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

  • Written by Brad Reisfeld, Professor of Chemical and Biological Engineering, Biomedical Engineering, and Public Health, Colorado State University

A vast number of chemicals are registered for production and use around the world. But only a portion have been thoroughly evaluated for their toxicity due to time, cost, ethical concerns and regulatory limitations.

To safeguard public health, researchers at organizations such as the U.S. Environmental Protection Agency, U.S. Food and Drug...

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