city in the world had the highest level of air pollution PM2.5. Download the IQAir AirVisual world air quality report.
Find out the most polluted countries in the world in 2023. Check out which country in the world had the highest level of air pollution PM2.5. Download the IQAir AirVisual world air quality report.
Delhi is not the world’s most polluted city anymore, the World Health Organisation’s urban air quality database shows. Ten upcoming Indian cities and towns have landed in the top twenty most polluted places. Half of the world’s 20 most polluted cities are...
In this graphic, we map the world’s most polluted countries according toIQAir, ranked by their annual average PM2.5 concentration (μg/m³) in 2023. The unit μg/m³ refers to micrograms per cubic meter. What is PM2.5? PM2.5 refers to fine particulate matter, with a diameter of ...
India has the world’s worst air pollution. Home to 21 of the world’s 30 most polluted cities, its poisonous air kills more than one million people each year. That’s partly because the South Asian nation is the world’s second largest brick producer. Brick kilns(砖窑)— which account ...
an estimated seven million premature deaths every year according to the World Health Organization. The recently releasedIQAir AirVisual 2020 World Air Quality Reportfound that 15 of the world's 20worst-pollutedcities are inIndia, though the worst affected city on the planet is actually in China....
These workers are testing a dust-suppression truck. This water cannon purports to suppress smog and promote clear, healthy air. 31. Nagpur, India Str/AFP/Getty Images Nagpur, home to the Marbat festival, is the most polluted city in the Indian state of Maharashtra. ...