摘要
目的对浙江师范大学教室全年CO2体积分数进行测量分析,为改善教室环境提供依据。方法用红外线CO2测定仪定期测量大学教室课前、课末CO2体积分数,采用SPSS10.0软件包进行分析。结果大学教室全年课前CO2体积分数变化不大,其平均值在不同班级规模之间差异无显著性;课末CO2体积分数变化较大,在大型班级和中等班级的教室中变化更大,大型班级教室和中等班级教室之间全年课末CO2平均体积分数差异无显著性,但都显著高于小型班级教室;大型班级和中等班级的大学教室全年课末平均CO2体积分数都高于0.10%,小型班级教室则低于0.10%。结论降低教室内的课末CO2体积分数,尤其是大型班级教室和中等班级教室的课末CO2体积分数,确保高校师生身体健康。
Objective To analyze the volume fraction of CO_2 in the classrooms of Zhejiang Normal University, and to provide basis for the improvement of classroom environment. Methods Infrared CO_2 instrument was used to measure the volume fraction of CO_2 in university classrooms before and at the end of classes.Data were analyzed with SPSS 10.0.Results The volume fraction of CO_2 in university classrooms didn't changed much during a year, and no significant differences of the average existed in different sizes of classrooms. The volume fraction of CO_2 at the end of the classes changed much, especially in large and medium-sized classes, and the average wasn't distinctly different between large and medium-sized classes, but both of them significantly higher than the small ones. The average volume fractions of CO_2 at the end of classes in university classrooms during a year were above 0.10% in both large and medium-sized ones while below 0.10% in small classes. Conclusion The volume fraction of CO_2 should be reduced to ensure the teachers' and students' health, especially the one in large or medium-sized classrooms.
出处
《中国学校卫生》
CAS
北大核心
2005年第6期447-448,共2页
Chinese Journal of School Health
关键词
二氧化碳
空气质量
室内
学生保健服务
Carbon dioxide
Air quality,indoor
Student health services
