Evaluation of a high exposure solar UV dosimeter for underwater use

Schouten, Peter W. and Parisi, Alfio V. and Turnbull, David J. (2007) Evaluation of a high exposure solar UV dosimeter for underwater use. Photochemistry and Photobiology, 83 (4). pp. 931-937. ISSN 0031-8655

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Abstract

Solar ultraviolet radiation (UV) is known to have a significant effect upon the marine ecosystem. This has been documented by many previous studies using a variety of measurement methods in aquatic environments such as oceans, streams and lakes. Evidence gathered from these investigations has shown that UVB radiation (280 to 320 nm) can negatively affect numerous aquatic life forms, while UVA radiation (320 to 400 nm) can both damage and possibly even repair certain types of underwater life. Chemical dosimeters, such as polysulphone, have been tested to record underwater UV exposures, and in turn quantify the relationship between water column depth and dissolved organic carbon (DOC) levels to the distribution of biologically damaging UV underwater. However, these studies have only been able to intercept UV exposures over relatively short time intervals. This paper reports on the evaluation of a high exposure UV dosimeter for underwater use. The UV dosimeter was fabricated from Poly (2,6-dimethyl-1, 4-phenylene oxide) (PPO) film. This paper presents the dose response, cosine response, exposure additivity and watermarking effect relating to the PPO dosimeter as measured in a controlled underwater environment and will also detail the overnight dark reaction and UVA and visible radiation response of the PPO dosimeter which can be used for error correction to improve the reliability of the UV data measured by the PPO dosimeters. These results show that this dosimeter has the potential for long-term underwater UV exposure measurements.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited in accordance with the copyright policy of the publisher. The definitive version is available at www.blackwell-synergy.com.
Depositing User: Dr David Turnbull
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 11 Oct 2007 01:06
Last Modified: 02 Jul 2013 22:44
Uncontrolled Keywords: ultraviolet radiation; UV; marine; aquatic; underwater use; dosimetry; dosimeter
Fields of Research (FOR2008): 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 (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: doi: 10.1111/j.1751-1097.2007.00085.x
URI: http://eprints.usq.edu.au/id/eprint/2455

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