Formaldehyde monitoring in urea-formaldehyde foam-insulated houses in St. John's,Newfoundland, Canada: Correlative field evaluation of a real-time infrared spectrophotometric method |
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| Authors: | Paris E. Georghiou David Snow David T. Williams |
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| Affiliation: | Department of Chemistry, Memorial University of Newfoundland, St. John''s, Newfoundland, Canada, A1B 3X7 and Geortec Ltd., 5 Atlantic Avenue, St. John''s, Newfoundland, Canada, A1E 1K9;Geortec Ltd., 5 Atlantic Avenue, St. John''s, Newfoundland, Canada, 1E 1K9;Health and Welfare canada, Environmental Health Directorate, Monitoring and Criteria Division, Tunney''s Pasture, Ottawa, Ontario, Canada, K1A 0L2 |
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| 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. |
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