Linked Life Data

18953576

Source:http://linkedlifedata.com/resource/pubmed/id/18953576

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2008-12-22
pubmed:abstractText
The short wavelength cut-off (lambdac), the wavelength of the maximum spectral UV (lambdaMax) of spectral pre-vitamin D3 effective solar UV irradiance (UVD3), and the spectral erythemal UV (UVEry) were compared at 5-min intervals over a 6-month period at solar zenith angles (SZA) ranging from 4.7 degrees to 80 degrees. Averaged over the entire period, lambdac for UVD3 is higher by 1.05 nm than that for UVEry. The lambdaMax is higher for UVD3 compared to UVEry for SZA<approximately 50 degrees. For higher SZA (>55 degrees), the ratio of lambdaMax for UVD3 to that for UVEry is less than 1. As the erythemal action spectrum extends into the UVA, the ratio of UVD3 to UVEry irradiances decreases with increasing SZA, along with a decrease in the ratio of lambdaMax for UVD3 compared to UVEry. The changes in lambdac and lambdaMax influence both personal UVD3 and UVEry exposure and, to take this into account, a dual calibration technique for polysulphone dosimeters has been developed to simultaneously provide measurements of both types of exposure.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0020-7128
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
11-5
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Comparison of biologically effective spectra for erythema and pre-vitamin D3 synthesis.
pubmed:affiliation
Faculty of Sciences, University of Southern Queensland, Toowoomba, 4350, Australia. parisi@usq.edu.au
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't