도심 초등학교 교실 내 미세먼지 특성 연구

• Published in: 한국대기환경학회지(국문) Vol. 37; no. 1; pp. 113 - 124
• Main Authors: 허수정(Sujeong Heo), 김도윤(Yoon Kim), 권예림(Yerim Kwoun), 이태정(Tae Jung Lee), 조영민(Young Min Jo)
• Format: Journal Article
• Language: Korean
• Published: 한국대기환경학회 01.02.2021
• Subjects: 대기과학; Chemical composition; PM< SUB> 2.5< School environment; Indoor air quality
• ISSN: 1598-7132; 2383-5346
• DOI: 10.5572/KOSAE.2021.37.1.113

In this study, PM10 and PM2.5 were collected in 20 indoor and outdoor spaces of 5 elementary schools in Seoul, and analyzed based on quantitative and qualitative characteristics. The concentrations of PM10 and PM2.5 in the classrooms distributed from 31.0 to 96.4 μg/m3 and 14.5 to 40.2 μg/m3. The I/O value of PM2.5 was 0.46 to 0.80, indicating that PM2.5 was less in indoors than outdoors. Since there were various sources in the classroom, the organic carbon contained in PM2.5 was 7.1~12.8 μg/m3, which was more than that of inorganic carbon (0.3~1.6 μg/m3) mainly originated from the outside. Among the metal components, Fe was the most found with an average of 0.226 μg/m3, and the concentrations of Pb and As were 0.013 μg/m3 and 0.002 μg/m3, respectively. The ionic component, NO3-, was the highest at 2.60 μg/m3 compared to other ions. Despite the small number of samples (100 filters), this study can contribute to understanding the current school environement by investigating classrooms operating under normal conditions. KCI Citation Count: 0