Haz-Map http://www.haz-map.com/
Occupational medicine toxicology database to assist in the recognition of diseases caused by hazardous chemicals.
Is Your Job Killing You? by James Q. Jacobs http://www.jqjacobs.net/writing/osha.html
There are as many as 575,000 hazardous chemical products in workplaces. The Occupational Safety and Health Administration (OSHA) estimates that over 32 million workers are exposed to hazardous chemicals. Resources and links for additional information.
Tamarac Medical http://www.tamaracmedical.com/
Located in Denver, Colorado. About this toxicology lab specializing in economical blood lead and cadmium testing for children and industry workers.
TOXNET http://toxnet.nlm.nih.gov/
Provides access to a cluster of databases on toxicology, hazardous chemicals, and related areas.