Tuesday, September 20, 2011

Self Protection From UV Radiation

To protect yourself from UV radiation one of the easiest ways to wear dark colored clothes or by wearing a special lotion with sunscreen that can be applied to the hands, feet and neck because the clothes made of cotton and polyester fairly effectively absorb UV radiation, therefore some kind of lotion, so that UV radiation on the skin can be dependent on the value of minimizing the SPF (Sun Protection Factor). SPF value is the comparison between the dose of UV radiation received by the skin without a protective cotton / lotion (ED) at a dose of UV radiation received by a protective skin with a cotton / lotion (EDM), and expressed by the following equation: ED

   
Examples for lotion with an SPF value of 10, then the UV radiation on the skin only 1 / 10 of UV radiation that comes and the 9 / 10 part is absorbed by the lotion. The higher the SPF value for the fabric or lotion, the smaller the UV radiation on the skin. This means more secure from the dangers of UV radiation .

Remember every 1% thinning of the ozone layer by pollution Clorotluoro Carbon (CFC) can increase the risk of skin cancer. BCC and SCC 3% around 1.7%, needs to be further improved our concern for the earth that we live is the socializing that begins CFC regressive free program from home.

 Influence of color on the absorption of UV radiation for the clothes of cotton and polyester.

Catton fabrics

Polyester fabric

Color
SPF

Color

SPF
White
Sky blue
Black
Navy blue
12
18
32
37

White
Rosy
Green
Scarlet
Black

16
19
19
29
34


SPF values ​​are expressed as erythema effective UVR transmitted and absorbed.

SPF

Effective UV is absorbed (%)

Effective UV is passed (%)
10
20
30
40
50
90
95
96,7
97,5
98
10
5,0
3,3
2,5
2,0


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