【摘要】 本文介绍了利用呼气中(气土)浓度测定法对上海纱罩厂部分工作人员体内钍含量进行调查的结果。调查人数为51人,其中行政人员6人,体内钍含量平均值为0.36Bq,与对照组0.33Bq 相比无显著差异;操作工人45人,平均值为1.65Bq,比对照组高4倍,最大值为8.35Bq,约高出24倍。还分析了呼气中(气土)浓度及体内钍含量与工种、工龄的关系,比较了呼气中(气土)浓度测定法与中子活化测定法的调查结果。更多还原

【Abstract】 In this paper the investigation rcsults of thorium body contentfor fifty one persons in Shanghai Mantle Factory are described.The averagethorium body content was 0.36 Bq for 6 administraters,which is noobviour different from the control value of 0.33 Bq,and 1.65 Bq for 45operating workers,which is 4 times higher than the control.The relation-ship between thorium body content and types of work and length of servicewas analysed.The investigation results from exhaled thoron method werecompared with those from neutron activation analysis.更多还原