Stratospheric ozone and UV-B measurements at Saturna Island, B.C. : 1994 annual report / Bill Taylor. : En57-45/95-01E-PDF

"The average total column ozone over Saturna Island measured 5.5 percent below the pre-1980 mean in 1994. This compares to the national average of 3.1 percent below pre-1980 values for the same period. These figures represent an improvement over 1993 when the differences were -8.1 percent for Saturna and -7.7 percent for Canada. The UV Index exceeded the pre-1980 mean by a full point on numerous occasions during the summer months and by two full points during spring. Such elevated UV values are consistent with depressed ozone thicknesses which may be attributed to natural causes as well as anthropogenic depletion of the ozone layer."--Summary.

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