Reduction in the personal annual solar erythemal ultraviolet exposure provided by Australian gum trees

Parisi, Alfio and Kimlin, Michael G. and Wong, J. C. F. and Lester, Rick A. and Turnbull, David J. (2000) Reduction in the personal annual solar erythemal ultraviolet exposure provided by Australian gum trees. Radiation Protection Dosimetry, 92 (4). pp. 307-312. ISSN 0144-8420

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Abstract

The fraction and the distribution of the personal daily solar erythemal UV exposure were assessed for the shade provided by Australian gum trees in each of the four seasons to allow evaluation of the reduction in the personal UV exposure in tree shade over a year. The personal annual erythemal UV exposures in the tree shade ranged from 2,510 SED (Standard Erythema Dose) for the vertical part of the ear to 8,016 SED for the vertex of the head compared to 14,834 SED to a horizontal plane in full sun. The erythemal UV seasonal exposures for 15 minute intervals on a horizontal plane in full sun in winter are comparable to the UV exposure to the vertex of the head in shade in autumn and spring. The UV exposure in the tree shade for summer, is approximately 20% less than the full sun exposure in autumn. The reduced personal annual erythemal UV exposures due to the tree shade provided reductions by a factor of 2 to 3 and 4 to 6 in the contribution to the risk of basal cell carcinomas and squamous cell carcinomas respectively compared to not employing the protection of the tree shade.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited according to Publisher's requirements. This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Radiation Protection Dosimetry following peer review.
Depositing User: Assoc Prof Alfio Parisi
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 11 Oct 2007 00:34
Last Modified: 14 Nov 2013 01:57
Uncontrolled Keywords: solar; UV; trees; shade
Fields of Research (FOR2008): 02 Physical Sciences > 0299 Other Physical Sciences > 029999 Physical Sciences not elsewhere classified
04 Earth Sciences > 0401 Atmospheric Sciences > 040103 Atmospheric Radiation
02 Physical Sciences > 0299 Other Physical Sciences > 029904 Synchrotrons; Accelerators; Instruments and Techniques
Socio-Economic Objective (SEO2008): C Society > 92 Health > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920117 Skin and Related Disorders
URI: http://eprints.usq.edu.au/id/eprint/1085

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