The concept of systemic photoprotection by dietary means is gaining momentum. Skin is continuously exposed to ultraviolet (UV) radiation, the major cause of skin disorders such as sunburn, photodamage, and nonmelanoma skin cancer. Most of the erythemal annual UV dose is encountered under nonvacation conditions, when no sunscreen is applied. In the absence of topically added compounds, skin prot...

OBJECTIVES Occupational ultraviolet (UV) exposure was evaluated in a population-based sample in France. METHODS A random survey was conducted in 2012 in individuals aged 25 to 69 years. The median daily standard erythemal UV dose (SED) was estimated from exposure time and place and matched to satellite UV records. RESULTS A total of 889 individuals were exposed to solar UV with highest dose...

Post-UV treatment of the gray, short-tailed opossum Monodelphis domestica with photoreactivating light (320-400 nm) suppressed the appearance of UV-induced erythema as evidenced by an increase in the dose of UV required to elicit an erythemal response. The average erythema dose for animals held in the dark following UV exposure was 620 +/- 40 J/m2, whereas 2460 +/- 110 J/m2 were required for er...

Taking sun sheltered meal and tea breaks around solar noon can reduce occupational exposure to solar erythemal ultraviolet (UV) radiation by outdoor workers. The research presented in this paper has quantified the reductions in solar UV exposure to be expected in summer and winter for different scenarios of break times for this high UV exposure occupational group of the population.

abstractbackground: although electronic portal imaging devices (epids) have originally developed for positioning verification, they can also be used for dosimetric purposes. in the current work, the dose response of minimum detectable thickness of a scanning liquid filled ion chamber epid, slic-epid, and the variation of transmitted dose with the shift of inhomogeneity inside of phantom was als...

Background: Objective of the study was to evaluate conjunctival ultraviolet autofluorescence (CUVAF) device, as an indicator ocular (UV) radiation exposure in pterygium and pinguecula among outdoor workers.Methods: Subjects above 21 years age engaged work were enrolled based on inclusion criteria. A standardized questionnaire administered assess lifetime UV erythemal dose noted from tropospheric...

This paper evaluates the relationship between the cloud modification factor (CMF) in the ultraviolet erythemal range and the cloud optical depth (COD) retrieved from the Aerosol Robotic Network (AERONET) “cloud mode” algorithm under overcast cloudy conditions (confirmed with sky images) at Granada, Spain, mainly for non-precipitating, overcast and relatively homogenous water clouds. Empirical C...