Note: EPA no longer updates this information, but it may be useful as a reference or resource.
What is Octachlorostyrene?
Octachlorostyrene is a persistent, bioacculumative, and toxic (PBT) pollutants target by EPA.
Where can Octachlorostyrene be found?
Formed when graphite anodes are used during electrolytic production of magnesium from magnesium chloride.
By-product of wastes from the electrolytic production of chlorine prior to 1970 when graphite anodes and coal tar pitch binder were used.