MASS CONCENTRATION OF AIRBORNE PARTICULATE MATTER IN CLASSROOMS OF CHINA

摘要：

Particle pollution was serious in classrooms and greatly harmed the health of students and teachers in China. Concentrations of PM10 (particles＜10μm in diameter) on workdays were obviously higher than weekends’. In contrast, concentration of PM2.5 (particles＜2.5μm in diameter) was similar in the whole week. At the same school, the association of PM10 in different classrooms was weak, whereas that of PM2.5 was strong. Compared with particulate matter (PM) in ambient, PM in classrooms had higher concentrations, of which coarse fraction (PM10-2.5) was the major portion which came from the resuspension of crustal matter by students’ activities. In conclusion, PM10 in classrooms, included a quite amount of resuspension of crustal matter due to personal activities and chalk dust, and PM2.5 was mainly affected by PM in ambient.

作者: Bingbing SHI Qihong DENG Qiming LV Qi WANG Jiandong LI

作者单位: School of Energy Science and Engineering, Central South University,Changsha, 410083, Hunan, P.R. China

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）