目前我国车站上水管大肠菌群污染十分严重，为了解受大肠菌群污染的上水管对列车用水卫生质量的影响，我们于１９９７年５月、６月对成都火车北站上水管及其水质进行了调查检测，本次调查对于保障旅客和乘务人员身体健康，有着十分重要的意义。１内容和方法１．１调查对象... At present, the pollution of coliform bacteria on the water pipes of our country station is very serious. In order to understand the influence of upper water pipe polluted by coliform bacteria on the sanitary quality of train water, we conducted the water pipe and its water quality of Chengdu North Railway Station in May and June 1997 The investigation and testing, the survey for the protection of passengers and crew health, has a very important significance. 1 content and methods 1.1 survey ...