Solar UVB radiation is prejudicial to the health of humans in a number of ways.
Erythema and photodermatoses are acute reactions of the skin; keratitis and conjunctivitis are acute reactions of the eye.
Various types of skin cancer, accelerated aging of the skin, and cataract formation in the crystalline lens are reactions that appear with great latency.
UV radiation can also cause damage to the immune system and DNA.
For the period 1981-1991, an increase in erythemal effective UVB radiation of +(7+-4)% per decade was measured in a non-polluted high mountain area (Jungfraujoch, 3576 m a.s.l., Switzerland).
This increase is related to a decrease in stratospheric ozone.
The effects on human health are discussed.
A 10% ozone reduction increases non-melanoma skin cancer by 26% and cataract by 6 to 8%.
Mots-clés Pascal : Rayonnement solaire, Rayonnement UVB, Ozone, Variation géographique, Epidémiologie, Effet biologique, Environnement, Facteur milieu, Stratosphère, Homme
Mots-clés Pascal anglais : Solar radiation, UVB radiation, Ozone, Geographical variation, Epidemiology, Biological effect, Environment, Environmental factor, Stratosphere, Human
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 94-0072210
Code Inist : 002A08F01. Création : 199406.