广藏列车乘客身体症状感觉的影响因素分析

目的了解广藏列车运行区间乘客身体症状感觉，并探讨其影响因素。方法列车运行在不同海拔高度时对列车车厢环境进行空气质量监测，在同一时段相应车厢内对部分乘客进行身体主观感觉调查。结果乘客出现头痛感觉的占34．4％，氧含量与其呈负相关，噪声与其呈正相关。乘客中出现喉咙干痒感觉的占51．5％，风速和湿度与其呈负相关。出现胸闷感觉的占60．8％，风速和湿度与其呈负相关，CO2浓度与其呈正相关。结论氧含量、风速、湿度、CO2浓度是广藏列车乘客身体症状感觉的重要影响因素。

Effect of Air Quality Inside Guangzhou-Tibet Train Compartment on the Physical Comfort of Passengers

Objectives To explore the effect of air quality inside the air-conditioned train compartment on the physical comfort of passengers to provide basis for the improvement of interior air quality. Methods Environmental monitoring and questionnaire surveys on the feeling of passengers during the journey were conducted. Results The content of 02 in the air and noises were important factors for the incidence of headache （34.4%） among passengers. Wind speed and humidity were the most significant factors causing dry throat （51.5%） and stuffiness （60.8%） of passengers; the concentration of CO2 was also important for the stuffiness. Conclusions The low content of 02 , fast wind speed, low humidity and high concentration of CO2 were the important factors causing uncomfortable sensation of passengers in varying degrees.