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In 1967, the Joint FAO/WHO Expert Committee on Food Additives recommended
that "any use of mercury compounds that increases the level of mercury
in food should be strongly discouraged".
Swedish Expert Group investigates that concentration of total mercury
of 0.2 mg/g in whole blood and 60 mg/g in hair may prefigure the appearance
of symptoms of mercury poisoning in man. These levels would correspond to
an average daily intake of mercury (as methylmercury) of 0.3 mg for an average
man. Using a Safety Factor of 10, an average daily intake of 0.03mg of
methylmercury may be permissible (Nord. Hyg. Tidskr. Suppl. 4, 1971).
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