Tropospheric ozone reduces human exposure to harmful ultraviolet-B (UV-B) radiation.
A 10-ppb decrease in seasonal average concentrations of ozone (about 20%) is estimated to lead to increases in cancers and cataracts valued at $0.29 billion to $1.1 billion annually.
EPA in its ongoing review of the National Ambient Air Quality Standard for ozone should set a standard to minimize all identifiable health effects, including UV-B radiation-related effects.
If these estimates are confirmed, this approach may reduce avoidable cancers, cataracts, and deaths by leading to a different standard than that recently proposed in a program already costing more than $20 billion annually.
Mots-clés Pascal : Pollution air, Norme qualité air, Troposphère, Ozone, Irradiation UV
Mots-clés Pascal anglais : Air pollution, Air quality standard, Troposphere, Ozone, Ultraviolet irradiation
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0215730
Code Inist : 001D16C01. Création : 21/05/1997.