Air pollution, countries and 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.
It’s not China or the US: This country has 11 of the 20 most polluted cities in the world
Poor air quality poses serious health risks to humans. Industry, energy, and the transportation sector are all major contributors to poor air quality, and cities across this country breathe some of that air on Earth. The World Health Organization (WHO) estimates that 99 percent of all people breathe air that “contains high levels of pollutants.”
The list of the world’s top 20 most polluted cities is out. All but one are in Asia
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 economic growth is fired largely by coal and where hundreds of millions live in traffic-clogged and congested megacities .
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.
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.
Top 10 most polluted cities in the world (2024-25): 6 of them are in India
India, the fifth most polluted country in the world, is home to 13 of the top 20 most polluted cities in the world, according to the latest report by IQAir.
This Meghalaya city topped list of world's most polluted cities in 2024
Byrnihat, declared the world's most polluted city according to IQAir's World Air Quality Report 2024, faces severe health issues due to industrial pollution.
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,
Top 10 most polluted Indian cities (2024-25): Delhi tops the list, Byrnihat ranked worst globally
According to the latest IQAir report, Delhi stands out as the most polluted capital globally and the most polluted cosmopolitan city in India, with the highest overall AQI of 108.3 in 2024.
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.
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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Delhi Is The Most Polluted Capital City In The World-How Does Air Pollution Impact Health
WHO data show that almost all of the global population (99%) breathe air that exceeds WHO guideline limits and contains high ...
This City Is The World's Most Polluted. Hint: It's Not Delhi
A small city on the Meghalaya-Assam border, nearly 2,000 kilometres away from Delhi, is the most polluted in the world, ...
With 13 of 20 most polluted cities, India ranks 5th globally
India ranked as the fifth most polluted country worldwide in 2024, with Byrnihat in Meghalaya being the most polluted ...