Waste 2 Resources > PBT Initiative > The PBT List

The PBT List

The PBT List includes the ‘worst of the worst’. Substances were put on this list according to a selection process included in the PBT Rule. At this time, there are 27 substances on this list:

Metals	Flame Retardants	Banned Pesticides	Organic Chemicals
Methyl-mercury	PBDEs Tetrabromobisphenol A Hexabromocyclododecane Pentachlorobenzene	Aldrin/Dieldrin Chlordane DDT/DDD/DDE Heptachlor Epoxide Toxaphene Chlordecone Endrin Mirex	1,2,4,5-TCB Perfluoro-octane sulfonates Hexachlorobenzene Hexachlorobutadiene Short-chain chlor parraffin Polychlrned Naphthalenes
Combustion By-Products	Banned Flame Retardants	Banned Organic Chemicals	Metals of Concern
PAHs PCDD PCDF PBDD/PBDF	Hexabromobiphenyl	PCBs	Cadmium Lead

 
The PBT Rule also establishes procedures Ecology uses to review and periodically update the PBT list.