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Carcinogen risk assessment. Can we harmonise?

P N Di Marco1, B G Priestly, K J Buckett

  • 1Health Department of Western Australia, Perth, Australia. Peter.DiMarco@health.wa.gov.au

Toxicology Letters
|February 18, 1999
PubMed
Summary

Harmonizing chemical risk assessment (RA) is crucial for global chemical safety. Efforts are underway to improve consistency and transparency in carcinogen RA, addressing differences in national policies and scientific approaches.

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Area of Science:

  • Environmental Science
  • Toxicology
  • Chemical Risk Assessment

Background:

  • Harmonization of chemical risk assessment (RA) is a key goal for effective chemical management.
  • Benefits include consistent, transparent, and scientifically credible RA outcomes.
  • Carcinogen RA involves hazard classification, exposure conditions, and risk estimation for human populations.

Purpose of the Study:

  • To discuss the importance and progress of harmonizing carcinogen risk assessment.
  • To highlight challenges arising from differing national policy frameworks and scientific considerations.
  • To introduce alternative approaches for quantitative carcinogen RA that facilitate harmonization.

Main Methods:

  • Review of existing national policies and international harmonization programs (e.g., International Programme for Chemical Safety).

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  • Analysis of differences in science policy for carcinogen RA, including mechanistic considerations (genotoxic vs. non-genotoxic) and human relevance.
  • Exploration of alternative quantitative RA approaches amenable to harmonization.

    • Main Results:

    • Significant progress is being made towards harmonizing carcinogen RA.
    • Reassessment of national policies and participation in international initiatives are key drivers.
    • New approaches are being developed to enhance the harmonizability of quantitative carcinogen RA.

    Conclusions:

    • Harmonization of carcinogen RA is essential for sound global chemical management.
    • Addressing national policy differences and advancing quantitative methods are critical for achieving consistency.
    • International collaboration and the development of harmonizable approaches are paving the way for improved chemical safety.