Mirex is a persistent organic pollutant (POP). It is made by humans and does not occur naturally in the environment.

Where was mirex manufactured?

It has been measured in top avian pred- ators at both poles; however, concentrations were much higher in the Antarctic species. The one U.S. plant that manufactured mirex was located on the Niagara River upstream from Lake Ontario. It was estimated that almost 6,000 lb of mirex entered Lake Ontario from that facility.

Who made mirex?

Mirex is an insecticide that was produced at the Nease factory for Hooker Chemical Company until 1969. The technical name for mirex is 1,1AA2,3,3A,4,5,5,5A, SB, 6-Dodecachloroctahydro-l,3,4- metheno-lH-cyclobuta (CP) pentalene.