News tagged with uv radiation

Related topics: skin cancer

Could compact fluorescent bulbs pose skin cancer risk?

(HealthDay) -- As the United States bakes under the summer sun, dermatologists often warn of cancer risks posed by ultraviolet (UV) sunlight. But research now points to a new and ubiquitous indoor source of the ...

Aug 03, 2012
popularity 4.4 / 5 (8) | comments 7 | with audio podcast

Sunburnt Australia to pull plug on sunbed tans

Jay Allen used to love having what he thought was a healthy tan -- so much so that he would regularly expose his body to the lights of a sunbed to ensure he maintained his overall colour.

Feb 19, 2012
popularity 3.4 / 5 (5) | comments 0

Human skin begins tanning in seconds, and here's how

We all know that human skin tans after days spent in the sun. That relatively slow process has known links to ultraviolet (and specifically UVB) exposure, which leads to tanning only after it damages the DNA of skin cells. ...

Nov 03, 2011
popularity 5 / 5 (1) | comments 1

Ultraviolet

Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 10 nm to 400 nm, and energies from 3 eV to 124 eV. It is so named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet.

UV light is found in sunlight and is emitted by electric arcs and specialized lights such as black lights. As an ionizing radiation it can cause chemical reactions, and causes many substances to glow or fluoresce. Most people are aware of the effects of UV through the painful condition of sunburn, but the UV spectrum has many other effects, both beneficial and damaging, on human health.

This text uses material from Wikipedia licensed under CC BY-SA