0000000000402275
AUTHOR
Yolanda Sola
The UV Index on the Spanish Mediterranean Coast¶
An analysis is made of measured ultraviolet erythemal solar radiation (UVER) data recorded during the year 2003 by the networks of the Catalan Weather Service and the Environment Department of Valencia (both on the Spanish Mediterranean coast). Results show a latitudinal variation at sea level, of 3-4% per degree and an increase with altitude of 10% per km. Based on these data the UV Index has been evaluated for the measuring stations. The maximum experimental value of the UV Index was around 9 during the summer, although higher values were recorded at two stations, one at the highest elevation and the other at the lowest latitude. The annual accumulated doses of irradiation on a horizontal…
Determination of Minimal Erythema Dose and Anomalous Reactions to UVA Radiation by Skin Phototype
Background: Phototesting is a technique that assesses the skin’s sensitivity to UV radiation by determining the smallest dose of radiation capable of inducing erythema (minimal erythema dose [MED]) and anomalous responses to UV-A radiation. No phototesting protocol guidelines have been published to date. Methodology: This was a multicenter prospective cohort study in which 232 healthy volunteers were recruited at 9 hospitals. Phototests were carried out with solar simulators or fluorescent broadband UV-B lamps. Each individual received a total of 5 or 6 incremental doses of erythemal radiation and 4 doses of UV-A radiation. The results were read at 24 hours. Results: At hospitals where sola…
Determinación de la dosis eritemática mínima y reacciones anómalas a radiación ultravioleta A según fototipo
Resumen Antecedentes La tecnica del fototest evalua la sensibilidad de la piel a la radiacion ultravioleta (RUV) mediante la determinacion de la minima dosis de radiacion capaz de producir eritema (dosis minima eritematica [DEM]) y la respuesta anomala a UVA. No existen guias protocolizadas para la tecnica del fototest. Metodologia Estudio multicentrico de cohortes prospectivo. Un total de 232 voluntarios sanos fueron reclutados en 9 centros hospitalarios. El fototest se realizo con simuladores solares (SS) o lamparas fluorescentes de UVB de banda ancha (UVBBA). Cada sujeto recibio un total de 5 o 6 dosis progresivas de radiacion eritematica y 4 dosis de UVA. La lectura se realizo a las 24 …
Altitude effect in UV radiation during the Evaluation of the Effects of Elevation and Aerosols on the Ultraviolet Radiation 2002 (VELETA-2002) field campaign
[1] The Evaluation of the Effects of Elevation and Aerosols on the Ultraviolet Radiation 2002 (VELETA-2002) field campaign was designed to study the influence of aerosols and altitude on solar UV irradiance. The altitude effect (AE) was evaluated for UV irradiance under cloudless conditions by taking spectral and broadband measurements in SE Spain in the summer of 2002 at three nearby sites located at different heights (680 m, 2200 m, and 3398 m). A spectral radiative transfer model (Santa Barbara DISORT Atmospheric Radiative Transfer (SBDART)) was also applied, mainly to evaluate the tropospheric ozone impact on AE. Results are related to the optical properties and air mass origin of the a…