Fine particulate matter in Delhi's winter air could be absorbing moisture, leading to an underestimation of PM1 pollution by ...

A Swiss company that tracks global air quality has named Delhi the world’s most polluted national capital for the sixth year ...

Chad, in central Africa, is the world’s most polluted country, while California has the worst air pollution in North America, ...

India houses 13 of the world’s 20 most polluted cities, with Assam’s Byrnihat topping the list, according to a report by ...

Despite an improvement in 2024, India again dominated global rankings for the cities with the most dangerous particle smog ...