Ultraviolet lys: Forskelle mellem versioner

 

Solbadning har en gavnlig virkning på visse hudforandringer og hudsygdomme. [[Niels Finsen]] var pionér på dette område. Han indførte bl.a. UV-behandling af hudtuberkulose i slutningen af 1800-tallet.

 

====Vand, havvand og UVB-lys====

<ref>[http://www.macam.com/refer.htm Fra: Penetration of solar UVB radiation in shallow tropical waters and its potential biological effects on coral reef; results from the central Indian Ocean and Andaman Sea. Richard P. Dunne, Barbara E. Brown. Department of Marine Science and Costal Management, University of Newcastle, Newcastle upon Tyne NE1 7RU, United Kingdom. Marine Ecology Progress Series Vol. 144: pp 109-118, 1996] Citat: "...Penetration of solar UVB radiation in shallow tropical waters and its potential biological effects on coral reef; results from the central Indian Ocean and Andaman Sea...Ed (UVB) at 5 m depth was found to decrease to 12% of the incident irradiance at the mid ocean atoll, to 2% for the high island site, and to 0.4% in the turbid waters of the inshore reef. A 1% Ed(UVB) depth was computed for each site and found to be 11, 6 and 3 m respectively..."</ref>

<ref>[http://www.yorku.ca/lel/ Amphibians and Ultraviolet Radiation] Citat: "...The more DOC [Disolved Organic Carbon], the less UVB that will penetrate beyond just the upper surface layers of water. For example, in a marsh with 13 mg C per liter of water, the surface level of UVB was reduced to 55% at just 1.4 cm deep; at 3.0 cm, the UVB was less than 5% of surface values, and at 5 cm depth, the UVB was just 2% of surface..."</ref>

 

==Kilder/referencer==