Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Characteristics of Malodor Pollutants and Their Dispersion Measured in Several Industrial Source Regions in Yangsan

양산시 산업단지에서 측정한 악취물질의 농도 분포 특성 및 대기확산 모델링

  • Song, Sang-Keun (Coastal Environmental System School, Pusan National University) ;
  • Shon, Zang-Ho (Department of Environmental Engineering, Dong-Eui University) ;
  • Kim, Yoo-Keun (Division of Earth Environmental System, Pusan National University) ;
  • Park, Heung-Jai (School of Environmental Science & Engineering, Inje University)
  • 송상근 (부산대학교 연안환경시스템사업단) ;
  • 손장호 (동의대학교 환경공학과) ;
  • 김유근 (부산대학교 지구환경시스템학부) ;
  • 박흥재 (인제대학교 환경공학부)
  • Published : 2009.10.30
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Abstract

In this study, the environmental behavior of malodor pollutants (MPs: $H_2S$, $CH_3SH$, DMS, and DMDS) was investigated around areas influenced by strong anthropogenic processes based on observations and modeling study (a CALPUFF dispersion model). The MP emission concentrations were measured from 8 industrial source regions (tire plants (S1-S3), waste water disposal plant (S4), and oil refinery (S5) in an urban center area and paper mill/incineration plant (S6) and livestock feedlots (S7-S8) in Ungsang area) in Yangsan city during a fall period in 2008 (21 October 2008). Overall, the most MPs emitted from the urban center area were found to affect the malodor pollution in their downwind areas during early morning (06:00 LST) and nighttime (18:00 and 21:00 LST), compared with those in the Ungsang area. For malodor intensity, the most MPs in the urban center area (especially S1 and S2) were found to be a significant contributor, whereas $CH_3SH$ and $H_2S$ in the Ungsnag area (especially S6) were the dominant contributor. The model study showed agreement in the spatial distributions of simulated MPs with those of the observations. The largest impact of MPs in the urban center area on the malodor pollution in its residential areas occurred at S1, S2, and S3 sites during nighttime, while that of MPs in the Ungsang area occurred at S6 and S8 sites. This may be caused mainly by the high MP emissions and in part by wind conditions (prevailing northeasterly winds with low wind speeds of 2-3 m/s).

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