- The IQ AIR report was published in November 2023 by the Swiss Air Quality Technology Company in Switzerland. Delhi, the capital of the nation, is now the most polluted city in the world, claims this report.
- The air quality index for Delhi is reported to be 492.
Pakistan’s Lahore, with an air quality index of 381, comes in second. - Dhaka is in fourth place, and Kolkata is in third.
Mumbai is in sixth place and Shenyang, China, is in fifth place. - India accounts for three of the top ten most polluted cities.
- In Delhi, there are 523 milligrams of small particulate matter, or PM 2.5, per cubic meter.
- This concentration exceeds the World Health Organization recommended level by 104 times.
