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Pollutant of Ozone?

  1. May 24, 2007 #1
    Ok, my area today had an air stagnation advisory, but I was a little confused with the following when reading the explanation in the advisory:

    Can someone give me an explanation on the 'pollutant of ozone'?
     
  2. jcsd
  3. May 25, 2007 #2

    Mk

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    Isn't it that people don't like too much ozone at ground level to breathe?
     
  4. May 25, 2007 #3

    Pythagorean

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    Gold Member

    ozone is O_3, and exists naturally in the ozone layer of the atmosphere. I don't know how it gets made on Earth (or if it just comes down somehow) but I'm pretty sure there's some ionization machines that accidentally make O_3 (if it wasn't an urban myth).
     
  5. May 25, 2007 #4
    I think the O3 in the upper layer stays in place mostly
    we make extra O3 mostly thru eltric devices and some chemical reactions
    high up it is a sheild, and good and needed
    down at near ground level a pollutant, health hazzerd, and unwanted

    the ionic air cleaners do make some
    link on indoor air ionization

    http://www.ilo.org/encyclopedia/?doc&nd=857100213&nh=0
     
  6. May 25, 2007 #5

    D H

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    Tropospheric ozone forms when manmade pollutants (nitrogen oxide, nitrogen dioxide, unburned hydrocarbons, ...) react with oxygen and sunlight. Ozone, when breathed, causes lung damage.
     
  7. May 25, 2007 #6
    O3 is very important in gas in stratosphere for well known reasons.
    The creation of O3 in stratosphere is different from creation of O3 in troposphere. O3 is highly reactive and toxic gas and is considered therefore a polutant in the troposphere where we live.

    The chemistry of tropospheric O3 can be quite involved but it mainly it creation or destruction is dependent on NO (nitric oxide) concentration and also tied to hydroxil chemistry.

    this is for more detailed explanation: www-personal.umich.edu/~sillman/Sillman-webOZONE.pdf
     
  8. May 28, 2007 #7

    Mk

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    Ahhah! So I win! :smile:
     
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