Atmospheric Ozone Depletion                                                                                             Su...
Upcoming SlideShare
Loading in …5
×

Atmospheric ozone depletion

575 views

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
575
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
6
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Atmospheric ozone depletion

  1. 1. Atmospheric Ozone Depletion Surendra Bam Department of Environmental Sciences, Andhra University, Visakhapatnam, Andhra Pradesh Email: surendra_bam777@yahoo.com OZONE IN OUR ATMOSPHERE THE OZONE DEPLETION PROCESS Montreal Protocol To date, production of banned ozone depleting chemicals has been reduced by 90%. Other ozone depleting chemicals are scheduled to be phased out Antarctica Ozone Hole by 2030. However, use will continue long after production is banned. Why Uncertainty? Even if this reduction in ozone depleting chemicals occurs on schedule, it will take at least 50 to 100 years for the atmospheric ozone layer to return to its state before 1980. This is because once released, these ozone depleting chemicals continue to destroy atmospheric ozone for many years. The most common agents (CFCs) remain active for approximately 50-150 years. References •http://www.esrl.noaa.gov/csd/assessm ents/ozone •http://www.epa.gov/ozone/science •http://www.nasa.gov/ False-color view of total ozone over the Antarctic pole. The purple and blue colors are where there is the least ozone, and the yellows and reds are where there is more ozone.RESEARCH POSTER PRESENTATION DESIGN © 2011www.PosterPresentations.com

×