Environmental Engineering Reference
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We arrive at the same conclusion for POPs. Thirty years ago, countries began to intro-
duce reductions in technical HCH (the mixture of HCH forms that made up the pesticide
lindane). However, today, beta-HCH is still increasing in Canadian Arctic marine waters.
This is an ominous indication of what the future may hold for PFOS in the Arctic. The
environment has a finite capacity for benignly acting as a reservoir into which humankind
can dump toxic, biomagnifying and persistent chemicals, including mercury. The limits of
this capacity before biological and health effects occur has been reached in some areas, and
for mercury, the physical mass balance models of the environmental inventory predict that
recovery will be slow, however effective the Minamata Convention may be.
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