Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Nonpoint Pollutants Sources Characteristics of Initial Surface Runoff on the Land Use Types

토지이용별에 따른 초기강우 유출량의 비점오염물 특성 분석

  • Choi, Yun-Yeong (School of Architecture Urban Environmental Engineering, Kyungpook National University) ;
  • Jung, Se-Young (School of Architecture Urban Environmental Engineering, Kyungpook National University) ;
  • Choi, Jeong-Woo (School of Architecture Urban Environmental Engineering, Kyungpook National University)
  • 최윤영 (경북대학교 건축도시환경공학부) ;
  • 정세영 (경북대학교 건축도시환경공학부) ;
  • 최정우 (경북대학교 건축도시환경공학부)
  • Received : 2011.02.21
  • Accepted : 2011.03.11
  • Published : 2011.03.31
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Abstract

This study was conducted to investigate runoff characteristics of non-point pollutants source at the urban and rural zones in sangju area. The monitoring was conducted with seven events for ten months and Event mean Concentration(EMC) and First Flush Effect(FFE) of SS and BOD were calculated on the result of the water quality parameters. During rainfall event, the peak concentrations of SS and BOD were observed after 3~4 hours of rainfall in rural areas. Whereas, the peak concentrations occurred within 1~2 hours after rainfall and then the highest concentration of NPS pollutants sharply decreased, showing strong first flush effect in urban areas. The cumulative load curves for NPS pollutants showed above the $45^{\circ}$ straight line, indicating that fist flush effect occurred in urban areas. The mean SS EMC values of rural areas ranged from 0.9~3.3mg/L, it was higher value when compare to urban areas. While the mean BOD values of urban areas were shown the highest values.

Keywords

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