直接向轨道排泄粪便是否危害人体健康?许多研究表明,人体健康因轨道污染而受到的危害即使存在也很小。但是,二、三年前,一位西德科学家在其研究中提出了高速客车冲洗便器所出现的问题,即高速客车冲洗便器时,粪便微粒在高速作用下会散布于列车外表面,覆盖在车辆门把、外墙表面上,甚至可能通过餐车启开的车窗进入餐室 Excretion of manure directly to the track is harmful to human health? Many studies show that human health hazards due to orbital pollution, even if small, exist. However, two or three years ago, a West German scientist raised the issue in high-speed bus flushing toilets in his study that when the high-speed passenger bus flushes the toilet, the excrement particles are scattered on the outer surface of the train under the action of high speed. Car door handles, exterior wall surfaces, and even car windows that open through dining carts into the dining room