"Health and Environmental Research Online (HERO) database provides an easy way to access the scientific literature behind EPA science assessments." Includes more than 2,000,000 scientific journal articles, reports, books, book chapters, conference material, and other material from the peer-reviewed literature.
Contains over 51,000 occupational safety and health information resource citations. Some citations date back to 1971. Some links to full-text. Includes some NIOSH Mining Safety & Health Research Laboratories publications back to the 1930's.
Index to over 5 million citations covering the biochemical, pharmacological, physiological, and toxicological effects of drugs and other chemicals. Includes PubMed, DART, and NTIS citations. Can search by CAS numbers.