Threshold responses in formaldehyde-sensitive subjects - 07/10/17
Abstract |
Patch tests with three low concentrations of formaldehyde were applied continuously in formaldehyde-sensitive subjects for 1 wk. The closed patch test method produced a response to 30 parts per million (ppm) in some subjects by 120 continuous hours of testing. Thirteen subjects then sprayed a 30-ppm formaldehyde solution in an axilla on a double-blind, controlled, 2-wk-use test. Their responses to 30 ppm aqueous formaldehyde indicate that levels below this concentration should be tolerated by sensitive subjects if repeatedly applied to normal skin. Popular formaldehyde-releasing preservatives can be above or below this threshold-eliciting response.
Le texte complet de cet article est disponible en PDF.Vol 1 - N° 1
P. 44-48 - juillet 1979 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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