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hi dearfreinds.iam going to talk about serious side effect of uvr. there are 3types of uvr radiation.uvc 200.290nm wich absorb by ozon and atomospher and not reach the earth.uvb290.320nm  this type reach the earth and affect the epidermis.uva2.320.340nmand uva1.340.400nm.this type reachn the earth and affect the dermis  and can penetrate it.early affect of uvr are tanning.inflamation.hyperplasia and local or systemic immuno suppression..the lat affeects are photo aging.photocarcinogesis and keratitis.

Publicity to ultraviolet (UV) radiation is a prime hazard factor for most pores and skin cancers. Daylight is the main source of UV rays. Tanning lamps and beds also are sources of UV rays. Individuals who get a number of UV exposure from these sources are at extra chance for pores and skin most cancers.

Even though UV rays make up simplest a completely small part of the solar’s rays, they are the primary motive of the solar’s unfavourable outcomes on the pores and skin. UV rays harm the DNA of pores and skin cells. Pores and skin cancers begin while this damage influences the DNA of genes that manage pores and skin mobile boom.

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