Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Runoff Characteristics of Non-point Pollutants Source in Suwon City

수원시 비점오염물질의 유출 특성

  • Chi, Hong-Jin (Water Management Division, City of Suwon) ;
  • Lee, Sang-Eun (Environmental, Civil and Transportation Engineering, Ajou University) ;
  • Lee, Jae-Dong (Environmental and Energy Engineering, Gachon University)
  • 지홍진 (수원시청 물관리과) ;
  • 이상은 (아주대학교 환경공학과) ;
  • 이재동 (가천대학교 환경에너지공학과)
  • Received : 2013.02.26
  • Accepted : 2013.04.25
  • Published : 2013.04.30
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Abstract

This study was to investigate the runoff characteristics of non-point pollutants source at the urban area in Suwon city. The highest T-N and T-P concentration of rainfall runoff observed in agricultural area. In residential area, the highest $BOD_5$ and SS concentration of rainfall runoff was investigated. During rainfall events, the peak concentrations of SS and $BOD_5$ were observed after 1~2 hours of rainfall in urban area. Whereas, the peak concentrations occurred within 1~2 hours after rainfall and then the highest concentrations of SS and $BOD_5$ sharply decreased, showing strong first flush effect in urban area. The EMC results indicated that the highest value of T-N and T-P in agricultural area was observed. While residential area was shown the lowest EMC value as T-N and T-P. Non-point pollutant loads on the land use types in urban area were investigated in the order of residential>industrial>agricultural>highway. $BOD_5$ and SS loads on urban watershed were investigated in the order of Suwon>Hwangguji>Seoho>Wonchunri. Whereas, T-N and T-P loads on urban watershed were investigated in the order of Hwangguji>Suwon>Wonchunri>Seho.

Keywords

References

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