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  2. NowCast (air quality index) - Wikipedia

    en.wikipedia.org/wiki/NowCast_(air_quality_index)

    PM 2.5 AQI of US monitors, calculated utilizing NowCast, courtesy US EPA PM2.5 AQI map, calculated utilizing NowCast, courtesy US EPA. The PM (particulate matter) NowCast is a weighted average of hourly air monitoring data used by the United States Environmental Protection Agency (USEPA) for real-time reporting of the Air Quality Index (AQI) for PM (PM 10 - particles less than 10 micrometers ...

  3. 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 ...

  4. List of Connecticut weather records - Wikipedia

    en.wikipedia.org/wiki/List_of_Connecticut...

    A map of towns which reported damage. Not all of these damage areas were definitely tornadic, and some tornadoes hit more than one town. [4] [5]Between 1953 and 2004, there was an average of one tornado per year within the Connecticut.

  5. The best air purifiers of 2025 - AOL

    www.aol.com/lifestyle/best-air-purifiers...

    Our air quality meter recorded the Gen1 transformed a small room’s air quality from 204 micrograms per cubic meter of PM2.5 to 23 in around 40 minutes. ... Jane Seymour opens her doors to former ...

  6. How to understand the Air Quality Index - AOL

    www.aol.com/news/how-to-understand-the-air...

    The AQI measures air quality based on five major pollutants that the Clean Air Act regulates: ozone, particle pollution (AKA particulate matter or PM2.5), carbon monoxide, nitrogen dioxide and ...

  7. Key warning signs about bird flu are all going in the wrong ...

    www.aol.com/news/key-warning-signs-bird-flu...

    The bird flu outbreak has taken concerning turns, with more than 60 human cases confirmed. Experts outlined four signs that the virus is going in the wrong direction.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. 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 ...