The science of that is far from settled. There's evidence that mercury in fish accumulates from natural sources [1] https://www.sciencedaily.com/releases/2003

The science of that is far from settled. There's evidence that mercury in fish accumulates from natural sources [1] https://www.sciencedaily.com/releases/2003/12/031205053316.htm https://www.sciencedaily.com/releases/2003/12/031205053316.h...