为了解我国西南山区旅客列车车厢内空气污染状况,探讨其对列车乘务员健康的影响,为今后山区铁路牵引动力的选择和旅客列车通风设施的改进提供卫生学依据,我们于1984年2～5月对西南山区以蒸汽、内燃、电力机车为牵引动力的成达、成昆、宝成三线部分列车的车厢内空气污染状况和乘务员健康状况进行了调查,并对二者间关系进行了初步探讨,结果如下。内容与方法 In order to understand the air pollution in the train compartment of passenger trains in southwest mountainous area of ​​our country and to explore its health effects on the flight attendants’ health, this paper provides the hygiene basis for the choice of tractive power and the improvement of passenger train ventilation facilities in mountainous areas in the future. From February to May, 1984 In the southwestern mountainous area, the air pollution status and flight attendant health status of the third train with the steam, internal combustion and electric locomotive as the traction power, Chengdu-Kunming and Baocheng lines were surveyed, and the relationship between the two was first discussed. The result is as follows. Content and method