职业危害因素,特别是许多工业化学物质,虽然动物实验对生殖具有毒性,但其结果外推到人类目前仍有许多困难,主要问题是种间差异以及接触剂量和持续接触时间不同,因此仍然需要流行病学研究,应用调查方法对动物实验结果进行重新估价。不言而喻,流行病学研究人类接触有害因素对生 Occupational hazards, especially for many industrial chemicals, are reproductively toxic although animal experiments are still extrapolating to humans. The main problems are interspecies differences and differences in contact doses and duration of exposure, so there is still a need for Epidemiological studies, the application of survey methods to re-evaluate the experimental results of animals. It goes without saying that epidemiological studies of human exposure to harmful factors on the students