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  2. Take it easy: Warnings issued for heat, high ozone levels - AOL

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  3. Ground-level ozone - Wikipedia

    en.wikipedia.org/wiki/Ground-level_ozone

    In these networks, in-situ ozone monitors based on ozone's UV-absorption properties are used to measure ppb-levels in ambient air. Total atmospheric ozone (sometimes seen in weather reports) is measured in a column from the surface to the top of the atmosphere, and is dominated by high concentrations of stratospheric ozone.

  4. DNR issues air quality advisory today for Milwaukee ... - AOL

    www.aol.com/dnr-issues-air-quality-advisory...

    Ozone-related air quality issues are more likely to happen when it gets hot outside, Kuroski said. Milwaukee is expected to see high temperatures in the mid- to upper 80s this afternoon.

  5. Ozone layer - Wikipedia

    en.wikipedia.org/wiki/Ozone_layer

    It contains a high concentration of ozone (O 3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million. The ozone ...

  6. Ground-level ozone to create unhealthy air quality Thursday ...

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  7. Atmosphere of Earth - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Earth

    The atmospheric pressure at the top of the stratosphere is roughly 1/1000 the pressure at sea level. It contains the ozone layer, which is the part of Earth's atmosphere that contains relatively high concentrations of that gas. The stratosphere defines a layer in which temperatures rise with increasing altitude.

  8. Here's how to stay safe with poor air quality this summer in ...

    www.aol.com/heres-stay-safe-poor-air-095218531.html

    Levels of ground-level ozone, designated as one of six common air pollutants by the U.S. Environmental Protection Agency, can rise when compounded by heat and sunlight.

  9. Ozone - Wikipedia

    en.wikipedia.org/wiki/Ozone

    Low level ozone, or tropospheric ozone, is the most concerning type of ozone pollution in urban areas and is increasing in general. [60] Ozone pollution in urban areas affects denser populations, and is worsened by high populations of vehicles, which emit pollutants NO 2 and VOCs , the main contributors to problematic ozone levels. [ 61 ]