Regional: 20 years ago there existed significant atmospheric absorbents for uv light which meant that a longer sun exposure was needed. With epa regulations and cleaner industry, the air is cleaner which means the uv concentration is higher. So in certain parts of the country, sunburn is more easily acquired..
Answered 9/30/2012
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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