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  2. Why is air quality bad today? Here's what you need to know - AOL

    www.aol.com/why-air-quality-bad-today-124844029.html

    "Long-term," read IQ Air's air quality site, "the effects from ozone exposure can include: increased asthma attacks; reduced lung function; exacerbation of respiratory diseases; and cardiovascular ...

  3. Air Quality Is Bad Pretty Much Everywhere, New World ... - AOL

    www.aol.com/air-quality-bad-pretty-much...

    According to the 2023 World Air Quality Report published on Tuesday by IQAir, a Swiss firm that monitors real-time air quality around the world and has published an annual assessment since 2018 ...

  4. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    The most commonly used air quality index in the UK is the Daily Air Quality Index recommended by the Committee on the Medical Effects of Air Pollutants (COMEAP). [39] This index has ten points, which are further grouped into four bands: low, moderate, high and very high. Each of the bands comes with advice for at-risk groups and the general ...

  5. 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 ...

  6. List of countries by air pollution - Wikipedia

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

    Air pollution can affect nearly every organ and system of the body, negatively affecting nature and humans alike. Air pollution is a particularly big problem in emerging and developing countries, where global environmental standards often cannot be met. The data in this list refers only to outdoor air quality and not indoor air quality, which ...

  7. Is it dangerous to run your AC when air quality is bad? - AOL

    www.aol.com/news/dangerous-run-ac-air-quality...

    Poor air quality alerts are sweeping across the U.S. again as Canadian wildfire smoke continues to drift south. According to a map of the U.S. from AirNow.gov, much of the Northeast, Southeast and ...

  8. Air pollution - Wikipedia

    en.wikipedia.org/wiki/Air_pollution

    Air pollution is the presence of substances in the atmosphere that are harmful to humans and other living beings, or cause damage to the environment. Air pollution can be chemical, physical or biological. [1]

  9. Why is the air quality bad today? 'Very unhealthy' air ... - AOL

    www.aol.com/why-air-quality-bad-today-135549984.html

    Why is the air quality bad today? According to Accuweather, Oklahoma City had unhealthy levels of PM 2.5 and PM 10 pollutants as of Monday morning.