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Article: PCBs: measuring the danger. (Technical Briefs).
- Article from:
- Journal of Environmental Health
- Article date:
- June 1, 2002
- Author:
CopyrightCOPYRIGHT 2002 National Environmental Health Association. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Health Effects--The Known and the Unknown
Polychlorinated biphenyls (PCBs) are known to cause numerous adverse health effects in animals. Some of the human studies, however, have been inconclusive. They have failed to show a link between PCB exposure and diseases, largely because epidemiologic studies have limitations that affect their ability to find health effects. Those limitations include the small numbers of persons often involved in studies (making it hard to discern a pattern), difficulty in determining actual exposure levels, and multiple confounding factors (e.g., smoking, drinking, and exposure to other contaminants). The inconclusiveness of such ...