Cadmium Concentration in Current Japanese Foods and Beverages

概要

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The present study was to determine the cadmium (Cd) concentrations in ordinarily consumed foods and beverages in Japan. Methods-Cd concentrations in 519 foods and beverages purchased from a local market were measured with the flame or flameless atomic absorption spectrophotometer (AAS). Results-The Cd concentration in each food group was as follows: cereals 0.004-0.380μg/g, potatoes <0.01-0.08μg/g, sugars and sweeteners <0.01μg/g, pulses <0.010-0.220μg/g, nuts and seeds <0.01-0.18μg/g, vegetables (grown in soil) <0.001-0.128μg/g, vegetable (grown by means of hydroponics) <0.001-0.002μg/g, fruits <0.001-0.033μg/g, mushrooms <0.01-0.19μg/g, algae 0.040-2.380μg/g, fish <0.01-0.02μg/g, shellfish <0.01 0-5.050μg/g, meats <0.001-0.100μg/g, eggs <0.001μg/g, milk <0.010μg/g, fats and oils <0.001-0.001μg/g, confectioneries <0.020-0.100μg/g, beverages <0.01-0.13μg/g, seasoning and spices <0.01-0.06μg/g, and various supplement tablets <0.001-0.036μg/g. Conclusion-A database of Cd content in foods was compiled. Cd in cereals varied from 0.004 to 0.380ug/g. Algae, shellfish and pulses contained much higher concentrations of Cd. Vegetables grown by hydroponic cultivation contained only a very low or undetectable amount of Cd. Estimation of dietary Cd intake from the database could provide a reasonable method for estimating the relative contributions of different food groups to dietary Cd intake.
社団法人日本産業衛生学会の論文