The Green model and its relevance to solar UV risk assessment.

Computation of sunlight exposure doses allows one to valuate the risk of skin cancer types for which not only the action spectrum but also the dose-response relationship are known. The Green model is particularly appropriate for this purpose since it calculates the solar ultraviolet spectral irradiance through an analytical approach and then makes dose computation easy and fast. However, somewhat lengthy preliminary work is required to trace the entire Green model which is presented in several papers and is quite difficult to find, and to sum up the information concerning quantification of the risk of ultraviolet induced carcinogenesis from the existing experimental and epidemiological literature. This present paper provides a brief but complete description of the Green model and a short review concerning risk assessment of carcinogenesis induced by exposure to sunlight. Thus it summarises all the physical and health-related aspects involved in performing this task by applying the Green model in order to assist an interested researcher to quickly assimilate all the necessary information.