Abstract
Formaldehyde air levels in a group of houses containing urea-formaldehyde foam insulation (UFFI) in St. John's, Newfoundland, Canada, were measured on at least four separate occasions. The NIOSH method and a portable, commercially available single-beam infrared spectrophotometer was used. No correlation was found to exist between the two methods. The formaldehyde air levels were found to be significantly higher in the group of UFFI-insulated houses than in the control group which did not contain UFFI. Large daily variations in the ambient formaldehyde levels could be observed in some selected UFFI houses, attributable to changes in both exterior and, to a lesser extent, interior conditions. In particular, the effect of direct sunlight on UFFI-containing walls is described.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
