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  2. Ozone layer - Wikipedia

    en.wikipedia.org/wiki/Ozone_layer

    The ozone layer peaks at 8 to 15 parts per million of ozone [1], while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 15 to 35 kilometers (9 to 22 mi) above Earth, although its thickness varies ...

  3. 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.

  4. Ozone depletion - Wikipedia

    en.wikipedia.org/wiki/Ozone_depletion

    Ozone depletion consists of two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere, [citation needed] and a much larger springtime decrease in stratospheric ozone (the ozone layer) around Earth's polar regions. [1] The latter phenomenon is referred to as the ...

  5. The whole in Earth's ozone over Antarctica decreased in size

    www.aol.com/2017-11-03-the-whole-in-earths-ozone...

    The hole in Earth's ozone over Antarctica is the smallest we've seen since 1988 — but don't get too excited.

  6. Ozone - Wikipedia

    en.wikipedia.org/wiki/Ozone

    It is dangerous to allow this liquid to warm to its boiling point, because both concentrated gaseous ozone and liquid ozone can detonate. At temperatures below 80 K (−193.2 °C; −315.7 °F), it forms a violet-black solid. [28] Ozone has a very specific sharp odour somewhat resembling chlorine bleach. Most people can detect it at the 0.01 ...

  7. Chemicals which created hole in Earth’s ozone layer are ...

    www.aol.com/news/ozone-depleting-cfc-chemicals...

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  8. Hole in the Earth's ozone layer Is finally closing up, NASA says

    www.aol.com/article/2015/05/15/hole-in-the-earth...

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  9. Ozone depletion and climate change - Wikipedia

    en.wikipedia.org/wiki/Ozone_depletion_and...

    The Earth's ozone layer is mainly found in the lower portion of the stratosphere from approximately 20 to 30 kilometres (12 to 19 mi) above Earth. Aant Elzinga wrote in 1996 about the consensus, that the Intergovernmental Panel on Climate Change has tried in the prior two reports a global consensus approach to climate action. [ 11 ]