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Abstract
Lead uptake by 7 food crops was studied in a growth chamber experiment involving 3 rates of PbCl2 applied to soil. Lead concentrations in some plant parts were influenced more dramatically by soil lead treatments than levels in other plant sections. Lettuce and spinach leaves and the tuberous portions of radish and carrot plants accumulated markedly higher lead concentrations than did the edible portions of 3 other plant varieties. Since excessive dietary intake of lead is undesirable, growth of lead-responsive crops on contaminated soils should be avoided.