The Relative Importance of Indoor and Outdoor Sources for Determining Indoor Pollution Concentrations in Homes in Seoul, South Korea

Autor: Jae Young Lee, Kyunghwan Kim, Sung Hee Ryu, Chang Hyeok Kim, Gwi-Nam Bae
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Asian Journal of Atmospheric Environment, Vol 12, Iss 2, Pp 127-138 (2018)
Druh dokumentu: article
ISSN: 1976-6912
2287-1160
DOI: 10.5572/ajae.2018.12.2.127
Popis: This study measured indoor and outdoor levels of hydrocarbon volatile organic compounds (VOCs), such as benzene, toluene, ethylbenzene, and xylene isomers (collectively referred to as BTEX), as well as 13 carbonyl compounds, at 20 homes in Seoul, South Korea. Along with the sampling of BTEX and carbonyls, indoor concentrations of the air pollutants nitrogen oxide (NO) and carbon dioxide (CO2) were also measured at each home. These measurements were used to understand the characteristics of BTEX and carbonyls by calculating the various ratios and correlation coefficients between measured contaminant levels. We found that carbonyls were mostly originated from indoor sources, while BTEX were originated from both indoor and outdoor sources. A high correlation between indoor levels of NO and BTEX indicated that traffic emissions were also an important sources of BTEX.
Databáze: Directory of Open Access Journals
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