Regional Ozone Depletion
Name: K Hopkins
In the region of 30-32N latitude and 92-96W longitude, does the
column ozone appear to be thinning in late June and early July? If so, should
this be cause for alarm? Please explain.
Northern hemisphere ozone is a bit thinner than usual this year
(1993), presumably because of sulfur droplets ejected into the upper
atmosphere by Mt. Pinatubo eruption. As usual, I am wearing abroad brimmed hat
and using a sunscreen with a skin protection factor (SPF) of 15 or more to
prevent skin cancer. That is a good idea regardless of how thin the ozone may
be, but thinner ozone screens less ultraviolet light, thus making it easier to
damage skin cells with sunburn and tanning.
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Update: June 2012