摘要
[目的]探讨建筑条件、教室内在座人数和开门窗通风总面积(TVA)对室内空气质量的影响,为修订相关的卫生标准提供依据。[方法]2009年5月上旬,选取大连市城区高中中内廊、单内廊教学楼的各1栋,调查通风条件并比较其教室内二氧化碳浓度。[结果]检测35间足员教室,二氧化碳浓度合格的9间,合格率为25.71%,其中,中内廊、单内廊布局的教室合格率分别为26.67%、25.00%(P>0.05)。二氧化碳浓度合格教室的TVA为1.875±0.795m2,不合格教室的TVA为1.387±0.932m2(P>0.05)。检测4间空教室中,3间二氧化碳浓度不合格,TVA均≤0.50m2。[结论]开门窗通风总面积对学校教室空气质量有一定影响。是否单内廊设计、在座人数的影响则有限。
[Objective] To investigate some factors on the classroom air quality,such as building conditions,the number of students and total ventilation area（TVA）,to provide basis of revising related hygienic standard.[Methods]On May 11th,2009,in Dalian,CO2 concentration（CC）was surveyed in 15 both corridor-sides deployed classrooms（BCDC）and 20 single corridor-side deployed classrooms（SCDC）.[Results]In 35 ＂full-member classroom＂（FMC）,there were 9 rooms which CC were qualified（25.71%）,and the qualified rate of CC was 26.67% of BCDC and 25.0% of SCDC respectively（P0.05）.The TVA＇s mean of the classrooms which CC were qualified was 1.875± 0.795 m2,while the mean of unqualified classrooms was 1.387±0.932 m2.Except them,in other four ＂empty classroom＂（EC）,there were 3 rooms which TVA were all ≤0.50 m2,and their CCs were unqualified（0.150%）.[Conclusion]TVA can influence the CC to a certain degree.However,we can＇t rashly deem that SCDC and EC are superior to BCDC and FMC on CC respectively.
出处
《预防医学论坛》
2010年第6期539-541,共3页
Preventive Medicine Tribune
关键词
教室
室内空气
二氧化碳
建筑
通风
Classroom
Indoor air
Carbon dioxide
Building
Ventilation
