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  2. Is the Air Quality Index enough? What the AQI can - AOL

    www.aol.com/lifestyle/air-quality-index-enough...

    The Air Quality Index is a tool used by the Environmental Protection Agency (EPA) in order to communicate outdoor air quality. It’s a scale of 0 to 500, with the higher number indicating the air ...

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

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

    This list contains the top 500 cities by PM2.5 annual mean concentration measurement as documented by the World Health Organization covering the period from 2010 to 2022. 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.

  4. 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.

  5. 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.

  6. How to understand the Air Quality Index - AOL

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

    The AQI uses a scale that typically ranges from zero to 500 to denote air quality. If your area has an AQI of 50 or below, you're in a green zone. If your area has an AQI of 50 or below, you're in ...

  7. Air quality – live: New York hits pollution record as Canada ...

    www.aol.com/air-quality-live-code-red-131934891.html

    The Big Apple is suffering record levels of air pollution as wildfire smoke blowing in from Canada shuts down airports and cancels Wednesday’s MLB game between the Yankees and the White Sox

  8. List of countries by air pollution - Wikipedia

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

    All data are valid for the year 2022 and are taken from the Air Quality Life Index (AQLI) of the University of Chicago.In addition to particulate matter pollution, the modeled potential loss of life expectancy of the population due to particulate matter pollution is given.

  9. NYC's air quality sinks to the worst in the world - AOL

    www.aol.com/nyc-officials-announce-advisories-5...

    As a thick haze of yellowish smog continues to wrap itself around the Big Apple, air quality advisories were in place Wednesday for all five boroughs of New York City with city dwellers urged to ...