Erythemal irradiances of filtered ultraviolet radiation

Parisi, A. V. and Wong, J. C. F. (1997) Erythemal irradiances of filtered ultraviolet radiation. Physics in Medicine and Biology, 42 (7). pp. 1263-1275. ISSN 0031-9155

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Abstract

A spectrum evaluator (3cm x 3cm) employing four passive dosimeters has been used to evaluate the time averaged spectrum to allow calculation of the erythemal exposures resulting from the predominantly UVA component of filtered solar ultraviolet radiation. An exposure interval of approximately 20 minutes to autumn and spring sunshine was required for the spectrum evaluator to allow evaluation of the filtered source spectrum. For a clear spring day an erythemal exposure of 0.85 MED to a horizontal plane and 0.38 to a vertical plane over a six hour period was measured within a glass enclosure. For a partially cloudy day six weeks later, these were 0.89 MED and 0.44 MED for the horizontal and the vertical planes respectively. The exposure is predominantly due to the UVA component of the solar radiation. The ratios of the filtered to the unfiltered erythemal exposures within and outside the enclosure respectively ranged from 0.08 to 0.18 throughout the two days.

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Item Type:	Article (Commonwealth Reporting Category C)
Refereed:	Yes
Item Status:	Live Archive
Additional Information:	Author's version deposited according to Publisher's requirements.
Faculty / Department / School:	Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited:	11 Oct 2007 00:36
Last Modified:	26 Sep 2016 02:53
Uncontrolled Keywords:	filtered; UV; solar; erythema; UVA; spectrum; MED
Fields of Research :	02 Physical Sciences > 0299 Other Physical Sciences > 029999 Physical Sciences not elsewhere classified 02 Physical Sciences > 0299 Other Physical Sciences > 029904 Synchrotrons; Accelerators; Instruments and Techniques 04 Earth Sciences > 0401 Atmospheric Sciences > 040103 Atmospheric Radiation
Socio-Economic Objective:	E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI:	10.1088/0031-9155/42/7/003
URI:	http://eprints.usq.edu.au/id/eprint/1183

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