Where It Comes From
Unintentionally produced during magnesium and aluminum smelting, chlorinated solvent and chlor‑alkali manufacturing, and waste incineration; found in sediments and fish, notably in the Great Lakes region [1][2].
How You Are Exposed
Mainly by eating contaminated fish and high‑fat animal foods; also by breathing or skin contact near industrial sources or hazardous waste sites [1][2].
Why It Matters
Persistent and bioaccumulative; high exposures have caused liver and nervous system effects in animals; environmental levels can remain for years [1][2].
Who Is at Risk
People who frequently eat sport fish from contaminated waters, workers in smelting/incineration/chemical plants, and communities near contaminated sites [1][2].
How to Lower Your Exposure
Follow local fish advisories; trim skin and fat and cook to let fat drain; vary seafood choices; avoid burning trash; if you work with potential sources, use protective gear and good hygiene [1][2].
References
- [1]ATSDR. ToxFAQs for Octachlorostyrene (OCS). Agency for Toxic Substances and Disease Registry, U.S. DHHS.
- [2]U.S. EPA & Environment Canada. Great Lakes Binational Toxics Strategy: Octachlorostyrene (OCS) Substance Profile. U.S. Environmental Protection Agency.