"Mistakes are portals of discovery." -- James Joyce



"...and sometimes the cause of destruction."

General Disclaimer

This Web project was developed as part of "Internet Resources" courses offered by the Biology and Geology departments of the California State University, Los Angeles in 1995 and 1996. It was submitted to the instructors for evaluation and then placed on-line by the Electronic Desktop Project (EDP). EDP does not update or maintain any of the material of this project, and does not vouch for validity or correctness. Furthermore, the student developing this project was instructed about the rules of copyrights. EDP can in no way be responsible for the inclusion of copyrighted material within this project.

Introduction

This home page compiles toxicological information on several hazardous substances in the environment -- chemicals distributed in the environment both naturally and as a result of human activity. Also included are the affects on human health and the environment and other related topics.

Click the colored dot for toxicology information briefs.

ATSDR/EPA Priority List of Hazardous Substances

The following substances are classified in 1992 as hazardous by the Agency for Toxic Substances and Disease Registry (ATSDR) and the Environmental Protection Agency (EPA). General information on chemical properties and health concerns were prepared by the ATSDR Division of Toxicology. Click for ATSDR HazDat.



  1. DDTs (DDT, DDE, & DDD)
  2. PCB's (Aroclor 1248, 1254, & 1260)
  3. BENZENE
  4. ARSENIC
  5. MERCURY
  6. LEAD
  7. VINYL CHLORIDE
  8. CADMIUM
  9. CHLOROFORM
  10. TOLUENE (Benzo[a]pyrene)
  11. TRICHLOROETHYLENE
  12. BENZO(b)FLUORANTHENE
  13. ALDRIN AND DIELDRIN
  14. CHROMIUM (+6)
  15. DIBENZ[a,h,]ANTHRACENE
  16. CHLORDANE

List of Other Hazardous Substances

Information on other chemicals not listed above can be found by searching the Toxicological Profile List.

Additional Information

Addtional information can be found on EcoNet's Toxics, Hazards and Waste Resources.



Environmental Science Related Topics

Links to environment related topics for additional searches.





Other Search Sources





Bibliography

For a list of some of the books and articles available on hazardous substances browse the Bibliography.

The following has been added by the Electronic Desktop Project:

Contact Us

Please take a few minutes to send us your comments and suggestions. We read every message and try to respond promptly to questions. Your feedback will help us improve our project.

If you are an educator who is using our NEXTSTEP or virtual applications in the classroom, we would especially like to hear from you. Let us know what you are doing and how it is working out. Continued support for this project will depend on its impact in science education.

If you are an educator who is interested in making use of our NEXTSTEP or virtual applications, please let us know how we can help.

Other Places To Go

Return to the Electronic Desktop Project home page

Check out the WWW Virtual Application Catalog from the EDP

Check out the NEXTSTEP Application Catalog from the EDP

Visit the home page for California State University, Los Angeles