In English | En español
Questions About Cancer? 1-800-4-CANCER

Understanding Cancer Series

< Back to Main
  • Posted: 04/07/2006
  • Reviewed: 11/04/2010

Page Options

  • Print This Page
  • Print This Document
  • View Entire Document
  • Email This Document
  • View/Print PDF
  • View/Print PowerPoint

Slide 39


Identifying Cancer-Causing Substances

< Previous SectionNext Section >

Americans commonly use more than 100,000 chemicals, and this doesn't take into account mixtures or combinations of chemicals. Plus, some chemicals are altered by the atmosphere, water, or incineration.

Scientists have been working for several decades to identify substances that cause cancer. They have three ways to do this: through human studies, animal studies, and laboratory experiments.

Identifying Cancer-Causing Substances