Director / Editor: Victor Teboul, Ph.D.

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Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

How do researchers determine how toxic a chemical is? A toxicologist explains alternatives to animal testing

By Brad Reisfeld, Professor of Chemical and Biological Engineering, Biomedical Engineering, and Public Health, Colorado State University

Thousands of chemicals in industry haven’t been thoroughly tested for their safety and toxicity. Researchers are working to standardize quicker, cheaper and more ethical methods to assess chemicals.

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