Guest Editorial

Archives of Toxicology

, Volume 87, Issue 3, pp 403-405

First online:

Genotoxicity and carcinogenicity of the light emitted by artificial illumination systems

  • Silvio De FloraAffiliated withDepartment of Health Sciences, University of Genoa Email author 


The light delivered by artificial illumination systems, and in particular by halogen quartz bulbs, contains UVA, UVB, and UVC radiation, is genotoxic to both bacterial and human cells and is potently carcinogenic to hairless mice. Since IARC has classified UV radiation in Group 1, any source of UV light poses a carcinogenic hazard to humans. Suitable regulations would be needed in order to control the safety of the light emitted by artificial light sources.