Mohammadyan Mahmoud, Shabankhani Bijan
Arh Hig Rada Toksikol. 2013 Sep;64(3):371-7. doi: 10.2478/10004-1254-64-2013-2346.
This study was carried out to determine the distribution of particles in classrooms in primary schools located in the centre of the city of Sari, Iran and identify the relationship between indoor classroom particle levels and outdoor PM2.5 concentrations. Outdoor PM2.5 and indoor PM1, PM2.5, and PM10 were monitored using a real-time Micro Dust Pro monitor and a GRIMM monitor, respectively. Both monitors were calibrated by gravimetric method using filters. The Kolmogorov-Smirnov test showed that all indoor and outdoor data fitted normal distribution. Mean indoor PM1, PM2.5, PM10 and outdoor PM2.5 concentrations for all of the classrooms were 17.6 μg m(-3), 46.6 μg m(-3), 400.9 μg m(-3), and 36.9 μg m(-3), respectively. The highest levels of indoor and outdoor PM2.5 concentrations were measured at the Shahed Boys School (69.1 μg m(-3) and 115.8 μg m(-3), respectively). The Kazemi school had the lowest levels of indoor and outdoor PM2.5 (29.1 μg m(-3) and 15.5 μg m(-3), respectively). In schools located near both main and small roads, the association between indoor fine particle (PM2.5 and PM1) and outdoor PM2.5 levels was stronger than that between indoor PM10 and outdoor PM2.5 levels. Mean indoor PM2.5 and PM10 and outdoor PM2.5 were higher than the standards for PM2.5 and PM10, and there was a good correlation between indoor and outdoor fine particle concentrations.
本研究旨在确定伊朗萨里市中心小学教室中颗粒物的分布情况，并确定室内教室颗粒物水平与室外PM2.5浓度之间的关系。分别使用实时微型粉尘探测器和 Grimm 监测仪监测室外PM2.5以及室内PM1、PM2.5和PM10。两种监测仪均采用重量法通过滤膜进行校准。柯尔莫哥洛夫-斯米尔诺夫检验表明，所有室内和室外数据均符合正态分布。所有教室的室内PM1、PM2.5、PM10以及室外PM2.5的平均浓度分别为17.6 μg/m³、46.6 μg/m³、400.9 μg/m³和36.9 μg/m³。室内和室外PM2.5浓度的最高值出现在沙赫德男子学校（分别为69.1 μg/m³和115.8 μg/m³）。卡泽米学校的室内和室外PM2.5浓度最低（分别为29.1 μg/m³和15.5 μg/m³）。在靠近主干道和小路的学校中，室内细颗粒物（PM2.5和PM1）与室外PM2.5水平之间的关联强于室内PM10与室外PM2.5水平之间的关联。室内PM2.5和PM10以及室外PM2.5的平均值高于PM2.5和PM10的标准，并且室内和室外细颗粒物浓度之间存在良好的相关性。
