目的了解绍兴地区不同人群膳食中铅、镉和总汞的摄入量,评估绍兴地区膳食中铅、镉和总汞的安全性。方法对绍兴地区食品中铅、镉和总汞含量进行监测,结合2008年绍兴市居民膳食消费量调查结果,对绍兴地区不同人群膳食中铅、镉和总汞的暴露水平进行评估。结果不同年龄和性别人群膳食中铅的每周平均暴露量为5.26~13.1μg/kg BW,占原PTWI的21.0%~52.4%,全人群膳食中铅的平均暴露限值(MOE)为1.02;镉的每月平均暴露量为16.0~39.4μg/kg BW,占PTMI的64.0%~157.6%,2~6岁和7~17岁年龄组男性、2~6岁年龄组女性膳食中镉暴露水平均超过了PTMI限值(25μg/kg BW);总汞的每周平均暴露量为0.67~2.02μg/kg BW,占PTWI的16.8%~50.5%。膳食中铅、镉和总汞的主要来源均为米及其制品和鱼虾类食品。结论绍兴地区居民膳食中总汞暴露水平是安全的,但膳食中铅和镉暴露水平较高,尤其是18岁以下人群,需加强相关食品中铅和镉的监测及膳食指导。 Objective To understand the dietary intakes of lead, cadmium and total mercury in different populations in Shaoxing and evaluate the safety of dietary lead, cadmium and total mercury in Shaoxing. Methods The contents of lead, cadmium and total mercury in food in Shaoxing were monitored. Based on the survey results of dietary consumption of residents in Shaoxing in 2008, the levels of dietary lead, cadmium and total mercury in different populations in Shaoxing were assessed. Results The average weekly exposure of lead to dietary exposure was 5.26-13.1μg / kg BW, accounting for 21.0% -52.4% of the original PTWI. The average lead exposure limit (MOE) of whole population was 1.02. The average monthly exposure to cadmium was 16.0-39.4 μg / kg BW, accounting for 64.0% -157.6% of the PTMI. The levels of cadmium in the diet of men aged 2-6 and 7-17 and those in the 2-6 age group All exceeded the PTMI limit (25 μg / kg BW); the average weekly exposure to total mercury was 0.67 to 2.02 μg / kg BW, accounting for 16.8% to 50.5% of PTWI. The main sources of dietary lead, cadmium and total mercury are rice and their products and fish and shrimp products. Conclusion The total mercury exposure in the diet of residents in Shaoxing is safe, but the dietary exposure to lead and cadmium is high, especially for those below 18 years old. It is necessary to strengthen the monitoring of lead and cadmium in food and dietary guidance.