某直通客车冬夏季车内微小气候及空气质量监测分析
Assessment of Microclimate and Air Quality Monitoring of a Through Train in Winter and Summer
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摘要:
目的 了解上海-九龙直通旅客列车(以下称"沪九直通客车")车内空气质量状况,分析不同季节行车时间对车内空气环境的影响,为做好列车卫生监督提供依据。 方法 2013年4月至2014年4月,对沪九直通客车车内微小气候(温度、湿度、风速)、空气质量CO2、CO、可吸入颗粒物(PM10)、甲醛、细菌总数、噪声等9个项目进行监测分析。 结果 沪九直通客车车内各卫生学项目监测结果合格率不高,冬季时只有CO合格,夏季时CO、PM10及甲醛(行车中和到站前)均合格,温度合格率最低。根据统计学分析,不同季节和行车时间各项目差异有统计学意义(P < 0.05)。 结论 沪九直通客车空气质量有待提高,行车时间的增加和季节的不同对车内微小气候及空气质量具有一定影响。 Abstract:Objective To obtain the status of the Shanghai-Kowloon Through Train interior air quality,analyse the influence of different seasons and running time on in-car air environment,provide reference for better train hygiene supervision. Methods Nine items,including microclimate (temperature,humidity,wind speed),air qualitycarbon dioxide (CO2),carbon monoxide (CO),inhalable particulate matter (PM10),formaldehyde,total bacteria countand noise of the Shanghai-Kowloon ThroughTrain were detected from April 2013 to April 2014. Results The yields of qualified items were low,including winter CO and summer CO,inhalable particulate matter and formaldehyde (running and before stops).Specifically,the yields of qualified temperature were found to be the lowest.Statistical differences in selected items occurred among seasons and running time. Conclusion The air quality of the Shanghai-Kowloon Through Train remains to be improved.Longer travel time and seasonal variations could influence the microclimate and air quality of the traingroup
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