No, this is not about lighting. Today we will discuss the ins and outs ofultraviolet radiation.Now, I've got to believe that the sun is really not bad for us. If it were,humans would not have flourished on the planet. Of course, most things shouldbe done in moderation. A little sun is fine for body and soul,damages the skin.
The level of ultraviolet radiation is directly proportioned to sunshineintensity. The temperature plays no role other than it influences how muchclothing one might be wearing. The UV Index is greatest when the sun is high inthe sky; least when the sun is low on the horizon. Therefore, it follows thatin the Northern Hemisphere the UV index is highest from May through July.
Other factors such as reflected light play an important role in the quantity ofburning rays impacting the skin. Consider a walk along the beach during thelate afternoon when reflected rays off the ocean can still cause sunburn. Solarrays are also reflected off sandy soil, clouds and even tinted glass.
The ultraviolet index is a scale from 1 to 11 with the later being the mostextreme. When the ultraviolet index reaches 7 or higher, sunburn can happen ina matter of minutes depending on skin type and previous conditioning. In otherwords if you are as white as a ghost and you lay out on a Florida beach in May,you are in big trouble. I know this because I was dumb enough to do it.
Story by AccuWeather.com Senior Meteorologist John Kocet.
