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

India saw a seven per cent decline in PM2.5 levels in 2024, but six of the world's ten most polluted cities were still in the country, according to the IQAir 2024 World Air Quality Report. India's annual PM2.

India ranked as the fifth most polluted country in the world in 2024, with Byrnihat, Meghalaya, recognized as the most polluted metropolitan area globally. Despite a 7% decline in PM2.5 levels, New Delhi remained the most polluted capital.

Thirteen of the world's top 20 most polluted cities are in India, with Byrnihat in Assam topping the list, according to a new report published on Tuesday. The World Air Quality Report 2024 by Swiss air quality technology company IQAir said Delhi remains the most polluted capital city globally,

Thirteen of the world's 20 most polluted cities are in India, with Byrnihat in Meghalaya topping the list, according to a new report published on Tuesday

India's air pollution crisis remains severe, with 13 of the world's 20 most polluted cities, including Byrnihat and Delhi, struggling with hazardous air quality. The World Air Quality Report 2024 highlights a 7% decline in PM2.