A survey of airborne isocyanate exposure in 13 Swedish polyurethane industries

The Annals of Occupational Hygiene
Carl J SennbroHåkan Tinnerberg

Abstract

Exposure to isocyanates can be harmful to workers by causing different disorders of the airways. The main objectives of this study were to survey the personal 8 h time-weighted average exposure to isocyanates at 13 Swedish plants that handled either polyurethane, diisocyanates or both, including four types of manufacturing processes: moulding, continuous foaming, flame lamination and low or no heating processes. A total of 223 air samples were collected for 111 workers with personal air monitoring using a dry filter method with 1-(2-methoxyphenyl)piperazine (2MP) as derivatization reagent. A further 272 stationary samples were collected, using the 2MP method, a modified 2MP method and an impinger method using dibutylamine in toluene. With the applied strategy, a large number of workers were monitored and four industrial environments were compared regarding the isocyanate exposure. All workers were found to be exposed to isocyanates in the range 0.004-5.2 p.p.b. On average, the personal exposure levels in the different types of manufacturing processes were, in decreasing order: continuous foaming > flame lamination > moulding > low or no heating processes. However, there were variations in exposure levels in plants with similar ...Continue Reading

Citations

Jul 5, 2005·International Archives of Occupational and Environmental Health·Carl Johan SennbroBo A G Jönsson
Mar 18, 2008·The Annals of Occupational Hygiene·Håkan Tinnerberg, Christian Mattsson
Dec 28, 2011·The Annals of Occupational Hygiene·John WhiteMatthew Coldwell
May 2, 2008·Environmental Health : a Global Access Science Source·Karin BrobergMargareta Littorin
Jun 15, 2015·Toxicology and Applied Pharmacology·Julia M BroströmJohan Högberg
Sep 18, 2007·International Journal of Hygiene and Environmental Health·Christian MattssonHåkan Tinnerberg
Jul 31, 2008·Journal of Occupational and Environmental Hygiene·H TinnerbergB A G Jönsson
Apr 8, 2015·International Journal of Environmental Research and Public Health·Bjarke MølgaardAntti Joonas Koivisto

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