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- $Unique_ID{BRK02050}
- $Pretitle{}
- $Title{The Shrinking Ozone Layer and Increasing Risks of Exposure to the Sun}
- $Subject{ozone layer cancer skin cancer skin cells stratosphere ultraviolet
- radiation UV-A UV-B basal cell carcinoma squamous cell carcinoma skin cancers
- CFC's chlorine fluorine carbon chlorine fluorine carbons bromine aerosol
- sprays aerosol spray aerosols cataracts sunblockers sunblocks sunblock
- sunbathing suntanning suntan sunburn tanning sunlight}
- $Volume{}
- $Log{
- Anatomy of the Skin*0006701.scf}
-
- Copyright (c) 1993 Tribune Media Services, Inc.
-
-
- The Shrinking Ozone Layer and Increasing Risks of Exposure to the Sun
-
-
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-
- QUESTION: I have always enjoyed baking on the beach and having a great tan to
- show for it. It has the healthy look I really like. Now my mother is all
- over me about this, and keeps telling me that the ozone layer will give me
- cancer. I don't thinks she completely understands this, but then neither do
- I. Can you cast a little light (perhaps sunlight) on this subject? I suppose
- it is something I need to know.
-
- ------------------------------------------------------------------------------
-
- ANSWER: It's not the ozone layer that may cause you to develop skin cancer,
- but the lack of it that may pose the danger. The ozone layer is a part of the
- stratosphere, and its function is to filter out some of the sun's harmful
- rays. For some years now, scientists have watched as the thickness of this
- layer steadily diminished to the point where, in some places in the world,
- harmful ultraviolet radiation is able to reach the surface of the earth.
- There are two types of ultraviolet radiation, UV-A and UV-B. UV-A is the
- type you like for it is responsible for the tan you seek, and the sunburns
- that many of the rest of us suffer. UV-B doesn't give you a tan, but
- penetrates deeper into the skin's layers and can cause damage to the cells
- which are located there. And the result of this damage can be basal and
- squamous cell skin cancers.
- Chemicals called CFC's (for chlorine, fluorine, carbon and in some
- cases, bromine) which are used in air conditioners seem to be the culprit.
- When they get into the upper atmosphere they form compounds which can destroy
- the ozone layer. Although they have been banned for use as a propellant in
- aerosol spray cans as far back as 1978, production of these chemicals is not
- scheduled to halt until the end of this century.
- The number of skin cancers are on the rise, and so are cataracts of the
- eye, and many scientists predict that continuing depletion of the ozone layer
- may dramatically increase the frequency of these ailments, so that by the year
- 2000, more than 1.5 million additional cases of cataracts will be diagnosed.
- However, life styles also play a role in exposure to the sun, with more older
- people spending more time in the sun, and wearing skimpier clothing, short
- sleeved shirts and short pants. Your mother may not have had all the facts
- straight, but she is giving you good advice. Cover up, use strong sun
- blockers or stay out of the sun.
-
- ----------------
-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
-