So you give 4 +1, nice from you because you think only about money but you know one day ..

I can't believe you are so blind and superficially ..

You just not realize we are already exposed in very high doses of EM radiation and ultraviolet radiation ..

Earth feel that very much also humans and animals, but you must know some things to see that ..

Never in history we have such a loss of ozone layer, just think about that one and learn a little about EM radiation ..

Harmful effects

An overexposure to UVB radiation can cause sunburn and some forms of skin cancer. However the most deadly form - malignant melanoma - is mostly caused by the indirect DNA damage (free radicals and oxidative stress). This can be seen from the absence of a UV-signature mutation in 92% of all melanoma.[17] In humans, prolonged exposure to solar UV radiation may result in acute and chronic health effects on the skin, eye, and immune system.[18] Moreover, UVC can cause adverse effects that can variously be mutagenic or carcinogenic.[19]

UVC rays are the highest energy, most dangerous type of ultraviolet light. Little attention has been given to UVC rays in the past since they are filtered out by the atmosphere. However, their use in equipment such as pond sterilization units may pose an exposure risk, if the lamp is switched on outside of its enclosed pond sterilization unit.

On April 13, 2011 the International Agency for Research on Cancer of the World Health Organization classified all categories and wavelengths of Ultraviolet Radiation as a Group 1 carcinogen. This is the highest level designation for carcinogens and means "There is enough evidence to conclude that it can cause cancer in humans".


Cancer risk
“ Ultraviolet (UV) irradiation present in sunlight is an environmental human carcinogen. The toxic effects of UV from natural sunlight and therapeutic artificial lamps are a major concern for human health.

[link to en.wikipedia.org]