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http://dx.doi.org/10.5806/AST.2007.20.6.474

Seasonal variations of volatile organic compounds (VOCs) in indoor air of daycare centers  

Jang, Seong-Ki (Indoor Air Quality Division, National Institute of Environmental Research)
Chun, Jae-Young (Indoor Air Quality Division, National Institute of Environmental Research)
Kim, Sung-Youn (Indoor Air Quality Division, National Institute of Environmental Research)
Park, Suk-Young (Indoor Air Quality Division, National Institute of Environmental Research)
Ryu, Jung-Min (Indoor Air Quality Division, National Institute of Environmental Research)
Lim, Jung-Yeon (Indoor Air Quality Division, National Institute of Environmental Research)
Lee, Woo-Suk (Indoor Air Quality Division, National Institute of Environmental Research)
Publication Information
Analytical Science and Technology / v.20, no.6, 2007 , pp. 474-482 More about this Journal
Abstract
Daycare centers are an important indoor environment for pre-school children and exposure area with potential harmful health effects for infants and children who spend most of their daily life. Sampling was undertaken at 29 daycare centers located Seoul in Korea from January, 2006 to December 2006. The target compounds were 7 individual volatile organic compounds (benzene, toluene, ethylbenzene, m,p-xylene, styrene, o-xylene, TVOC). The mean concentrations of TVOC, toluene, m ,p-xylene, ethylbenzene, benzene and styrene in daycare centers were $318.7{\mu}g/m^3$, $51.6{\mu}g/m^3$, $11.7{\mu}g/m^3$, $6.5{\mu}g/m^3$, $4.2{\mu}g/m^3$, $3.6{\mu}g/m^3$, respectively. Toluene occupied 17.6 % of the concentration of individual VOCs. The ratio of indoor and outdoor (I/O) of TVOC and toluene were 2.0 and 1.6, respectively. The results of characteristics according to a season of a year, the concentration of TVOC were measured $433.9{\mu}g/m^3$, and these concentrations during third quarter of the year in summer were higher than the other season. In the other four seasons, TVOC were measured 280.5 in winter, 298.3 in spring and $264.6{\mu}g/m^3$ in fall, respectively.
Keywords
indoor air; volatile organic compounds(VOCs); daycare centers; season;
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