The countries with the worst air quality included Bangladesh and India, according to an annual report from IQAir.

The most polluted river in Europe has been revealed with its contents posing a major risk to both health and the environment.

All but one of the world’s top 20 most polluted cities last year were in Asia, with the majority of these cities – 13 – in India, the world’s most populous country. Neighboring Pakistan ...

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, India ...

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

The most polluted river in Europe has been revealed with its contents posing a major risk to both health and the environment. Taking the crown is the Manzanares river which lies across the city of ...

HONG KONG — Six out the world’s 10 most polluted cities are in India, while California has the worst air pollution in North America, a new report shows. New Delhi was the most polluted capital ...

Six out the world’s 10 most polluted cities are in India, while California has the worst air pollution in North America, a new report shows. New Delhi was the most polluted capital city globally ...