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| Description: A Ozone levels in the upper atmosphere in September 2007, the Antarctic spring. Purple indicates the least ozone, with blue,green, and yellow indicating increasingly higher levels. Concentration of CFCs in the upper atmosphere. These pollutants destroy ozone. A worldwide ban on CFCs has successfully halted the rise in CFC concentration. Picture Stats: Views: 83 Filesize: 243.44kB Height: 1042 Width: 755 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47258 |