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On-line GC Analysis of Odorous VOC and S Gas Pollutant Levels in Ambient Air of a Residential Area at Ansan City, Korea  

Kim K.-H (세종대학교 지구환경과학과)
Ju DW (ITC 21)
Choi YJ (세종대학교 지구환경과학과)
Hong YJ (세종대학교 지구환경과학과)
Sa JH (세종대학교 지구환경과학과)
Park JH (세종대학교 지구환경과학과)
Jeon EC (세종대학교 지구환경과학과)
Choi CR (안양대학교 환경공학과)
Koo YS (안양대학교 환경공학과)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.21, no.1, 2005 , pp. 107-118 More about this Journal
Abstract
In this study, the concentrations of major odorous compounds including reduced sulfur compounds (OMS, CS$_2$, and DMDS) and aromatic VOC (benzene, toluene, xylene, etc.) were measured continuously using an on-line GC analytical system. Our measurements were made from a residential area of Ansan sity during about two week period of October, 2004. The highest mean concentrations of Sand VOC were found as 56.9 pbb of DMS and 21.7 ppb of toluene, respectively. The results of this study generally show that the pollution levels for both types of chemicals are significant relative to previous measurement results reported from comparable sites, if the results are compared simply in terms of the magnitude of the measured concentration data. Moreover, when the relative importance of different compounds is compared in terms of the odor strength, it indicated that the contribution of reduced S compounds may be much more important than that of VOC in the study area.
Keywords
Malodor; Sulfur gas; VOC; GC; Ambient air; On-line analysis;
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