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Skin Cancer

Causes and Risk Factors - What Causes Skin Cancer?

There are three types of UV radiation: A, B, and C. All three are dangerous and able to penetrate skin cells. UVA is the most common on earth, and is harmful to the skin. UVB is less common because some of it is absorbed by the ozone layer. It is less harmful than UVA, but can still cause damage. UVC is the least dangerous because although it can cause the most damage to the skin, almost all of the UVC rays are absorbed by the ozone layer.

Ultraviolet Light and Skin Cancer - opens in new window

"Ultraviolet Light and Skin Cancer" [1 min 6 sec]

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