Skip directly to: content | left navigation | search

Toxic Substances

  • NEW! Toxic Substances Portal
    With one click, access the best science, the latest research, and the most important information about toxic substances.
  • Related Resources
  • Hazardous Substances Emergency Events Surveillance (HSEES)
    A state-based surveillance system to describe the public health consequences associated with accidental releases of hazardous substances.
  • Interaction Profiles
    The ATSDR Interaction Profile succintly characterizes the toxicologic and adverse health effects information for mixtures of hazardous substances.
  • Minimal Risk Levels (MRLs)
    An estimate of the daily human exposure to a hazardous substance that is likely to be without appreciable risk of adverse noncancer health effects.
  • Priority Data Needs (PDNs)
    Research needs for ATSDR's priority hazardous substances which are considered by the Agency to be the most important to fill (e.g., by conducting studies such as toxicological testing).
  • Priority Hazardous Substances (CERCLA)
    A list, in order of priority, of substances that are most commonly found at facilities on the National Priorities List (NPL) and which are determined to pose the most significant potential threat to human health due to their known or suspected toxicity and potential for human exposure at these NPL sites.
  • Scientific assessments and consultations
    A collection of scientific health assessments and chemical-specific consultations developed by ATSDR in response to emerging issues on public health and/or community requests related to specific exposure scenarios to hazardous chemicals.
  • Third National Report on Human Exposure to Environmental ChemicalsExit ATSDR Web site
    Third in a series of publications that provide an ongoing assessment of the exposure of the U.S. population to environmental chemicals using biomonitoring.
  • ToxFAQs™
    Frequently Asked Questions about contaminants found at hazardous waste sites.
  • Toxicological Profiles
    Toxicological information collected by ATSDR into a single document, available in hard-copy or on CD-ROM.