Study on Particulate Matter Concentration in the Indoor Air of Classrooms in a Beijing Primary School
Five classrooms in a Primary School in Xuanwu District of Beijing were chosen for investigation of indoor air quality.In the autumn measurement period and in the winter measurement period,various dust particle fractions (PM10 and PM2.5) were monitored indoors and outdoors continuously by portable monitors and samplers.Applying statistical software,the impact of different parameters on particulate matter (PM10 and PM2.5) mass concentration was then quantitatively analyzed.The main conclusions were included as follows: (1) Exposure to PM10 and PM2.5 in the indoor air of classrooms in autumn and in winter was high,especially that of PM2.5 in autumn.(2) The indoor PM10 and PM2.5 mass concentrations were related to different parameters including relative humidity,temperature,carbon dioxide,area of opened windows or louver windows,number of students and room volume/student and so on.(3) No marked differences in indoor PM10 and PM2.5 mass concentrations were observed between autumn and winter (p＞0.05).However,a statistically significant influence of class level on the indoor PM10 and PM2.5 mass concentrations was apparent in both measurement periods (p<0.05).
classroom inhalable particulates (PM10) fine participates (PM2.5) mass concentration
TAO Jiange
School of Economics and Management,Zhongyuan University of technology,Zhengzhou,China
国际会议
哈尔滨
英文
1419-1423
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）