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

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

    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). [1 ...

  3. Oklahoma City ranked as one of the worst cities in the US for ...

    www.aol.com/oklahoma-city-ranked-one-worst...

    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 ...

  4. Air pollution in the United States - Wikipedia

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

    Looking down from the Hollywood Hills, with Griffith Observatory on the hill in the foreground, air pollution is visible in downtown Los Angeles on a late afternoon.. Air pollution is the introduction of chemicals, particulate matter, or biological materials into the atmosphere that cause harm or discomfort to humans or other living organisms, or damage ecosystems.

  5. 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 ...

  6. Harvard Six Cities study - Wikipedia

    en.wikipedia.org/wiki/Harvard_Six_Cities_study

    The Harvard "Six Cities" study was a major epidemiological study of over 8,000 adults in six American cities that helped to establish the connection between fine-particulate air pollution (such as diesel engine soot) and reduced life expectancy ("excess mortality"). [1]

  7. 25 Regions With the Best Air Quality: Metros Where You ... - AOL

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

    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 ...

  8. List of countries by air pollution - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_air...

    Air pollution is among the biggest health problems of modern industrial society and is responsible for more than 10 percent of all deaths worldwide (nearly 4.5 million premature deaths in 2019), according to The Lancet. Air pollution can affect nearly every organ and system of the body, negatively affecting nature and humans alike.

  9. List of U.S. states and territories by carbon dioxide emissions

    en.wikipedia.org/wiki/List_of_U.S._states_and...

    Carbon emissions per capita, 2020 Carbon emissions per 1000 square miles, 2020. This is a list of U.S. states and territories by carbon dioxide emissions for energy use, [1] [2] as well as per capita [3] [4] and by area.