Norwegian salmon aquaculture happens in the sea, this contaminated fresh water would be very diluted by the time it could get to a fish farm. The salmon are also fed food that was grown elsewhere, so local wild prey having more heavy metals would not lead to accumulation in the farmed salmon. The top predators in the wild that already accumulate all kinds of pollution however … Yeah, they’re going to accumulate even more than before.
Given Norway is famous for its Salmon, I wonder if those heave metals bioaccumulate?
Norwegian salmon aquaculture happens in the sea, this contaminated fresh water would be very diluted by the time it could get to a fish farm. The salmon are also fed food that was grown elsewhere, so local wild prey having more heavy metals would not lead to accumulation in the farmed salmon. The top predators in the wild that already accumulate all kinds of pollution however … Yeah, they’re going to accumulate even more than before.
Typically it’d be things on top of the food chain, but who knows?