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The 2018 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 2700 towns and cities in 91 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). [1] [2] [3]
Anthropogenic air pollution has affected the United States since the beginning of the Industrial Revolution. [2] According to a 2024 report: "39% of people living in America—131.2 million people—still live in places with failing grades for unhealthy levels of ozone or particle pollution."
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.
Phoenix, Arizona ranks as the best city for getting outside thanks to a minimal amount of precipitation or hazardous air quality, followed by Denver and Boston. Six of the top 10 best cities are ...
In this article we take a look at the 30 cities with the best air quality in the U.S. Click to skip ahead and jump to the 10 Cities With Best Air Quality in the U.S. Great quality of life depends ...
May 21, 2024 at 5:43 PM. U.S. News and World Report has released its annual list of the best U.S. cities to live in for 2024. At the top of this year's list: Naples, Florida; Boise, Idaho ...
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). The World Health Organization's recommended limit is 5 micrograms per cubic meter, although there are also various national guideline values, which are ...
Virginia Beach had zero days that were high in particle or ozone pollution, according to the American Lung Association’s 2022 State of the Air report — making it one of the cleanest cities in ...