burdens for asbestosis and airway fibrosis with lower burdens for pleural plaques and lung cancer. Differences between fibre types and doses responses. Churg (1994) Mossman et al Deposition and Lung tissue analysis of Chrysotile Not reported Not reported Review. Author’s (2011) RMA Clearance of 94 chrysotile asbestos asbestos conclusion: The retained ID: 067547 Chrysotile miners and millers from mill/mine chrysotile and exposure Asbestos Thetford atmosphere contained –Quebec Canada percentage of tremolite, yet the lungs contained more tremolite than chrysotile, and the tremolite content increased rapidly with the duration of exposure. Most inhaled chrysotile was rapidity cleared by the lungs a small fraction was retained indefinitely. After exposure ended there was little or no clearance of either fibres from the lung. Becklake RMA ID: Asbestos and Not reported Not reported Not reported Not reported Review. Author (1991) 000429 other conclusion: men disease exposure to low level of of the lungs and fibre/mL over a short Pleura. duration (5 -20 years) had Distribution & small irregular opacities determinants in and pleural changes
burdens for asbestosis and airway fibrosis with lower burdens for pleural plaques and lung cancer. Differences between fibre types and doses responses. Churg (1994) Mossman et al (2011) RMA ID: 067547 Deposition and Clearance of Chrysotile Asbestos Lung tissue analysis of 94 chrysotile asbestos miners and millers from Thetford –Quebec Canada Chrysotile asbestos mill/mine Not reported Not reported Review. Author’s conclusion: The retained chrysotile and exposure atmosphere contained percentage of tremolite, yet the lungs contained more tremolite than chrysotile, and the tremolite content increased rapidly with the duration of exposure. Most inhaled chrysotile was rapidity cleared by the lungs a small fraction was retained indefinitely. After exposure ended there was little or no clearance of either fibres from the lung. Becklake (1991) RMA ID: 000429 Asbestos and other disease of the lungs and Pleura. Distribution & determinants in Not reported Not reported Not reported Not reported Review. Author conclusion: men exposure to low level of fibre/mL over a short duration (5 -20 years) had small irregular opacities and pleural changes