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the claim

Farm-raised salmon contains higher levels of PCBs than wild salmon.

the verdict
CONTESTED PARTIAL
Recorded sources
1 source for · 2 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Farm-raised salmon contains higher levels of PCBs than wild salmon?

Partly. One 2004 Science study reported higher organochlorine contaminants in farmed salmon, while a Norwegian study found dioxins and PCBs highest in wild salmon and lowest in farmed salmon, and a clinic source notes farmed salmon historically tested higher but feed changes have lowered levels. The evidence is mixed and does not settle the claim at the strength asserted.

Verdict: CONTESTED PARTIAL · 1 source for, 2 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 1
Aquaculture of salmonids
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Aquaculture of salmonids. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Aquaculture_of_salmonids

Evidence against · 2
An Update on the Content of Fatty Acids, Dioxins, PCBs and Heavy Metals in Farmed, Escaped and Wild Atlantic Salmon (Salmo salar L.) in Norway -
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An Update on the Content of Fatty Acids, Dioxins, PCBs and Heavy Metals in Farmed, Escaped and Wild Atlantic Salmon (Salmo salar L.) in Norway - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.3390/foods9121901

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More against · 1
Facebook
Get citation
Facebook. (n.d.). health.clevelandclinic.org. https://health.clevelandclinic.org/fish-faceoff-wild-salmon-vs-farmed-salmon

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