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Does this cause cancer? How scientists determine whether a chemical is carcinogenic – sometimes with controversial results

  • Written by Brad Reisfeld, Professor of Chemical and Biological Engineering, Colorado State University
Does this cause cancer? How scientists determine whether a chemical is carcinogenic – sometimes with controversial resultsCarcinogenic chemicals are labeled with a health hazard warning symbol. Peter Etchells/iStock via Getty Images Plus

People are exposed to numerous chemicals throughout their lifetimes. These chemicals can be from the air, foods, personal care items, household products and medications. Unfortunately, exposure to certain chemicals can cause harmful...

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