PM10, O3, CO Concentrations and Elemental Analysis of Airborne Particles in a School Building |
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Authors: | A G Triantafyllou S Zoras V Evagelopoulos S Garas |
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Institution: | (1) Laboratory of Atmospheric Pollution and Environmental Physics, Technological Education Institute of West Macedonia, Kila, 50100 Kozani, Greece |
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Abstract: | Measurements of indoor and outdoor PM10, as well as indoor O3 and CO concentrations were conducted and are presented here. These measurements were carried out at an institute building,
located in a suburban industrial area in Greece. Both indoor and outdoor PM10 samples were also collected and their elemental
composition was identified by ED-XRF analysis. Twenty seven major, minor and trace elements were identified. The measurements
took place generally in different periods of institute operation, from June 2004 to February 2005. The indoor PM10 concentrations
which were measured during the normal operation period of the institute were found to be many times higher than the respective
outdoor PM10 concentrations of the same periods. On the contrary, the indoor PM10 concentrations which were measured during
the holiday period were found to be lower than their corresponding outdoor values. Indoor O3 and CO concentrations were found to be in low level. Indoor PM10 concentrations were found to be in a relative good correlation
with O3 (r = 0.45) and in high correlation (r = 0.98) with CO concentrations. On average, total elements concentrations were much higher indoors relative to outdoors.
Based on above findings we attempted to determine the pollution sources of the indoor environment and to investigate some
parameters or chemical processes that affect indoor pollutants’ levels. |
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Keywords: | PM10 O3 CO indoor levels Indoor air quality PM10 elemental analysis Environmental tobacco smoke School buildings I/O ratio |
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