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Environmental Health

Harmful substances in the environment—such as radon, lead, and pesticides—can make you sick. Our environmental health topics can help you learn more about these hazards so you can ensure that the places you live, work, and play are safe for you and your family.

Find the information you need in topics such as:

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Current as of: January 8, 2026

Author: WebMD Ignite Staff

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This information does not replace the advice of a doctor. WebMD Ignite, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

NOTICE: This health information was not created by Columbia University Irving Medical Center and may not necessarily reflect specific CUIMC practices. For medical advice to your personal condition, please consult your doctor. Medical advice disclaimer.