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  2. Ozone pollution alert impacting North Texas Friday, according ...

    www.aol.com/ozone-pollution-alert-impacting...

    Get the latest information on the current air quality alert with our updates

  3. TCEQ issues ozone pollution alert affecting North Texas Tuesday

    www.aol.com/tceq-issues-ozone-pollution-alert...

    Get the latest information on the current air quality alert with our updates

  4. Ozone pollution alert in effect for North Texas until early ...

    www.aol.com/ozone-pollution-alert-effect-north...

    You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive-through lanes, conserving energy, and keeping your vehicle properly ...

  5. National Ambient Air Quality Standards - Wikipedia

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

    In April 2023, the EPA finalized its "Good Neighbor Plan", which phases in tighter standards for NO x, using a cap and trade system during the summer "ozone season". This is intended to reduce ground-level ozone in non-attainment areas downwind of industrial sources like power plants, incinerators, and industrial furnaces, often in other states ...

  6. Ground-level ozone - Wikipedia

    en.wikipedia.org/wiki/Ground-level_ozone

    Ground-level ozone (O 3), also known as surface-level ozone and tropospheric ozone, is a trace gas in the troposphere (the lowest level of the Earth's atmosphere), with an average concentration of 20–30 parts per billion by volume (ppbv), with close to 100 ppbv in polluted areas.

  7. File:Ozone altitude UV graph.svg - Wikipedia

    en.wikipedia.org/wiki/File:Ozone_altitude_UV...

    English: Levels of ozone at various altitudes , and related blocking of several types of ultraviolet radiation. The ozone concentrations shown are very small, typically only a few molecules wide O 3 per million molecules of air. But these ozone molecules are vitally important to life because they absorb the biologically harmful ultraviolet ...

  8. TCEQ issues ozone pollution alert affecting North Texas Wednesday

    www.aol.com/tceq-issues-ozone-pollution-alert...

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  9. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    The ozone AQI between 100 and 300 is computed by selecting the larger of the AQI calculated with a 1-hour ozone value and the AQI computed with the 8-hour ozone value. Eight-hour ozone averages do not define AQI values greater than 300; AQI values of 301 or greater are calculated with 1-hour ozone concentrations. 1-hour SO 2 values do not ...