NDLI: A laboratory investigation of the effectiveness of various skin and surface decontaminants for aliphatic polyisocyanates

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Journal of Environmental Monitoring Vol - 7 Issue - 6

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A laboratory investigation of the effectiveness of various skin and surface decontaminants for aliphatic polyisocyanates

Content Provider	Royal Society of Chemistry (RSC)
Author	Streicher, Robert P. Cullen, Mark R. Sparer, Judy Bello, Dhimiter Redlich, Carrie A. Liu, Youcheng Stowe, Meredith H. Woskie, Susan R.
Copyright Year	2005
Abstract	Isocyanates may cause contact dermatitis and respiratory sensitization leading to asthma. Dermal exposure to aliphatic isocyanates in auto body shops is very common. However, little is known about the effectiveness of available commercial products used for decontaminating aliphatic polyisocyanates. This experimental study evaluated the decontamination effectiveness of aliphatic polyisocyanates for several skin and surface decontaminants available for use in the auto body industry. The efficiency of two major decontamination mechanisms, namely (i) consumption of free isocyanate groups via chemical reactions with active hydrogen components of the decontaminant and (ii) physical removal processes such as dissolution were studied separately for each decontaminant. Considerable differences were observed among surface decontaminants in their rate of isocyanate consumption, of which those containing free amine groups performed the best. Overall, Pine-Sol® MEA containing monoethanolamine was the most efficient surface decontaminant, operating primarily via chemical reaction with the isocyanate group. Polypropylene glycol (PPG) had the highest physical removal efficiency and the lowest reaction rate with isocyanates. All tested skin decontaminants performed similarly, accomplishing decontamination primarily via physical processes and removing 70–80% of isocyanates in one wiping. Limitations of these skin decontaminants are discussed and alternatives presented. In vitro testing using animal skins and in vivo testing with field workers are being conducted to further assess the efficiency and identify related determinants.
Starting Page	716
Ending Page	721
Page Count	6
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	7
Issue Number	7
Journal	Journal of Environmental Monitoring
DOI	10.1039/b503807c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Contact dermatitis Asthma Aliphatic compound Isocyanate Hydrogen Pine-Sol Ethanolamine Chemical reaction Polypropylene glycol Reaction rate
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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An FTIR investigation of isocyanate skin absorption using in vitro guinea pig skin

on behalf of the British Occupational Hygiene Society doi:10.1093/annhyg/mem066 Skin Exposure to Aliphatic Polyisocyanates in the Auto Body Repair and Refinishing Industry: II. A Quantitative Assessment (2008)

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A laboratory investigation of the effectiveness of various skin and surface decontaminants for aliphatic polyisocyanates

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