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  2. The Best (and Worst) US Cities for Getting Outside: Where ...

    www.aol.com/best-worst-us-cities-getting...

    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 ...

  3. 30 Cities With Best Air Quality in the U.S. - AOL

    www.aol.com/news/30-cities-best-air-quality...

    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 ...

  4. List of most-polluted cities by particulate matter concentration

    en.wikipedia.org/wiki/List_of_most-polluted...

    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]

  5. Air pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_the...

    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."

  6. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    An air quality index (AQI) is an indicator developed by government agencies [1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become. [2][3] As air pollution levels rise, so does the AQI, along with the associated public health risk. Children, the elderly and individuals with respiratory or ...

  7. The Dirtiest (and Cleanest) Big Cities in America - AOL

    www.aol.com/dirtiest-cleanest-big-cities-america...

    800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. ... Thanks to its low pollution levels, the city also ties with three other cities for having the best air quality.

  8. List of least-polluted cities by particulate matter concentration

    en.wikipedia.org/wiki/List_of_least-polluted...

    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.

  9. 25 Regions With the Best Air Quality: Metros Where You Can ...

    www.aol.com/2012/11/13/25-cities-with-best-air...

    The average person takes thousands of breaths a day but probably doesn't think about the quality of the air he or she is breathing. Residents of New York City, you should be particularly concerned ...