当代,镉、汞和铅已成为毒理学方面最重要的重金属。人体摄入镉后,大约所吸收量的50%存在于肝、肾中。而就镉浓度而言,肾皮质比总肾高50%。因此可以用肝和肾皮质中镉含量评价总体负荷,用不同历史时期的肝肾样品含镉量估计机体镉负荷。调查材料:有1897～1939年(死亡年份) Contemporary, cadmium, mercury and lead have become the toxicology most important heavy metals. About 50% of the absorbed amount is present in the liver and kidneys after cadmium ingestion. In terms of cadmium concentration, renal cortex 50% higher than the total. Therefore, the total load of cadmium in liver and kidney cortex can be evaluated, and cadmium load of liver and kidney samples in different historical periods can be estimated. Survey Materials: 1897 ~ 1939 (year of death)