The sun emits radiation in the form of ultraviolet (UV) radiation. UV radiation is at its highest when and where the sun's rays are the strongest. This means that UV levels will be highest around noon on a clear sunny day, as well as during summer months. UV levels will also be highest near surfaces that reflect sunlight, such as snow or sand. Exposure to UV can cause sunburn, skin aging and eye damage.
Viewer Tip: Stay safe in the sun with these tips:
Before you head outside, check the UV Index at www.epa.gov/sunwise/uvindex.html.
(Sources: EPA SunWise Program. “The Sun, UV, and You: A Guide to SunWise Behavior.” http://www.epa.gov/sunwise/doc/sunuvu.pdf)