A case of occupational peritoneal mesothelioma from exposure to tremolite-free chrysotile in Quebec, Canada: A black swan case.

@article{Egilman2011ACO,
  title={A case of occupational peritoneal mesothelioma from exposure to tremolite-free chrysotile in Quebec, Canada: A black swan case.},
  author={David S. Egilman and L. Mam{\'a}n Men{\'e}ndez},
  journal={American journal of industrial medicine},
  year={2011},
  volume={54 2},
  pages={
          153-6
        }
}
BACKGROUND Tremolite contamination has been proposed as the cause of mesothelioma in workers exposed to commercial chrysotile. The asbestos industry and scientists it has sponsored, for example, have argued that commercial chrysotile does not cause peritoneal mesothelioma. METHOD Case report of peritoneal mesothelioma in a mill worker from a tremolite free Canadian mine. RESULTS Reports from pathology and occupational health and safety panels conclude that this mill worker developed work… 

Mesothelioma from chrysotile asbestos: update.

Peritoneal Mesothelioma and Asbestos: Clarifying the Relationship by Epidemiology

It is clear that there is a causal relationship between all types of asbestos at all dose levels for peritoneal mesothelioma and no threshold of exposure to asbestos appears safe.

Malignant Mesothelioma, Airborne Asbestos, and the Need for Accuracy in Chrysotile Risk Assessments

  • C. Meisenkothen
  • Medicine
    New solutions : a journal of environmental and occupational health policy : NS
  • 2013
This report provides additional support for the proposition that chrysotile asbestos can cause malignant mesothelioma in humans by identifying a man who worked 33 years in a wire and cable factory that exclusively used chrysOTile asbestos in its manufacturing process.

Peritoneal mesothelioma associated with bladder cancer and occupational exposure to asbestos: A case report

It is necessary to select patients suitable for surgery for mesothelioma preoperatively on the basis of prior history and once they provide informed consent for surgery.

Assessing specific causation of mesothelioma following exposure to chrysotile asbestos-containing brake dust

  • M. FreemanS. Kohles
  • Medicine
    International journal of occupational and environmental health
  • 2012
There is a “net’ of evidence favoring a causal relationship between brake dust-associated chrysotile exposure and mesothelioma, and the industry-sponsored position that there is insufficient evidence to support a contiguous “chain” of causation is specious.

Malignant Mesothelioma in a Motor Vehicle Mechanic

  • C. Meisenkothen
  • Medicine
    New solutions : a journal of environmental and occupational health policy : NS
  • 2017
This report documents a case of pleural mesothelioma accompanied by asbestos bodies in the lung tissue of a career auto mechanic with no other known sources of exposure.

Hand‐spinning chrysotile exposure and risk of malignant mesothelioma: A case–control study in Southeastern China

It was found that hand‐spinning chrysotile exposure was associated with significantly elevated risk of mesothelioma, reaching OR =10 (95% CIs: 1.4–65) for possible exposure and 64 (12–328) for definite exposure.

Asbestos , Mesothelioma and Lung Cancer : A Comment

The asbestosrelated policies should be revaluated on the basis of independent research because of the screening bias probably contributed to the enhanced registered incidence of asbestosrelated diseases in exposed populations.

Asbestos, Mesothelioma and lung Cancer: An update

The asbestos-related policies should be revaluated on the basis of independent research, and carcinogenicity of chrysotile vs. amphibole asbestos is discussed.

Asbestos-Related Research : First Objectivity then Conclusions

The author’s opinion, the “all fibers equal” basis of official regulations can be accepted provisionally pending objective and reliable evidence on toxicity of different asbestos types and manmade substitutes, and the bans and restrictions on asbestos in some countries should be re-examined and potentially revised.

References

SHOWING 1-10 OF 21 REFERENCES

Chrysotile, tremolite and carcinogenicity.

The hypothesis that, because of the difference in distribution of fibrous tremolite, cancer risks in the central area would be greater than in the periphery was substantiated and is important in framing policies for the use and control of asbestos and is directly relevant to the selection of man-made mineral fibre substitutes.

Mesothelioma in Quebec chrysotile miners and millers: epidemiology and aetiology.

Asbestos in the lungs of persons exposed in the USA.

  • A. LangerR. P. Nolan
  • Medicine
    Monaldi archives for chest disease = Archivio Monaldi per le malattie del torace
  • 1998
It is concluded that crocidolite exposure occurred among USA insulators and a large percentage of other workers as well; insulation workers are primarily exposed to amosite and mixed fibre exposures are associated with more mesotheliomas than single fibre exposures.

Asbestos--still a carcinogen.

Clinical and epidemiologic studies have established incontrovertibly that asbestos causes cancer of the lung, malignant mesothelioma of the pleura a...

Chrysotile: its occurrence and properties as variables controlling biological effects.

Chrysotile formation arises through serpentinization of ultramafics and silicified dolomitic limestones and may form aerosols with different size distributions, especially fibre/fibril diameters and surface areas; it may be associated with varying quantities of tremolite (with differing habits), and may be manipulated both industrially and environmentally to yield surfaces with different properties and, hence, differing biological potentials.

CHARACTERIZATION OF CHRYSOTILE SAMPLES FOR THE PRESENCE OF AMPHIBOLES: THE CAREY CANADIAN DEPOSIT, SOUTHEASTERN QUEBEC, CANADA

Samples were collected from the former chrysotile-producing mine operated by Carey Canadian Mines, located approximately 30 km northeast of Thetford Mines, Quebec, in the Eastern Townships mining

Exposing the "myth" of ABC, "anything but chrysotile": a critique of the Canadian asbestos mining industry and McGill University chrysotile studies.

These studies were used to promote the marketing and sales of asbestos, and have had a substantial effect on policy and occupational health litigation.

Etude de dossier

  • Comité des Maladies Pulmonaires Professionnelles de Sherbrooke. Centre Hospitalier Universitaire de Sherbrooke.
  • 1991

The physical and chemical characteristics of serpentine rocks and miners

  • Ph.D. Dissertation. Department of Mineral Exploitation, University College Cardiff, UK.
  • 1980