dzȯ ȸ
15 1ȣ, March 2016
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ISSN : 2288-9167 (Print)
ISSN : 2288-923X (Online)
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Comparative analysis of level of VOCs contamination in the indoor and
outdoor of school classroom located close to Shihwa industrial complex
1ȸ23öȣ31*
Abstracts
This study attempts to investigate the impact of pollution by VOCs at schools located around Shihwa national
industrial complex. Schools around the Shihwa national industrial complex were divided into two categories based
on location, with five schools located near the industrial complex and five schools located near housing
development. Samples of the indoor air and the outdoor air were collected from each classified school and analyzed
to evaluate the impact of the industrial complex on each school through a comparison and to find the correlation
between them. In combination with this, this study attempted to conduct comparative evaluations of the schools
in which there might be relatively higher indoor air pollution since new construction and extension or remodelling
had recently been carried out with other schools. The samples collected from 10 places in total were analyzed,
using GC/MS. TVOCs, and individual component of VOCs, were detected in the schools near shihwa national
industrial complex at higher levels than in the schools nearby housing development. TVOCs were detected at the
schools in the industrial complex st levels of 166.5 g/m3, that is, about 1.5 times higher than the level detected
at the schools outside the industrial complex. TVOCs were found in the indoor air of the schools that had been
extended or remodelled less than 3 years ago at levels of 188.8 g/m3, while in schools where more than 3 years
had passed since extention or remodelling they were found at levels of 97.5 g/m3, meaning they were about 1.9
times higher in schools in the first 3 years.
Keywords : Industrial complex, School indoor environment, TVOCs, VOCs