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Chemical Oceanography, 4th Edition
% Change in Ozone
–20
–10
0
10
20
–30
–20
–10
0
10
20
30
40
50
% Change in Biologically Damaging UV Flux
Figure 5.35
The changes in the biologically damaging ultraviolet (UV) flux as a function of changes in the ozone levels.
Year
1960
1968
1976
1984
1992
0
25
50
75
100
125
150
175
200
225
250
275
300
325
350
Mean October Ozone Levels (Dobson units)
Figure 5.36
The decline of springtime ozone over the Antarctic from 1956 to 1988.