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.
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.
bne IntelliNews on MSN2h
The countries improving air pollution most – Statista
By Katherina Buchholz for Statista Countries in Central and Southeast Asia as well as in Eastern and Southern Europe have ...
Statista on MSN1d
The Countries Improving Air Quality Most
Nations in Central and Southeast Asia as well as in Eastern and Southern Europe have improved their air quality most since ...
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 ...
WFLA News Channel 83d
2024 IQAir World Air Quality Report Finds Only 17% of Global Cities Meet WHO Air Pollution Guideline
STEINACH, Switzerland, March 11, 2025 /PRNewswire/ -- IQAir today announced the release of its 7 th annual World Air Quality Report, highlighting alarming trends of the world's most polluted ...
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 ...
Sourceable21h
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 ...
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 ...
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 ...
Al Jazeera on MSN3d
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.