Linked Life Data

7803225

Source:http://linkedlifedata.com/resource/pubmed/id/7803225

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1995-2-2
pubmed:abstractText
Sunscreen products are tested normally against a defined solar simulator spectrum that, in ultraviolet (UVB), closely resembles the noontime spectral composition of summer sunlight. Although such a spectrum may define the product for use in the most adverse sunlight conditions, little attention has been given to how such products perform against other natural sunlight spectra. Outdoor clinical trials suggest that indoor testing of sunscreens may overestimate the performance of many products. In this study we compared the predicted efficacy of specific products to a variety of natural sunlight spectra taken at different solar angles and under different atmospheric conditions. We found that a standard product always provides less protection for a natural sunlight spectrum than its label value would suggest. The deviation from the labeled value is the greatest when the sun is low in the sky, i.e., close to the horizon. The deviation is due to the changing ratio of UVA to UVB radiation in natural sunlight. The deviation can be as large as a factor of 2.0.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0905-4383
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
148-53
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Changing the risk spectrum of injury and the performance of sunscreen products throughout the day.
pubmed:affiliation
Rapid Precision Testing Laboratories, Cordova, Tennesse.
pubmed:publicationType
Journal Article, Comparative Study