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随着我国电气化铁路的逐年增加,高压工频电场对铁路作业人员是否有影响这一问题,已引起了人们的普遍关注。目前,国内以电气化铁路作业人员为研究对象的报道还少见。为此,我们对成渝铁路和宝成铁路部分接触网工及线路工进行观察,对其血清谷丙转氨酶(SGPT)进行了检测研究,结果如下。 检验结果 为排除采样误差,本文正常限值为SGPT=667nmol·s~(-1)/L。 (一)观察组与对照组的SGPT比较:选择资中段接触网工53名为观察组,平均接触工龄10～20年。选择资中车站客运员、货运员24人,成昆线彭山段工人299人,成都造纸五厂工人203人,共526人为对照组。结果表明观察组与对照组的SGPT异
With the increasing of electrified railway in our country, the question of whether the high voltage power frequency electric field affects the railway operators has aroused people’s widespread concern. At present, reports of electrified railway operators in China are still rare. To this end, we have observed some of the workers who contacted the net workers and line workers of the Chengdu-Chongqing Railway and Baocheng Railway, and conducted tests on their serum alanine aminotransferase (SGPT). The results are as follows. The test results to exclude sampling error, the normal limit of this article SGPT = 667nmol · s ~ (-1) / L. (A) SGPT comparison between the observation group and the control group: 53 middle-selection contact network workers in the observation group, with an average exposure length of 10 to 20 years. The selected station in the station passenger and cargo crew of 24 people, into the Kunming Line Pengshan Section 299 workers, Chengdu Paper Factory five workers 203 people, a total of 526 people for the control group. The results showed that the observation group and control group SGPT different