Three Indian towns rank in world’s most polluted after Diwali
Three Indian towns rank in the world’s most polluted after Diwali. New Delhi recorded an air quality index (AQI) of 420. An AQI reading of 400-500 is detrimental to the health. Two Indian cities joined New Delhi in ranking among the world’s top 10 for pollution, marked by a heavy presence of smoke in the … Read more