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The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries. Air quality in the database is represented by the annual mean concentration of particulate matter ( PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers, respectively).
All but one of the 100 cities with the world’s worst air pollution last year were in Asia, according to a new report, with the climate crisis playing a pivotal role in bad air quality that is ...
In an apparent wake-up call to Asia, the world’s 100 most polluted cities in 2020 all happened to be in the continent, according to the latest annual report by air quality tracker IQAir. Key ...
Below is a list of 526 cities sorted by their annual mean concentration of PM2.5 (μg/m 3) in 2022. [1] [2] By default the least polluted cities which have fewest particulates in the air come first. Click on the arrows next to the table's headers to have the most polluted cities ranked first. Please note that constraints exist in this type of ...
The following list of countries by air pollution sorts the countries of the world according to their average measured concentration of particulate matter in micrograms per cubic meter (μg/m 3).
Pixabay/Public Domain. Air pollution is one of the worst forms of pollution and is the leading environmental risk to health. According to a report by the World Bank, air pollution results in costs ...
The 2024 State of the Air report ranked Oklahoma City as the 25th most polluted by annual particle pollution. Though the metro area was less affected by wildfire smoke in this year’s report, OKC ...
Fresno has some of the worst air quality in the United States, according to the American Lung Association. The Central Valley is one of the top 10 most polluted cities in the United States ...