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Fact Sheet

three hazardous waste workers with barrel factory with many pipes farmer on tractor in field

Haz-Map is an occupational health database designed for health and safety professionals and for consumers seeking information about the health effects of exposure to chemicals and biological agents. The database is a "map" of workplace hazards to help you prevent occupational diseases. Haz-Map links jobs, hazardous tasks with occupational diseases and their symptoms, and other non-occupational diseases such as hobbies.  It is one of the products and services made available by the National Library of Medicine's (NLM) Toxicology and Environmental Health Information Program.

The main links in Haz-Map are between chemicals and occupational diseases, in which causality has been established based on current scientific evidence. Haz-Map shows diseases linked to each agent and agents linked to each disease. Agents are chemical, for example, formaldehyde, or biological, for example, grain dust. Information from textbooks, journal articles, Documentation of the Threshold Limit Values (published by ACGIH), and online databases such as NLM's Hazardous Substances Data Bank (HSDB®) is classified, summarized, and regularly updated to create the database. HSDB is part of the TOXNET® system of databases related to toxicology and environmental health.

Some of Haz-Map's features include: text search capability, browsing by categories of jobs, diseases, or agents, searching hazardous agents by adverse effects, searching diseases by jobs and findings, and automated PubMed searches of occupational diseases.  Definitions of technical terms are available in the glossary.  The author's web site shows the up-to-date bibliography.

Further Information

For detailed information about Haz-Map, contact:

Specialized Information Services
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Telephone: (301) 496-1131
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For general information on NLM services, contact:

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Bethesda, MD 20894
Telephone: 1-888-FINDNLM (1-888-346-3656)
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A complete list of NLM Fact Sheets is available at:
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Or write to:

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Phone: (301) 496-6308
Fax: (301) 496-4450