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UVR on food is known to deplete its antioxidants and causes it to bleach Warriner, Darker colours absorb more radiation than lighter ones; a colour difference in the same type of fabric can provide a significant difference in protection level. Are we protected in the sun when wearing regular clothes? However this is a generalisation and dyes will behave differently based on their composition, not necessarily their displayed colour. Atiemo4 1 Laser and Fibre Optics Centre, Department of Physics, University of Cape Coast, Cape Coast, Ghana 2 Inst. It is obvious that when at the beach or pool the skin is exposed to UV radiation. The effect of UV light on a material can be determined using a number of analytical methods; typically:
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What Is Sun-Safe Clothing?

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"Ultraviolet Radiation Penetration Through Clothing" by Jordan Ramage

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Tests have also shown that you can wash in extra protection and raise the UPF with UV-filtering dyes and other additives. College of Health Sciences Presentations. They are widely used lasers emitting in ultraviolet and vacuum ultraviolet wavelength ranges. If it is too white to see through, you will get a low percentage transmission in the UV too.
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