Comparison between season of the ultraviolet environment in the shade of trees in Australia

A V Parisi; J C F Wong; Michael G Kimlin; D Turnbull; R Lester

doi:10.1034/j.1600-0781.2001.017002055.x

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Comparison between season of the ultraviolet environment in the shade of trees in Australia

Journal article

Open access

Peer reviewed

Comparison between season of the ultraviolet environment in the shade of trees in Australia

A V Parisi, J C F Wong, Michael G Kimlin, D Turnbull and R Lester

Photodermatology Photoimmunology and Photomedicine, Vol.17(2), pp.55-59

2001

DOI: https://doi.org/10.1034/j.1600-0781.2001.017002055.x

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Abstract

erythema

shade

tree

ultraviolet

UVA

Background/Purpose: This paper has considered the erythemal UV (UVery), UVA and visible irradiances in the shade of Australian trees for each season at a sub-tropical southern hemisphere site. Methods: The irradiances in tree shade have been measured with radiometers as a percentage of the irradiances in the sun for each season of the year. Results: Although the solar irradiances are lower in winter, the percentages of the UV in tree shade compared to the UV in full sun are marginally higher (by up to 7%) in the winter compared to summer. The range of percentages for UVery was up to double that of the percentages of the visible waveband. The percentages for UVery were also higher than for the UVA waveband. The percentages of the irradiances in the tree shade compared to full sun are 8-14% lower at noon compared to the morning and afternoon for the UVery waveband. The ratio of UVA to UVery is lower in the tree shade compared to the full sun. Conclusions: The UVA to UVery ratio is expected to be even lower in the tree shade as a result of ozone depletion. This, combined with the visible irradiances in the tree shade not being a reliable indication of the biologically damaging UV irradiances, has consequences for public health and skin cancer prevention.

Details

Title: Comparison between season of the ultraviolet environment in the shade of trees in Australia
Authors: A V Parisi (Author) - University of Southern Queensland
J C F Wong (Author) - Queensland University of Technology
Michael G Kimlin (Author) - University of Southern Queensland
D Turnbull (Author) - University of Southern Queensland
R Lester (Author) - University of Southern Queensland
Publication details: Photodermatology Photoimmunology and Photomedicine, Vol.17(2), pp.55-59
Publisher: Wiley-Blackwell Publishing Inc.
Date published: 2001
DOI: 10.1034/j.1600-0781.2001.017002055.x
ISSN: 0905-4383
Copyright note: Copyright © 2001 Wiley-Blackwell Publishing Inc. This is the peer reviewed version of the following article: Parisi, A V, Wong, J C F, Kimlin, Michael G, Turnbull, D, Lester, R (2001) Comparison between season of the ultraviolet environment in the shade of trees in Australia. Photodermatology Photoimmunology and Photomedicine, Vol. 17, No. 2, pp.55-59, which has been published in final form at http://dx.doi.org/10.1034/j.1600-0781.2001.017002055.x This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99449305202621
Output Type: Journal article

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