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Investigation of the Biodurability and Carcinogenicity of Different Man-Made Mineral Fibres

  • B. Bellmann
  • H. Muhle
  • F. Pott
Conference paper
Part of the NATO ASI Series book series (volume 85)

Abstract

The carcinogenicity of mineral fibres depends on length and diameter, however, the exact relationships are not yet known. Additionally the biopersistence is an important factor: the carcinogenic effect in the intraperitoneal injection test of fibre types with a short half-time in the lung was weak or not detectable in the case of gypsum, wollastonite, glass ATF 3101, HCl-treated E-glass, and HCl-leached chrysotile (Bellmann et al. 1987; Muhle et al. 1991; Pott et al. 1987, 1988, 1989, 1991, 1994). After elimination from the tissue either by translocation or by disintegration a fibre can no longer act as a carcinogen. The minimum period of persistence could be seen as a kind of threshold value. It will be difficult to detect this “threshold” before knowing the mechanism of fibre carcinogenesis. However, a comparison of data on biopersistence of fibre samples in the lung with carcinogenicity data received after i.p. injection may give another approach for recognizing the “threshold” which is important for the regulation of fibres. In the following, some new results on biopersistence are described and compared with carcinogenicity data.

Keywords

Fibre Sample Intratracheal Instillation Carcinogenic Potency Clearance Kinetic Mineral Fibre 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • B. Bellmann
    • 1
  • H. Muhle
    • 1
  • F. Pott
    • 1
    • 2
  1. 1.Fraunhofer Institute of Toxicology and Aerosol ResearchHannoverGermany
  2. 2.Medical Institute for Environmental Hygiene at the Heinrich HeineUniversity of DüsseldorfDüsseldorfGermany

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