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.
Most polluted cities in the world — and the U.S. — revealed in annual report
The countries with the worst air quality included Bangladesh and India, according to an annual report from IQAir.
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.
World’s most polluted cities are in Asia, says report
IQAir latest study shows 19 of 20 cities with worst air pollution are in India, Pakistan, Bangladesh, China, and Kazakhstan
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
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,
India fifth most polluted country whereas Byrnihat in Meghalaya the world’s most polluted city: IQAir Report
India ranked as the fifth most polluted country in the world in 2024, with Byrnihat, Meghalaya, recognized as the most polluted metropolitan area globally. Despite a 7% decline in PM2.5 levels, New Delhi remained the most polluted capital.
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Which cities in US have worst air quality? New report highlights alarming global trends
Swiss air quality technology company, IQAir, released its 7th annual World Air Quality Report, highlighting trends in air ...
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 ...
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LIVE: IQAir leaders hold press conference on their report on global pollution
IQAir Global CEO Frank Hammes and IQAir Air Quality Science Manager Dr. Christi Chester Schroeder speak at a news conference ...
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The Countries Improving Air Pollution Most
In the five years between 2019 and 2024, average annual air pollution by particles of 2.5 micrometers in diameter or smaller ...
Only seven countries met WHO air quality standards in 2024, data shows
Only seven countries met World Health Organization (WHO) air quality standards last year, data showed on Tuesday, as ...
Particulate matter levels in air exceed WHO limits in majority of world's big cities
Fewer than one in five global cities met World Health Organization air pollution standards in 2024 with Central and South ...
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Most of the world’s population is breathing dirty air: Report
IQAir study finds that Chad, Bangladesh, Pakistan, India and the Democratic Republic of Congo have the dirtiest air.
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Bangladesh moves to second worst in IQAir's 2024 air quality rankings
Bangladesh has earned the dubious distinction of being the second most polluted country in the world in 2024, with air ...