北京市城区两所学校教室内二氧化碳浓度监测结果与分析

Monitoring results and analysis on CO_2 concentration in two schools of Beijing

为了深入了解北京市城区学校教室内二氧化碳的浓度水平及变化规律,随机抽取城区的一所中学和一所小学,对学校教室内的二氧化碳浓度进行实时在线监测。结果表明,所监测教室内二氧化碳浓度水平有超标现象,二氧化碳浓度变化具有一定的规律,中学教室内的二氧化碳浓度水平比小学教室高,冬夏季教室内二氧化碳浓度较春秋季高,上课时间二氧化碳浓度较高,而且每节课上课时间二氧化碳浓度逐渐上升。通过此项研究可以找出超标现象原因,提出卫生监督管理对策和学校自身管理措施,为修订相关法律法规和标准提供依据。今后还有待建立预警机制,对学校教室的空气改善措施进行效果评估,以有效提高学校教室的空气质量,保障学生身体健康。

In order to know the concentration of carbon dioxide levels in the urban area of Beijing school classroom and make some changes on the law,we randomly chose a middle school and a primary school to monitor the carbon dioxide.We got the data through the real-time online monitoring method.The results show that the schools for monitoring carbon dioxide levels in the classroom have a violation,CO2 concentration changes has certain regularity,high school classroom concentrations of carbon dioxide levels higher than primary school classroom,summer and winter seasons can help increase the concentration,class time CO2 concentration is higher,and the time for each class gradually rising carbon dioxide levels.Through the study we found out the cause of the overweight phenomenon,put forward the health supervision and management of the school＇s own management measures and countermeasures for the revision of relevant laws,regulations and standards.In the future remains to be established early warning mechanism,the air of the classroom to the school improvement measures for evaluation,to effectively improve the air quality of the school classroom,students physical health.