Mercury in Some Canadian Atlantic Coast Fish and Shellfish

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Abstract
All species of North Atlantic fishes studied, with the exception of two groups of offshore lobsters, had total mercury levels less than the 0.5 ppm limit allowed for fish of commerce in Canada and the United States. There appeared to be no relationship between mercury levels and the sex and/or weight of fish of any one species.The first indication that mecury was a threat to public health came from the Japanese mercury poisoning epidemics in the early 1950s (Löfroth 1969; Berglund et al. 1971). This initiated many studies. Apparently increased industrial and agricultural use and the broad dissemination of mercury compounds had caused mercury contamination in fish (Nuorteva 1971).

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