United States Environmental Protection Agency: Information on UV. Learn about the EPA’s Sunwise School Program. Find out what the UV index is and how it is calculated. The EPA Web site provides important information on health effects of overexposure to the sun as well as actions for sun protection including sun protection for children.

World Health Organization. The Web site provides an explanation of UV radiation, major health concerns (skin, eye, and immune system), health costs, and protective measures.

This Weather Channel: Site provides a U.S. UV index forecast.

The AccuWeather site is another hat forecasts the UV index for the U.S.

The American Cancer Society has an online search function with several sites about UV radiation within the ACS’s web site. Don’t forget to take “The Ways of the Ray’s Quiz” and find out how to order fact sheets.

The American Academy of Ophthalmology.

The Educator's Reference Desk