Pollution in the Vietnamese capital of Hanoi, home to almost 9 million people, reflects the environmental cost of the Southeast Asian nation’s explosive growth.

All but one of the world’s top 20 most polluted cities last year were in Asia, a new study shows.

The South Asian countries of Pakistan, India and Bangladesh are among the most polluted countries in the world while Australia, New Zealand and Iceland are among the least polluted countries, a ...

India was home to six of the nine most polluted global cities, IQAir said. One hundred and twenty-six countries, or 91.3% of the world, exceeded the WHO guideline, according to the report.

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.

The region of Sarajevo on Wednesday declared a state of alert, as the Bosnian capital once again ranked among the world's most polluted cities.

A recent analysis has highlighted the world's most polluted tourist destinations, revealing concerning environmental conditions in some of the most visited cities.

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.

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, where ...

(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 ...

(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 ...