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What is the UV Index?


Some exposure to sunlight can be enjoyable; however, too much could be dangerous. Overexposure to the sun's ultraviolet (UV) radiation can cause immediate effects such as sunburn and long-term problems such as skin cancer and cataracts. The UV Index, which was developed by the National Weather Service and the U.S. Environmental Protection Agency (EPA), provides important information to help you UV international colour codesplan your outdoor activities to prevent overexposure to the sun's rays. The UV Index provides an indicator of the expected risk of overexposure to the sun. The Index measures UV intensity levels on a scale of 1 to 11+, where low indicates a minimal risk of overexposure and 11+ means an extreme risk. The UV Index takes into account clouds and other local conditions that affect the amount of UV radiation reaching the ground. By taking a few simple precautions, you can greatly reduce your risk of sun-related illnesses.

Sun Safety Steps

  • Wear sunscreen with number 30 SPF or above.
  • Use six-hour or eight-hour waterproof brands.
  • Remember waterproof or sweatproof sunscreens are not necessarily rubproof.
  • Apply sunscreens liberally.
  • Remember hats and shade do not protect from reflected UV rays.
  • Remember the sun is strongest from 10 a.m. until 4 p.m.
  • Remember most sunscreens take five to 15 minutes to adhere; avoid water and sweating for that time.
  • Do not use tanning beds because of the high levels of UV radiation involved.
  • Tightly-woven fabrics, such as cotton denim, give the best protection from UV rays.