Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Determination of Event Mean Concentrations and Pollutant Loadings in Highway Storm Runoff

고속도로 강우 유출수내 오염물질의 EMC 및 부하량 원단위 산정

  • Kim, Lee-Hyung (Dept. of Civil & Environment Engineering, Disaster Prevention Research Center, Kongju National University) ;
  • Kang, Joohyon (Dept. of Civil & Environmental Engineering, University of California)
  • Received : 2004.07.12
  • Accepted : 2004.10.12
  • Published : 2004.11.30
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Abstract

This research was conducted to understand the magnitude and nature of the stormwater emissions with the goal of quantifying stormwater pollutant concentrations and mass emission rates of pollutants. Eight highway sites in Southern California area were monitored for three years with collecting of grab and flow-weighted composite samples, rainfall and runoff flow. Generally the EMCs cannot be determined by simple statistical averaging of measured pollutant concentrations because of random characteristics of runoff quality and quantity. Therefore, this manuscripts will show a new EMC determination method. The EMC ranges of 95% confidence intervals are 102.78-216.37mg/L for TSS, 104.53-251.79mg/L for COD, 5.42-10.58mg/L for oil & grease and 2.42-10.18mg/L for TKN. The ranges of washed-off mass loading are determined to $0.06g/m^2-17.27g/m^2$ for TSS and $0.1-3.23g/m^2$for COD.

Keywords

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