title: Personal and static sample measurements of asbestos fibres during two abatement projects.
abstract: Exposure assessment was performed during the abatement of amosite containing material (ACM) and chrysotile containing material (CCM). Mean fibre concentrations (MFC) in breathing zone (BZ) were 20.6+/-7.9 f/cc and 6.3+/-2.2 f/cc during abatements of ACM and CCM, respectively. At the fixed station, MFC were 5.4+/-3.5 f/cc for ACM and 2.9 f/cc+/-1.6 for CCM. For observer's BZ, MFC were 3.1+/-1.3 f/cc (ACM) and 1.8 f/cc (CCM) during the abatement. Though elevated, area and observer-type samples clearly underestimate exposure. Exposure remained unacceptable in the worksite with the class of respiratory protection used.
authors.affiliation: Department of Environmental and Occupational Health, School of Public Health, Université de Montréal, Pavillon Marguerite d'Youville, 2375, Chemin de la Côte Ste-Catherine, Montreal, QC H3T 1A8, Canada. andre.dufresne@umontreal.ca
authors.forename: A
authors.initials: A
authors.lastname: Dufresne
authors.forename: C
authors.initials: C
authors.lastname: Dion
authors.forename: A
authors.initials: A
authors.lastname: Frielaender
authors.forename: E
authors.initials: E
authors.lastname: Audet
authors.forename: G
authors.initials: G
authors.lastname: Perrault
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D001194:Asbestos / Q000032:analysis*; D001195:Asbestosis; D003252:Construction Materials; D004781:Environmental Exposure; D004784:Environmental Monitoring / Q000379:methods*; D052918:Environmental Restoration and Remediation / Q000032:analysis*; D006798:Housing; D006801:Humans; D019570:Inhalation Exposure; D019016:Mineral Fibers / Q000032:analysis*
chemical_list: D000395:Air Pollutants, Occupational; D019016:Mineral Fibers; D001194:Asbestos