Extreme UV index and solar exposures at Plateau Rosa (3500m a.s.l.) in Valle d'Aosta region, Italy

Casale, Giuseppe R. and Siani, Anna Maria and Diemoz, Henri and Agnesod, Giovanni and Parisi, Alfio V. and Colosimo, Alfredo (2015) Extreme UV index and solar exposures at Plateau Rosa (3500m a.s.l.) in Valle d'Aosta region, Italy. Science of the Total Environment, 512-513. pp. 622-630. ISSN 0048-9697

Abstract

The purpose of this study is to assess personal exposures of skiers at the Alpine site of Plateau Rosa (45.9°N, 7.7°E,
3500m a.s.l.), in the Valle d'Aosta region, Italy. The campaign was carried out on July 12th, 2011 during the summer ski season. A peak UVI value of 12.3, among the highest in Europe, was recorded on that day. Personal exposures (PE) were quantified using both polysulphone (PS) and poly-dimethyl phenylene oxide (PPO) dosimeters
attached vertically to the cap because it is representative of the vertically oriented face of skiers. Exposure ratio
(ER) defined as the ratio between PE and the corresponding ambient dose (i.e. erythemally weighted dose received by a horizontal surface) measured by a broad-band radiometer during the same exposure time of the subjects, was used to compare the results with previous studies. Skin color was also measured on the inner upper arm and on the cheek and differences in ITA (Individual Typology Angle) and a* (redness) values before and after exposure, were statistically analyzed. During the exposure period, the median PE (with PS)was 1.47kJm−2 and that obtained by PPO was 1.15kJm−2.
The median of the ERs was 0.65 (min: 0.50, max: 0.83) considering the cumulative PS exposure and 0.46 (min:
0.29, max: 0.95) for PPO. An increase in ITAs on the exposed site (i.e. the skin became lighter) was observed
after exposure. These results indicate that: a) for some skiers, the exposures were similar to those received on
the horizontal plane; and b) the targeted population showed exposures above the occupational threshold limit
value (TLV) defined by ICNIRP; c) the use of physical sunscreens which tend to leave a white cast, might have reduced skin color change. Nevertheless possible visible sun-induced skin-color changes could be observed after
longer time intervals after exposure.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2015 Elsevier B.V. Permanent restricted access to published version due to publisher copyright policy.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 27 Mar 2015 04:42
Last Modified: 07 Feb 2018 04:53
Uncontrolled Keywords: UV; erythema; skin cancer; skiers; dosimeter; polysulphone; PPO
Fields of Research : 10 Technology > 1004 Medical Biotechnology > 100402 Medical Biotechnology Diagnostics (incl. Biosensors)
02 Physical Sciences > 0299 Other Physical Sciences > 029901 Biological Physics
04 Earth Sciences > 0401 Atmospheric Sciences > 040103 Atmospheric Radiation
Socio-Economic Objective: C Society > 92 Health > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920117 Skin and Related Disorders
Identification Number or DOI: 10.1016/j.scitotenv.2015.01.049
URI: http://eprints.usq.edu.au/id/eprint/26953

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