Contaminants
This page contains links to Superfund contaminant-specific Web sites and information on common contaminants found at Superfund sites.
Superfund Contaminant Information
Asbestos - This page contains information regarding addressing asbestos contamination at Superfund sites, which includes policy and guidance, technical assistance, health effects, and naturally occurring asebestos.
Dioxin - Provides information on characterization of dioxin contaminated soil.
Lead - Lead contamination at Superfund sites presents a threat to human health and the environment. This Web site describes EPA's approach to addressing those risks, and the challenges of remediating lead contamination at Superfund sites, and includes information on human health effects, lead risk assessment, software, user manuals, guidance, frequent questions, and technical assistance.
Mercury - EPA-wide Web site which provides a broad range of mercury information: actions by by all programs in EPA and others, including international actions; effects on people and the environment; and how to protect you and your family.
Radiation - This page contains information regarding addressing radiation contamination at Superfund sites, which includes frequently used guidance documents and reports.
Soil Bioavailability - This Web area describes how EPA is incorporating relative bioavailability information for human exposures at Superfund sites exposed to soil contaminants via oral pathway.
Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Priority List of Hazardous Substances - CERCLA requires ATSDR and the EPA to prepare 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. CERCLA also requires this list to be revised periodically to reflect additional information on hazardous substances.
Top 20 hazardous substances on the CERCLA Priority List of Hazardous Substances - A list of the top 20 hazardous substances on the CERCLA Priority List of Hazardous Substances.
Other Contaminant Information
Clu-in.org Contaminant Focus 
- The CLU-IN Contaminant Focus area bundles information associated with the cleanup of individual contaminants and contaminant groups. This information is presented in categories such as Policy and Guidance, Chemistry and Behavior, Environmental Occurrence, Toxicology, Detection and Site Characterization, Treatment Technologies, and Conferences and Seminars.
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