1　定义　劳动者工作时暴露于劳动场所有害物质中 ,通过劳动者的尿、血等机体试样 ,可以测知该有害物质的浓度及其代谢物浓度 ,这对预防危害的发生以及对危害大小提出警告是必需的 ,称之曰“生物学监测”。生物学监测值如果在“生物学容许值”的范围内 ,意味着大体可判断在这个 1 Definition Laborers exposed to harmful substances in workplaces during working hours can detect the concentration of the harmful substances and the concentration of their metabolites through laborers urine, blood and other body samples, which is of great importance in preventing the occurrence of hazards as well as the magnitude of the harm It is necessary to raise a warning, saying “biological monitoring.” If the biological monitoring value is within the range of “biological allowable value”, it means that the biological monitoring value can be roughly determined in this