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April 3, 1937


JAMA. 1937;108(14):1178. doi:10.1001/jama.1937.02780140034011

In order to minimize the possibility of poisoning from foods contaminated by lead or other metallic spray residues, the federal government has established maximum values for the amounts of these metals that may be present in sprayed fruits intended for interstate commerce. The Council on Foods of the American Medical Association has voted that no food shall use the seal of acceptance if it contains more than two parts of lead per million of food. Tolerances for arsenic and copper also have been adopted. Laws to protect consumers of fruits and vegetables distributed in intrastate commerce exist in only two states, Colorado and Michigan. A recent report1 emphasizes the urgent need for state laws of this type. Analyses were made on various lots of apples of different varieties intended for local distribution in Iowa, a state without spray residue regulations. Lead was determined by the diphenylthiocarbazone procedure as an

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