The only city outside of Asia featured on the list is N’Djamena, the capital of Chad in central Africa – which was named the country with the worst air pollution. Meanwhile the cities with the ...

The majority of world’s top 20 most polluted cities last year were in Asia, says a new study assessing air pollution across the world. N’Djamena, the capital of Chad in central Africa, was named the ...

The most polluted cities in the world last year have been revealed in a new study, with countries in Asia dominating the top 10, a new study suggests. Switzerland-based firm IQAir released its ...

(CNN) — All but one of the world’s top 20 most polluted cities last year were in Asia, a new study shows. The majority of these cities – 13 – are in the world’s most populous country ...