These changes will hopefully help bring some relief. Officials issue sudden order to ban all motorbikes from major city — ...

Join Joe Hattab as he explores the vibrant street food scene in Dhaka, Bangladesh, one of the world's most densely populated ...

In a live ranking Saturday by IQAir, a Swiss air monitoring company, Hanoi ranked 13th on a list of the most polluted major cities. The fog hanging over Hanoi isn’t just pollution; it’s a ...

Those cities rank among the top 25 with the worst air in the U.S. for at least one of the two most widespread types of pollution, according to new data from the American Lung Association.

2025’s Most Polluted Cities by Ozone Big picture view: The "State of the Air" report looks at two of the most widespread and dangerous air pollutants: fine particles and ozone.

In 1969, Chattanooga was labeled the most polluted city due to unregulated emissions from its industrial sector. The pollution got so bad that even daytime driving required headlights.

Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

A report from Environment America found Ontario Beach had potentially unsafe water quality on 42% of test days in 2024.

A series of live maps from Windy.com highlighted which parts of the U.S. were experiencing elevated levels of air pollution on Friday. The maps showed data for multiple types of pollutant, including ...

HOUSTON, Texas -- The Houston-Pasadena region ranked No. 7 out of 228 metropolitan areas on the American Lung Association's most polluted cities by ozone, according to its 2025 State of the Air ...

Urban Wastelands: The World’s 10 Most Polluted Places 1 minute read epa01457469 A boy places another piece of 'e-waste' on a burning pile of electronics in Agbogbloshie, Accra, Ghana, 8 August 2008.