Indoor PM1, PM2.5, PM10 and Outdoor PM2.5 Concentrations in Primary Schools in Sari, Iran

  • Mahmoud Mohammadyan Health Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran
  • Bijan Shabankhani Faculty of Health, Mazandaran University of Medical Sciences, Sari, Iran
Keywords: indoor particle concentrations, outdoor particle concentrations

Abstract

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.

Published
2013-09-15
How to Cite
1.
Mohammadyan M, Shabankhani B. Indoor PM1, PM2.5, PM10 and Outdoor PM2.5 Concentrations in Primary Schools in Sari, Iran. Arh Hig Rada Toksikol [Internet]. 2013Sep.15 [cited 2024Mar.29];64(3). Available from: https://arhiv.imi.hr/index.php/arhiv/article/view/73
Section
Scientific Paper