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  2. Several central Ohio counties under air quality alert ... - AOL

    www.aol.com/air-quality-alert-issued-columbus...

    The Mid-Ohio Regional Planning Commission issued an air quality alert beginning at 6 a.m. Thursday for parts of central Ohio.. The alert issued Wednesday afternoon includes Delaware, Franklin ...

  3. What parts of central Ohio have lower air quality Tuesday as ...

    www.aol.com/parts-central-ohio-lower-air...

    When levels reach above 100, air quality is considered unhealthy for sensitive groups, and the Mid-Ohio Regional Planning Commission issues an air quality alert. A moderate air quality means ...

  4. Why is Ohio's air quality bad today? Here's why the ... - AOL

    www.aol.com/why-ohios-air-quality-bad-153508217.html

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  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. National Ambient Air Quality Standards - Wikipedia

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

    US counties that are designated "nonattainment" for the Clean Air Act's NAAQS, as of September 30, 2017. The U.S. National Ambient Air Quality Standards (NAAQS, pronounced / ˈ n æ k s / naks) are limits on atmospheric concentration of six pollutants that cause smog, acid rain, and other health hazards. [1]

  7. 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 ...

  8. Air Quality Alert remains in effect today for parts of ... - AOL

    www.aol.com/news/air-quality-alert-remains...

    Jul. 28—An Air Quality Alert is in effect again Wednesday for parts of the Southwest Ohio region. The Air Quality Index is anticipated to be above 100, which means that the air is considered ...

  9. Seneca County Airport - Wikipedia

    en.wikipedia.org/wiki/Seneca_County_Airport

    For the 12-month period ending October 1, 2021, the airport had 60,225 aircraft operations, an average of 165 per day. This included 91% general aviation, 8% air taxi, and <1% military. For the same time period, 33 aircraft were based at the airport, including 22 single-engine and 10 multi-engine airplanes as well as 1 jet airplane. [8]