1　噪声机车乘务员长期接触司机室噪声 ,不仅可损伤听力 ,还对身体其他系统器官产生伤害 ,可引起中枢神经系统大脑皮层功能紊乱 ,使抑制和兴奋过程失调 ,出现头昏、头痛、烦燥、易激怒、易疲倦、心悸、情绪不稳、反应迟缓及工作效率降低等表现。噪声可改变神经行为功能 ,有调查 1 noise Locomotive cabin crew long-term exposure to noise, not only can damage the hearing, but also to other body organs damage, can cause central nervous system cerebral cortex dysfunction, inhibition and excitement disorders, dizziness, headache, irritability, Irritability, fatigue, palpitations, emotional instability, slow response and work efficiency and other performance. Noise can change neurobehavioral functions, there is investigation