The Annals of Occupational Hygiene · 1999 · 31 citations · 2 references
Public HealthEnvironmental SciencesToxicologyAir PollutionEnvironmental HealthEnvironmental ToxicologyAir QualityChemical ExposureChemical SafetyExposure AssessmentExposure MonitoringHousehold Chemical ExposuresHousehold Chemical Exposure AssessmentIndoor Air Exposure AssessmentIndoor Air Quality MeasurementInhalation Exposure AssessmentPersonal Exposure MonitoringPollutant Exposure AssessmentPolyurethane Foam InsulationResidential Exposure Measurement
Buildings are often insulated with sprayed-in-place polyurethane foam in spite of the fact that few studies have been carried out on exposure levels to isocyanates during the spraying process. This paper is meant to provide new data on personal exposure to methylene-bis (4-phenylisocyanate) (MDI) while dwellings and office buildings are being insulated with polyurethane foam. An impinger using a 1-(2-methoxyphenyl)piperazine toluene solution as absorbent was used to take personal samples for the sprayer and helper during indoor and outdoor applications. The analytical results show that the levels of exposure were significant, especially for the sprayer, with values of up to 0.077 mg m-3 and 0.400 mg m-3 during outdoor and indoor applications, respectively. The helper's exposure was always lower.
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