Personal solar UV Exposure Measurements Employing Modified Polysulphone with an Extended Dynamic Range

Authors

  • Alfio V. Parisi,

    Corresponding author
    1. Centre for Astronomy, solar Radiation and climate, Faculty of Sciences, University of Southern Queensland, Toowoomba, Australia
      *To whom Southern Queensland, Toowomba 4350, Australia, Fax: 61-7-4631; e-mail: parisi@usq.edu.au
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  • Michael G. Kimlin

    1. National Ultraviolaet Monitoring Center, Department of Physics and Astronomy, University of Georgia, Athens, GA
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  • This reserch was presented in part at the International Symposium on Optical Science and Technology, 4–8 august 2003, San diego, CA.

  • Posted on the website on 29 March 2004

*To whom Southern Queensland, Toowomba 4350, Australia, Fax: 61-7-4631; e-mail: parisi@usq.edu.au

ABSTRACT

Polysulphone dosimeters using a simple to use filter have been developed and tested to provide an extended dynamic measurement range of personal solar W exposures over an extended period (3 to 6 days). At a Southern Hemisphere subtropical site (27.6°S, 151.9°E), the dynamic range of the filtered polysulphone allowed measurements of erythemal exposures to approximately 100 minimum erythemal dose (MED) for a change in optical absorbance at 330 nm (AA330) of 0.35. In comparison, unfiltered polysulphone dosimeters were exposed to approximately 8 MED for the same AA330. The error associated with the use of the filtered polysulphone dosimeters is of the order of ±15%, compared with ±10% of the unfiltered variety. The developed filtered polysulphone dosimeter system allowed the measurement of erythemal UV exposures over 3 to 6 days at a subtropical site without the need to replace the dosimeters because of saturation. The results show that longer-term measurement programs of personal solar UV have been made more feasible with the use of these polysulphone dosimeters with an extended dynamic range compared with unfiltered polysulphone dosimeters.

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