新型双层空调旅客列车卫生学评价

为了解新型双层空调客车内卫生学状况，对行驶中的硬座和软座车厢的上、下层进行了卫生学调查。每层设前、中、后3点，司机室设1点。结果显示：两类车厢及司机室内微小气候指标中湿度、硬座车厢空气中CO2平均浓度超过国家卫生标准；软座车厢空气中CO2平均浓度叶未超标，但样品达标率人氏于硬座车厢，上层车厢的噪声强度高于下层车厢，并超标，硬座车厢噪声高于座车厢。

Evaluation on the Hygienic Status of New Double Decks Air Condition Train

In order to explore the hygienic status of new express double\|deck trains, a health investigation was carried out.The samples were collected in front,middle and back points of hard seat and soft seat, as well as driver room in new double decks condition traion.The monitoring item included microclimate (temperaure,humidity,wind speed etc.),air quality(concentration of CO\-2,CO)and some physics factors such as noise,shake.The results demonstrated that the humidity in both kinds of rooms and driver room all excess the national hygienic standards on public place,the average of concentration of CO\-2 in hard seat rooms also exceeded the standard.Although the concentration of CO in soft seat room did not exceeded the standard, the ratio of samples meeting with the standard in soft seat room is less than that in hard seat room.The degress of noise in up side room is stronger than that down side rooms,all excess the standard.Also the noise in hard seat rooms is stronger than that in soft seat rooms.