1. OZONE the good the bad and the ugly O3O3O3O3

2. Poll results 2008

3. Discovery to recovery http://www.youtube.com/watch?v=A U0eNa4GrgU&safety_mode=true&per sist_safety_mode=1&safe=active

4. What is ozone? O3O3O3O3

5. Good Ozone  Located in stratosphere  Protects us from UV rays

6. Good Ozone  Without it: –More skin cancer –Cataracts –stunted plant growth –Weakens human immune system

7. Good ozone  “hole” was caused by  CFCs (chlorofluorcarbons) –Used in coolants (refrigerators, Air conditioners) –Foam –solvents

8. Ozone “hole” 2 nd smallest in 20 years!  Nov. 9, 2012

9. Montreal Protocol  Met in 1987 to phase out CFC’s- worldwide!  Replaced with HFCs

10. Future ozone levels if no Montreal Protocol http://en.wikipedia.org/wiki/File:Futu re_ozone_layer_concentrations.gif

11. Ozone hole? What do you think?

12. Euro version  2008  9:49-m stop at 6:47 http://sciencestage.com/v/61381/ozo ne-layer:-repairing-our-ozone-layer- montreal-protocol.html

13. BAD OZONE  Located in troposphere  Sunlight + heat + NO x + VOC = bad ozone

14. Sources of BAD ozone  NOx and VOC are in –Car exhaust –Gasoline vapors –Chemical solvents –Coal electric plants

15. Problems with bad ozone  Smog  Inflames lung tissues

16. Ozone Action Days Michigan  http://www.semcog.org/OzoneAction.aspx http://www.semcog.org/OzoneAction.aspx http://www.semcog.org/OzoneAction.aspx  The Ozone Action season has ended for 2012. There were 20 Ozone Action days this year. Thank you for taking steps to keep the air cleaner in Southeast Michigan!

17. Ozone action days  Occur in summer  Usually peak in mid afternoon  What NOT to do:  Fill up gas tanks  Use gas engines  exercise

19. What is wrong with this article?