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  2. Particulate pollution - Wikipedia

    en.wikipedia.org/wiki/Particulate_pollution

    Particulate matter (PM), particularly PM2.5, was found to be harmful to aquatic invertebrates. [41] These aquatic invertebrates include fish, crustaceans, and Mollusca. In a study by Han et al, the effects of PM<2.5 micrometers on life history traits and oxidative stress were observed in Tigriopus japonicus.

  3. Air quality guideline - Wikipedia

    en.wikipedia.org/wiki/Air_quality_guideline

    The guidelines stipulate that PM 2.5 should not exceed 5 μg/m 3 annual mean, or 15 μg/m 3 24-hour mean; and that PM 10 should not exceed 15 μg/m 3 annual mean, or 45 μg/m 3 24-hour mean. [2] For ozone (O 3 ), the guidelines suggest values no higher than 100 μg/m 3 for an 8-hour mean and 60 μg/m 3 peak season mean. [ 2 ]

  4. National Ambient Air Quality Standards - Wikipedia

    en.wikipedia.org/wiki/National_Ambient_Air...

    Particulate matter (PM 10) Primary and Secondary 150 μg/m 3: 24-hour Not to be exceeded more than once per year on average over 3 years 40 CFR 50.6: Fine particulate matter (PM 2.5) Primary 9.0 μg/m 3 (12 μg/m 3 prior to May 6, 2024) [25] annual Annual mean, averaged over 3 years 40 CFR 50.18: Secondary 15 μg/m 3: annual Annual mean ...

  5. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    2 5 160 100 35 100 150 ... PM 2.5 (optional) μg/m 3; Very low 0-25 0-50 0-25 0-60 ... particulate matter measuring 2.5 microns or less in diameter that can be ...

  6. New study ranks Columbus most polluted city in US. But is it ...

    www.aol.com/news/study-ranks-columbus-most...

    A new study out today names Columbus as the most polluted major city in the United States for 2023. But is it really? EPA and other findings differ.

  7. List of countries by air pollution - Wikipedia

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

    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 10 micrograms per cubic meter, although there are also various national guideline values, which ...

  8. Particulates - Wikipedia

    en.wikipedia.org/wiki/Particulates

    Particulates or atmospheric particulate matter (see below for other names) are microscopic particles of solid or liquid matter suspended in the air.The term aerosol refers to the particulate/air mixture, as opposed to the particulate matter alone, [1] though it is sometimes defined as a subset of aerosol terminology. [2]

  9. Weight-Loss Drugs Like Ozempic Can Help Alcohol Addiction

    www.aol.com/lifestyle/weight-loss-drugs-ozempic...

    February 12, 2025 at 2:57 PM Credit - Steve Christo—Getty Images S ince weight-loss drugs that target the hormone GLP-1 have surged in popularity, some additional health benefits have emerged.