  Haz-Map shows the diseases linked to each agent and the agents
linked to each disease. Agents are chemical such as
formaldehyde, or biological such as grain dust. Haz-Map links
jobs and hazardous job tasks with occupational diseases and
their symptoms.  In Haz-Map, chronic occupational diseases are
linked to both jobs and industries, while acute diseases and
infectious diseases are linked only to jobs. Cancers are not
linked to jobs, industries or findings.  The information in Haz-
Map comes from textbooks, journal articles, the Documentation of
the Threshold Limit Values (published by ACGIH), and electronic
databases such as NLM's Hazardous Substances Data Bank (HSDB®).
Haz-Map staff classifies, summarizes, and regularly updates the
information found in the database.