Ozone layer, is it disappearing? - PowerPoint PPT Presentation

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Ozone layer, is it disappearing?

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Ozone layer, is it disappearing? Protects against Ultraviolet radiation UV-radiation can give you skin cancer There is: UVA, UVB and UVC UVC most dangerous UVA ... – PowerPoint PPT presentation

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Title: Ozone layer, is it disappearing?


1
Ozone layer, is it disappearing?
2
Protects against Ultraviolet radiation
  • UV-radiation can give you skin cancer
  • There is
  • UVA, UVB and UVC
  • UVC most dangerous
  • UVA least dangerous
  • UVC stopped by ordinary oxygen
  • UVB stopped by Ozone
  • UVA not stopped

3
Ozone hole only over Antarctica
4
The ozone miracle
  • Ozone is created when UVC collide with ordinary
    oxygen. UVC is completely stopped by oxygen
  • Oxygen is created when UVB collide with ozone.
  • Ozone will never disappear

5
Ozone in Sweden
6
Ozone variation
7
Ozone in the tropics
8
The strongest UV radiation
9
Ozone layer globally
10
Important facts about ozone
  • Thinnest at equator
  • Thickest at the northern hemisphere
  • Only ozone hole around south pole
  • Most ozone is produced at the equator and
    transported by the winds to the north and south.

11
Ozone layer will never disappear in the future.
  • We have stopped dangerous HFC-gases that made the
    ozone layer thinner.
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