The Effects of Ultraviolet Waves

Electromagnetic wave Thesis radiation is energy emitted by electromagnetic waves or particles in moving atoms, and one example of radiation is electromagnetic radiation. This is a type of radiant energy that passes through the universe through electromagnetic waves. These waves are seen in the electromagnetic spectrum. This is the range of all possible electromagnetic radiation frequencies. Waves in the electromagnetic spectrum range from radio waves to gamma rays, and medium waves include infrared rays, visible rays and ultraviolet rays.

Ultraviolet (UV) is a part of the electromagnetic (light) spectrum that reaches the earth from the sun. Because its wavelength is shorter than visible light, it can not be seen with the naked eye. Ultraviolet A (UVA) is a long-lasting ultraviolet ray that can cause long-term damage to the skin, skin aging, and skin cancer. Ultraviolet B (UVB) is a short-term ultraviolet ray that can cause sunburn and skin damage or skin cancer. SPF (or sun protection factor) represents the ability of sunscreen to prevent UVB damage to the skin. If it takes 20 minutes for unprotected skin to start discoloring, using SPF 15 sunscreen theoretically prevents 15 times redness - about 5 hours. Most sunscreens with SPF greater than 15 do a great job in preventing UVB.

Ultraviolet rays exposed to the sun for a long time can cause melanoma and other skin malignancies. Clear evidence suggests that ultraviolet radiation, especially non-ionizing medium wave UVB, is the cause of most nonmelanoma skin cancers, the most common type of cancer in the world. Non-ionizing radio frequency radiation from mobile phones, power transmission, and other similar sources are listed by the World Health Organization (WHO) International Cancer Research Institute as a carcinogen. However, in this study there was no consistent association between cell phone radiation and cancer risk.