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HSIEO


Hazards by Catagory

Hazardous Substances by Category

Have questions about a hazardous chemical or substance? Explore these options for answers:

Chemicals and Hazards A-Z

Toxics and Human Health

Washington Department of Health A-Z Topics

Washington Poison Center  1-800-222-1222

Chemicals listed under Europe’s REACH (Registration, Evaluation, Authorization and Restriction of Chemical Substances, European Commission)


Other Chemical Lists

ToxFAQs

EPA A-Z Index

Hazardous Substance Fact Sheets

ECOTOX database for plants and animals


Safer Choice Products

The U.S. Environmental Protection Agency can help you find safer products.


The Hazardous Substance Information and Education Office is funded in partnership with the Washington State Department of Labor and Industries by the Worker and Community Right-to-Know Fund.