HOW HARMFUL UV LIGHT IS?





Overexposure to UV-radiation can cause skin cancer either via the direct DNA damage or indirect DNA damage mechanism. UVA & UVB have both been implicated in causing DNA damage resulting in cancer. Sun exposure between 10am and 4pm is most intense and therefore most harmful. Natural (sun) & artificial UV exposure are associated with skin cancer, Since sunbeds cause mostly indirect DNA damage their use is associated with the deadliest form of skin cancer, malignant melanoma.





DNA readily absorbs UV-B radiation, which commonly changes the shape of the molecule in one of several ways. The illustrations below illustrates one such change in shape due to exposure to UV-B radiation. Changes in the DNA molecule often mean that protein-building enzymes cannot "read" the DNA code at that point on the molecule. As a result, distorted proteins can be made, or cells can die.





HARMFUL uv LIGHT CAUSE IN COLOUR FADING



The sun is 93 million miles away from the earth. Radiation from this distant source, including Ultraviolet (UV) radiation, enters homes through windows. UV radiation may increase the fading of furnitures, carpets, draperies and artworks.


Window film is the combination of a form of transparent plastic and an adhesive, which creates a light, reflective covering for windows. Window films are available for both commercial and residential use. These films provide a nearly invisible barrier.