Centro de Documentacion de Fundación MAPFRE - Evidence for an amphibole asbestos threshold exposure for asbestosis assessed by autopsy in South African asbestos miners

MAP20071017831

Evidence for an amphibole asbestos threshold exposure for asbestosis assessed by autopsy in South African asbestos miners / G.K. Sluis-Cremer, E. Hnizdo and R.S.J. Du Toit

Sumario: In an attempt to determine whether there exists a threshold asbestos dose below which asbestosis does not occur, data on 807 men who had worked on amphibole asbestos mines and undergone autopsy were analysed. When exposure was expressed as fibre-years no asbestosis was found a autopsy when exposure was up to 2 fibre-years, even after 35-45 years of residence time. In the group exposed to >2-5 fibre-years asbestosis was found. When exposure was expressed as average fibre concentration asbestosis occurred below 2 fibres per ml (f ml exp.(-1)) and the prevalence increased with residence time. In conclusion, if a threshold dose for asbestosis does exist it is at approximately 2 fibre-years if off-shift exposure is ignored

En: The Annals of occupational hygiene. - Oxford [etc.]. - nº 5, October 1990 ; p. 443-451

1. Medicina laboral . 2. Enfermedades profesionales . 3. Amianto . 4. Asbestosis . 5. Enfermedades pulmonares . 6. Epidemiología . 7. Estadísticas . 8. Minería . 9. Casos prácticos . 10. Sudáfrica . I. Hnizdo, Eva . II. Du Toit, R.S.J. . III. Título. IV. Título: The Annals of occupational hygiene.