Data from more than 40,000 air quality monitoring stations in 138 countries, territories and regions were analyzed for the ...

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

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

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 booming ...

Dhaka ranked third on the list of cities worldwide with the worst air quality, with an AQI score of 184 at 9am on Tuesday.

The most polluted cities in the world last year have been revealed in a new study, with countries in Asia dominating the top ...

Bangkok has landed among the world’s most polluted cities, ranking eighth in the latest IQAir report, with an AQI of 141 this ...

HONG KONG — Six out the world’s 10 most polluted cities are in India, while California has the worst air pollution in North ...

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 ...

is the most polluted city in the world. Only 17% of global cities meet WHO's air pollution guidelines. Several Indian cities, including Delhi, are among the top 20 most polluted. The high ...

Thirteen of the world's twenty most polluted cities are in India, with Byrnihat being the most polluted globally. Delhi remains the most polluted capital city, and India's PM2.5 levels exceed the ...