Evaluation of the concentration of asbestos fibres released into the ambient air of school buildings Abstract The IRSST undertook this study following a prevention initiative by the government of Quebec to evaluate the extent of asbestos exposure in schools. Its objectives were to obtain a significant number of samples from schools in which sprayed insulation was in the worst condition and establish the extent of insulation deterioration by measuring the concentration of airborne asbestos fibres. In all, 77 samples were obtained from classrooms, gymnasia, cafeterias and other areas in 17 schools. In the vast majority of cases, the concentration of airborne asbestos fibres was below the management threshold. However, the concentration of fibres was higher in some areas, such as gymnasia, in which activities favour contact with the materials. The results are summarized in a table. Produced Under this Project Scientific Reports Evaluation of the concentration of airborne asbestos fibres in schools Research Report: R-256 Scientific Publications Concentration de fibres d’amiante émises dans l’air ambiant de bâtiments scolairesDion C., Perrault G.Source : in L’exposition à l’amiante et son impact au Québec : Symposium de l'Insitut national de santé publique Québec / INSPQ (3 décembre, 2001 : Montréal, Canada), 2001 Additional Information Type: Project Number: 0099-0200 Status: Completed Year of completion: 2000 Research Field: Chemical and Biological Hazard Prevention Team: Chantal Dion (IRSST)Guy Perrault (IRSST)