摘要：Aims—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 0.004-0.380 μg/g, potatoes<0.01-0.08 μg/g, sugars and sweeteners<0.01 μg/g, pulses<0.010-0.220 μg/g, nuts and seeds<0.01-0.18 μg/g, vegetables (grown in soil) <0.001-0.128 μg/g, vegetable (grown by means of hydroponics) <0.001-0.002 μg/g, fruits<0.001-0.033 μg/g, mushrooms<0.01-0.19 μg/g, algae 0.040-2.380 μg/g, fish<0.01-0.02 μg/g, shellfish<0.010-5.050 μg/g, meats<0.001-0.100 μg/g, eggs<0.001 μg/g, milk<0.010 μg/g, fats and oils<0.001-0.001 μg/g, confectioneries<0.020-0.100 μg/g, beverages<0.01-0.13 μg/g, seasoning and spices<0.01-0.06 μg/g, and various supplement tablets<0.001-0.036 μg/g. Conclusion—A database of Cd content in foods was compiled. Cd in cereals varied from 0.004 to 0.380 ug/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.
