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Environ Res. 1978 Dec;17(3):340-6.

Mesothelioma after crocidolite exposure during gas mask manufacture.

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Department of Epidemiology and Health, McGill University, Montreal, Canada.


Of 199 persons employed in the manufacture and handling of Canadian military gas mask canisters containing pure crocidolite, 1939 to 1942, by the end of 1975, 56 had died, 120 were still alive, and 23 could not be traced. Nine (16%) of the deaths were probably due to malignant mesothelioma, six involving the peritoneum. The risk of mesothelioma after crocidolite exposure appears to be many times greater than that after chrysotile.

[Indexed for MEDLINE]

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