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, with the majority of these cities – 13 – in India, the world’s most populous country.

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.

All 20 of the world’s most polluted cities last year exceeded WHO PM2.5 guidelines by over 10 times, the IQ Air report showed. Data gaps ...

In one of the World Health Organization’s most recent global studies on air pollution, measuring so-called PM 2.5 and PM 10 particles, major Australian and Canadian cities shared the top ranks.

All but one of the 100 cities with the world’s worst air pollution last year were in Asia, according to a new report, with the climate crisis playing a pivotal role in bad air quality that is ...

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 ...

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 ...

All 20 of the world’s most polluted cities last year exceeded WHO PM2.5 guidelines by over 10 times, the IQ Air report showed. Data gaps ...