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I have been working with a client on possible PCB burdens in fish tissues.
While researching his problem I came across a paper on PCB levels in
sockeye salmon returning to the Copper River, Alaska (Ewald et al. 1998,
in: Arctic). The levels they found were more than a little surprising.
They found a mean loading in whole fish tissue muscle lipids of almost 8
parts per million. This translates to about 70 parts per billion of whole
fish. At that rate they are almost hazardous waste sites swimming up the
river.
Does anyone else have any data to support this, or conversely, is it really
anomolous?
I will be collecting data from the Kenai Peninsula (AK) for the client, and
will have data by the end of the summer for comparative purposes, but would
like to know whether this is a bigger problem
Howard Teas
Anchorage, AK
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