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Ultraviolet (UV) is an electromagnetic radiation with a wavelength from 10 nm (30 PHz) to 400 nm (750 THz), shorter than that of visible light but longer than ...

What is ultraviolet (UV) radiation? - American Cancer Society


Mar 20, 2015 ... Exposure to ultraviolet (UV) radiation is a major risk factor for most skin cancers. Sunlight is the main source of UV rays. Tanning lamps and ...

Ultraviolet radiation - World Health Organization


Ultraviolet (UV) radiation is part of the electromagnetic spectrum emitted by the sun. Whereas UVC rays (wavelengths of 100-280 nm) are absorbed by the ...

Student's Guide - Ultraviolet Radiation


Simply put, ultraviolet radiation (also known as UV radiation or ultraviolet rays) is ... Other types of electromagnetic radiation are gamma rays, X-rays, visible light, ...

UVA & UVB - SkinCancer.org


May 24, 2013 ... UV radiation is part of the electromagnetic (light) spectrum that reaches the earth from the sun. It has wavelengths shorter than visible light, ...

Definition of Ultraviolet radiation - MedicineNet


Ultraviolet radiation is made up of three types of rays -- ultraviolet A, ultraviolet B, and ultraviolet C. Although ultraviolet C is the most dangerous type of ultraviolet ...

ultraviolet radiation | physics | Britannica.com


Apr 14, 2016 ... Ultraviolet radiation, that portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to ...

Ultraviolet radiation | Define Ultraviolet radiation at Dictionary.com


Ultraviolet radiation definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up now!

Sun Safety: What is Ultraviolet Radiation?


The sun is the energy source that sustains all life on earth. Ultraviolet Radiation( UV) is simply one form of energy coming from the sun. Even though you may ...

UV:harmful effects


The harmful effects from exposure to ultraviolet (UV) radiation can be classified as acute or chronic. The acute effects of UV-A and UV-B exposure are both ...

ultraviolet radiation | Define ultraviolet radiation at Dictionary.com
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Ultraviolet Radiation: How It Affects Life on Earth : Feature Articles


Stratospheric ozone depletion due to human activities has resulted in an increase of ultraviolet radiation on the Earth's surface. The article describes some  ...

Ultraviolet Radiation - Health Physics Society


Ultraviolet (UV) radiation is defined as that portion of the electromagnetic spectrum between x rays and visible light, i.e., between 40 and 400 nm (30–3 eV) .

Ultraviolet Radiation : OSH Answers


Ultraviolet (UV) radiation is similar to visible light in all physical aspects, except that it does not enable us to see things. The light that enables us to see things is ...