Understanding the UV Index
May 30, 2009
Prolonged exposure to the ultra violet (UV) rays of the sun has been identified as the major cause of skin cancer, eye problems and cataracts.
The UV index is the measurement of how strong the suns radiation is. The strength may vary from place to place and it is very important to understand the precautions you need to take in order to protect your skin and health from further damage.
Measurement
The Ultra Violet radiation is measured on a linear scale. Higher values on the scale show high strengths of radiation in that particular area. This should be taken as a warning to avoid getting out in the sun.
Parents should also protect their children and encourage them to wear sunglasses, hats and sunscreen when going out.
Using the Index
0-2 is regarded as minimal. There is no major danger in getting out of the house when the index is between these values. However, it is advisable to use sunscreen, hats and sunglasses.
The range of 3-4 on the scale has a little risk while exposed to sunlight for a long time. This risk can be overcome by using sunscreen and wearing long protective clothing.
The 5-6 range is considered as moderate. There is a greater risk of contracting skin diseases and therefore wearing protective clothing with sunglasses and hats is highly recommended.
7-10 is a very high risk range. It is not advisable not to stay out in the sun for a long period of time even with protective clothing and sunscreen.
The range over 10 on the scale has an extreme risk and the dangers are massive. Take all precaution necessary and avoid getting out in the sun too much. Long trousers and long sleeve shirts should be worn together with large brimmed hats, sunglasses and sunscreen.
Extra Care
Fair people must take extra care as their skin tends to get sunburned more quickly then people with darker skin. Sunscreen containing zinc oxide should be used daily for good protection of the skin.
For maximum protection use sunscreen that is at least SPF 15 and contain glycolic acid which repairs the skin and prevents from further damage of the sun.
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