Air pollution, US cities

Report reveals 2024's most polluted cities, countries: Which US cities made the list?
Data from more than 40,000 air quality monitoring stations in 138 countries, territories and regions were analyzed for the report, IQAir said.
Map Shows US Cities With Worst Air Pollution
According to the ranking in IQAir's 2024 World Air Quality Report, these are the 10 U.S. cities with the worst pollution in North America: While eight of the most polluted U.S. cities in North America were in California, with the remaining two in Texas, the two least polluted regional cities were both located in Hawaii: Waimea and Ocean View.
World’s cities are failing on air pollution
By contrast, heavy pollution levels were found in Africa and Central & South Asia. All up, the five most polluted countries were Chad, Bangladesh, Pakistan, Democratic Republic of Congo and India. In Chad, annual PM2.5 levels (91.8 µg/m3) exceeded the WHO recommendation by more than 18 times.
Conrad K. Sangma to ‘check’ Byrnihat pollution after report ranks town as world’s 'most polluted city'
World Air Quality Report for 2024 published by IQAir says that the border town in Assam recorded an annual average PM2.5 concentration of 128.2 microgram per cubic meter(μg/m3)
India has six of the world's 10 most polluted cities, report shows
Chad, in central Africa, is the world’s most polluted country, while California has the worst air pollution in North America, according to an IQAir report.
El Paso ranked among most-polluted major U.S. cities in 2024. And 2025 may be worse.
El Paso had the ninth-most polluted air among major U.S. cities in 2024, according to one global report released Tuesday – and that was before a series of intense dust storms last week created some of the worst air quality conditions ever recorded in the city.
The list of the world’s top 20 most polluted cities is out. All but one are in Asia
The cities with the worst air pollution in North America were Ontario, Bloomington and Huntington Park – all in Southern California
Annual report reveals most polluted cities around the world
The countries with the worst air quality included Bangladesh and India, according to an annual report from IQAir.
Kathmandu ranks fifth among world's most polluted cities
Kathmandu's air quality has deteriorated, making it the fifth most polluted city in the world with an AQI of 180, according to the Air Quality Index.Beijing, Kampala, Delhi, and Kuwait occupy the top four spots,
20 most polluted cities in the world
Air pollution remains a serious global challenge, with some cities experiencing dangerously high levels of fine particulate matter (PM2.5). According to the latest IQAir report, 19 of the 20 most polluted cities in the world are in Asia,
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Pakistan remained world's 3rd most polluted country in 2024
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