Hexachlorbenzene

Hexachlorbenzene is an organochlorine insecticide.

In Sewage Sludge
A study in Australia found several banned organochlorine pesticides (aldrin, chlordane, dieldrin, heptachlor, hexachlorbenzene, and DDT) in sewage sludge. Researchers found that in some cases, it takes as long as 15 years after the pesticides were banned for their levels in sewage sludge to drop below detectable levels.

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