Inferring ultraviolet anatomical exposure patterns while distinguishing the relative contribution of radiation components

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Serval ID
serval:BIB_49E22FD3734B
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Inferring ultraviolet anatomical exposure patterns while distinguishing the relative contribution of radiation components
Journal
Radiation Processes in the Atmosphere and Ocean (IRS2012) : proceedings of the International Radiation Symposium (IRC/IAMAS), 6-10 August 2012, Dahlem Cube, Free University, Berlin
Author(s)
Vuilleumier Laurent, Milon Antoine, Bulliard Jean-Luc, Moccozet Laurent, Vernez David
ISSN
0094-243X
Publication state
Published
Issued date
2013
Peer-reviewed
Oui
Volume
1531
Pages
792-796
Language
english
Abstract
Exposure to solar ultraviolet (UV) radiation is the main causative factor for skin cancer. UV exposure depends on environmental and individual factors, but individual exposure data remain scarce. While ground UV irradiance is monitored via different techniques, it is difficult to translate such observations into human UV exposure or dose because of confounding factors. A multi-disciplinary collaboration developed a model predicting the dose and distribution of UV exposure on the basis of ground irradiation and morphological data. Standard 3D computer graphics techniques were adapted to develop a simulation tool that estimates solar exposure of a virtual manikin depicted as a triangle mesh surface. The amount of solar energy received by various body locations is computed for direct, diffuse and reflected radiation separately. Dosimetric measurements obtained in field conditions were used to assess the model performance. The model predicted exposure to solar UV adequately with a symmetric mean absolute percentage error of 13% and half of the predictions within 17% range of the measurements.
Using this tool, solar UV exposure patterns were investigated with respect to the relative contribution of the direct, diffuse and reflected radiation. Exposure doses for various body parts and exposure scenarios of a standing individual were assessed using erythemally-weighted UV ground irradiance data measured in 2009 at Payerne, Switzerland as input. For most anatomical sites, mean daily doses were high (typically 6.2-14.6 Standard Erythemal Dose, SED) and exceeded recommended exposure values. Direct exposure was important during specific periods (e. g. midday during summer), but contributed moderately to the annual dose, ranging from 15 to 24% for vertical and horizontal body parts, respectively. Diffuse irradiation explained about 80% of the cumulative annual exposure dose.
Keywords
Ultraviolet Rays, Occupational Exposure, Risk Assessment, Models, Theoretical, Computer Simulation, Imaging, Three-Dimensional, Skin Neoplasms
Web of science
Open Access
Yes
Create date
10/02/2014 17:20
Last modification date
20/08/2019 13:57
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