对北京24种常用食品Pb、Cd含量进行调查。结果肉、蛋、鱼类食品Pb、Cd含量以带鱼最高,白鲢鱼Pb含量最低,鸡蛋Cd含量最低。蔬菜、水果类食品,果实类蔬菜Pb、Cd平均含量低于叶类蔬菜,水果类Cd水平明显低于蔬菜类。粮食类玉米面Pb含量最高,而Cd含量最低。调查的三类24种食品Pb、Cd含量参考国内外标准均处于较低水平。 The contents of Pb and Cd in 24 commonly used foods in Beijing were investigated. Results The contents of Pb and Cd in meat, eggs and fish food were highest in octopus, lowest in silver carp and lowest in egg. The average contents of Pb and Cd in vegetables, fruits and fruit vegetables were lower than those in leafy vegetables, and the levels of Cd in fruits were significantly lower than those in vegetables. Grain corn has the highest Pb content and the lowest Cd content. The investigation of the three types of 24 kinds of food Pb, Cd content in reference to domestic and foreign standards are at a low level.