Indoor and outdoor air quality investigation at universities in Wuhan
The indoor and outdoor pollutants levels and environmental parameters were measured in three universities to study the air quality in universities classrooms. The results show that the indoor air quality is related to the type of ventilation system. The pollutants levels could be at low level in central air-conditioning classroom with outdoor air supply. The dust that produced by writing on the blackboard with chalk was the main indoor source of particulate matter. The PM 10 level could be 0.934 mg/m3 that was 6.23 times above Chinese Indoor Air Quality Standard. It has been found that the average ratios of the indoor and outdoor levels of CO and CO2 were 0.89 (S.D.=0.33) and 2.90 (S.D.=1.69), respectively. CO2 and particlulate matter were the two main air quality problems in university classroom. Good ventilation and avoiding unnecessary indoor air pollution sources, such as chalk writing, were the good methods to improve indoor air quality in university classroom.
Indoor air quality Particulate matter Carbon dioxide Classroom Natural ventilation
Xiaojiang Ye Huanxin Chen Zhaoxia Zhou Zhiwei Lian
School of Power and Energy, Huazhong University of Science and Technology, Wuhan 430074, China；Schoo School of Power and Energy, Huazhong University of Science and Technology, Wuhan 430074, China School of Science, Wuhan Institute of Technology Wuhan 430073, China School of Energy and Environmental Engineering, Zhongyuan University of Technology Zhenzhou 450007,
国际会议
北京
英文
2007-09-07（万方平台首次上网日期，不代表论文的发表时间）