Title: EVIDENCE FOR AN AMPHIBOLE ASBESTOS THRESHOLD EXPOSURE FOR ASBESTOSIS ASSESSED BY AUTOPSY IN SOUTH AFRICAN ASBESTOS MINERS
Abstract: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 a...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 at autopsy when exposure was up to 2 fibre-years, even after 31–45 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−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.Read More
Publication Year: 1990
Publication Date: 1990-01-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 9
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