Journal article
The relationship between ambient ultraviolet radiation (UVR) and objectively measured personal UVR exposure dose is modified by season and latitude
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, Vol.13(12), pp.1711-1718
2014
Abstract
Despite the widespread use of ambient ultraviolet radiation (UVR) as a proxy measure of personal exposure to UVR, the relationship between the two is not well-defined. This paper examines the effects of season and latitude on the relationship between ambient UVR and personal UVR exposure. We used data from the AusD Study, a multi-centre cross-sectional study among Australian adults (18-75 years), where personal UVR exposure was objectively measured using polysulphone dosimeters. Data were analysed for 991 participants from 4 Australian cities of different latitude: Townsville (19.3°S), Brisbane (27.5°S), Canberra (35.3°S) and Hobart (42.8°S). Daily personal UVR exposure varied from 0.01 to 21 Standard Erythemal Doses (median = 1.1, IQR: 0.5-2.1), on average accounting for 5% of the total available ambient dose. There was an overall positive correlation between ambient UVR and personal UVR exposure (r = 0.23, p < 0.001). However, the correlations varied according to season and study location: from strong correlations in winter (r = 0.50) and at high latitudes (Hobart, r = 0.50; Canberra, r = 0.39), to null or even slightly negative correlations, in summer (r = 0.01) and at low latitudes (Townsville, r = -0.06; Brisbane, r = -0.16). Multiple regression models showed significant effect modification by season and location. Personal exposure fraction of total available ambient dose was highest in winter (7%) and amongst Hobart participants (7%) and lowest in summer (1%) and in Townsville (4%). These results suggest season and latitude modify the relationship between ambient UVR and personal UVR exposure. Ambient UVR may not be a good indicator for personal exposure dose under some circumstances. This journal is © The Royal Society of Chemistry and Owner Societies.
Details
- Title
- The relationship between ambient ultraviolet radiation (UVR) and objectively measured personal UVR exposure dose is modified by season and latitude
- Authors
- J Sun (Author) - Queensland University of TechnologyR M Lucas (Author) - Australian National UniversityS L Harrison (Author) - James Cook UniversityI Van Der Mei (Author) - Menzies Research Institute TasmaniaB K Armstrong (Author) - University of SydneyM Nowak (Author) - James Cook UniversityAlison M Brodie (Author) - Queensland University of TechnologyMichael G Kimlin (Author) - Queensland University of Technology
- Publication details
- Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, Vol.13(12), pp.1711-1718
- Publisher
- Royal Society of Chemistry (R S C) Publications
- Date published
- 2014
- DOI
- 10.1039/c4pp00322e
- ISSN
- 1474-905X
- Organisation Unit
- University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
- Language
- English
- Record Identifier
- 99449829902621
- Output Type
- Journal article
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