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镉的生产与使用导致镉的环境污染日益加重[1-2],由于近年来镉的消费模式发生改变,以前仅用于生产,现在生活中的广泛大量使用,如含镉电池的使用,同时由于回收困难,增加了污染机会,其污染已经成为危害生态环境和人类健康的严重公害之一。镉在土壤、水源、食物中广泛蓄积,对于非职业接触人群,饮食是其摄入的主要途径[3];吸烟也是生活中接触镉的一个重要途径,烟草中含有一定程度的镉,研究[4]表明,吸烟者镉的摄入量是非吸烟者的2倍。镉不仅造
The production and use of cadmium has led to the increasing environmental pollution of cadmium [1-2]. Due to changes in the consumption pattern of cadmium in recent years, it was only used for production in the past and has been widely used in large quantities nowadays, such as the use of cadmium batteries, Due to the difficulty of recovery, pollution opportunities have increased, and its pollution has become one of the serious public hazards endangering the ecological environment and human health. Cadmium is widely accumulated in soil, water and food. For non-occupational exposure to humans, diet is the main way of its intake [3]. Smoking is also an important way of exposure to cadmium in life. Tobacco contains a certain amount of cadmium [ 4] showed that smokers had twice as many cadmium intake as non-smokers. Cadmium is not only made