TOXMAP is a geographic information system from the United States National Library of Medicine (NLM) that uses maps of the United States to help users visually explore data from the United States Environmental Protection Agency's (EPA) Toxics Release Inventory and Superfund programs. 
TOXMAP helps users create nationwide, regional, or local area maps showing where TRI chemicals are released on-site into the air, water, ground, and by underground injection, as reported by industrial facilities in the United States. It also identifies the releasing facilities, color-codes release amounts for a single year or year range, and provides multi-year aggregate chemical release data and trends over time, starting with 1988. Maps can also show locations of Superfund sites on the National Priority List (NPL), listing all chemical contaminants present at these sites. Users can search the system by location (such as city, state, or ZIP code), chemical name, chemical name fragment, release medium, release amount, facility name and ID, and can filter results to those residing within a pre-defined or custom geographic region. Search results can be brought up in Google Maps or Google Earth, or saved for use in other tools. TOXMAP also overlays map data such as US Census population information, income figures from the Bureau of Economic Analysis, and health data from the National Cancer Institute and the National Center for Health Statistics.
The data shown in TOXMAP comes from:
- EPA Toxics Release Inventory (TRI)
- EPA Superfund Program (National Priorities List/NPL)
- NIEHS Superfund Research Program
- Hazardous Substances Data Bank
- NLM TOXLINE (Toxicology Bibliographic Information)
- Agency for Toxic Substances and Disease Registry
- National Atlas of the United States
- Surveillance, Epidemiology, and End Results database
- National Center for Health Statistics
- "TOXMAP®:online toxicology maps". United States Data.gov. February 7, 2011. Retrieved October 27, 2011.
- "TOXMAP®". Genetic Engineering & Biotechnology News (GEN) . August, 2005. Retrieved October 27, 2011.
- Hochstein, Colette; Szczur, Marti (2006). "TOXMAP: a GIS-based gateway to environmental health resources". Medical reference services quarterly 25 (3): 13–31. doi:10.1300/J115v25n03_02. PMC 2703818. PMID 16893844.
- "TOXMAP Fact Sheet". United States National Library of Medicine. January 14, 2011. Retrieved May 19, 2011.
- "What data sources does TOXMAP use?". United States National Library of Medicine. July 26, 2010. Retrieved May 5, 2011.
- Hochstein, Colette, Gemoets, Darren: TOXMAP: Environmental Health Maps Now Powered by ArcGIS Server. At: 2011 Esri Federal User Conference.
- Hochstein, Colette, Gemoets, Darren: Recent Enhancements to TOXMAP, an Environmental Health GIS. At: 2008 Esri Federal User Conference.
- Hochstein, C; Arnesen, S; Goshorn, J (2007). "Environmental health and toxicology resources of the United States National Library of Medicine". Medical reference services quarterly 26 (3): 21–45. doi:10.1300/J115v26n03_02. PMC 2716653. PMID 17915629.
- Hochstein, Colette; Arnesen, Stacey; Goshorn, Jeanne (2007). "Environmental health and toxicology resources of the United States National Library of Medicine". Medical reference services quarterly 26 (3): 21–45. doi:10.1300/J115v26n03_02. PMC 2716653. PMID 17915629.
- Hochstein C, Szczur M. TOXMAP: A GIS-based gateway to environmental health resources. In: Thomas C; Standards for Success: GIS for Federal Progress and Accountability. Redlands, CA: ESRI Press; 2006; pages 50–56; ISBN 978-1-58948-087-2.
- Hochstein, Colette (2005). "TOXMAP: A geographic information system (GIS) tool for exploring environmental health data". NLM Technical Bulletin (342): e7.
- Hochstein, C. (June/July 2005). "TOXMAP: A geographic information portal". MLA News (377).
- Dooley, Erin E. (2004). "EHPnet: National Library of Medicine TOXMAP". Environmental Health Perspectives 112 (3): a161. doi:10.1289/ehp.112-a161.
- Szczur, Marti; Krahe, Chris; Hochstein, Colette: TOXMAP: A GIS Information Portal to Environmental Health Databases. At: 2004 Esri International User Conference.