Agency for Toxic Substances and Disease Registry

PFAS and Your Health

Per- and Polyfluoroalkyl Exposure Assessments (PFAS)

CDC/ATSDR will conduct exposure assessments in communities near current or former military installations known to have past or current presence of PFAS in drinking water.



Learn important information about N-Nitrosodi-n-Propylamine.


ATSDR Stories from the Field

Learn about developing an app-based tool for disaster response.

ALS Biorepository

National ALS Biorepository

Learn how the National ALS Biorepository samples are being used.

PFAS toxprofile

New Perfluoroalkyls ToxProfile

Scientific resource about perfluoroalkyls is now available.

The Agency for Toxic Substances and Disease Registry (ATSDR), based in Atlanta, Georgia, is a federal public health agency of the U.S. Department of Health and Human Services. ATSDR protects communities from harmful health effects related to exposure to natural and man-made hazardous substances. We do this by responding to environmental health emergencies; investigating emerging environmental health threats; conducting research on the health impacts of hazardous waste sites; and building capabilities of and providing actionable guidance to state and local health partners.

Go Green for the Holidays
Go Green for the Holidays
Make sustainable holiday choices when you are shopping, traveling, sending cards, decorating, and choosing gifts. When you save energy and resources, you protect the environment and safeguard health both now and for the future.

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Page last reviewed: February 21, 2019