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What is TOXMAP?
What is the Toxics Release Inventory (TRI)?
What is the "Superfund" Program?

Does TOXMAP show all sources of toxic chemicals released into or present in the environment?
What data sources does TOXMAP use?
What are some tips for reading maps critically?

TOXMAP® ( is a Geographic Information System (GIS) from the Division of Specialized Information Services ( of the US National Library of Medicine® (NLM) ( that uses maps of the United States to help users visually explore data from the US Environmental Protection Agency (EPA)'s Toxics Release Inventory (TRI) and Superfund Program.

TOXMAP is a resource funded by the US Federal Government; it does not allow advertising on the site or endorse any company or product. It also cannot respond to questions about individual medical cases, provide second opinions, or make specific recommendations regarding therapy. Those issues should be addressed directly with your healthcare provider.

TOXMAP's chemical and environmental health information is taken from NLM's TOXNET® and PubMed®, and from other authoritative sources.

More information about creating TOXMAP maps can be found in the FAQ "How can maps be created in TOXMAP?"

TOXMAP Fact Sheet

TOXMAP Brochure (PDF, 1.24MB)
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