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The toxicity of heavy metals to aquatic animals is generally mercury, followed by silver, copper, cadmium, lead, and zinc, followed by tin, aluminum, nickel, iron, barium, and manganese
Mercury can accumulate in fish, and the concentration can reach more than a thousand times
Heavy metal ions such as lead, zinc, silver, nickel, cadmium, etc.
Related links: Harm of arsenic, chromium and copper to crops