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http://dx.doi.org/10.5322/JES.2012.21.8.977

Estimation of Runoff Characteristics of Non-point Pollutant Source by Land Cover Characteristics  

Lee, Jae-Woon (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
Yi, Youn-Jeong (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
Kwon, Hun-Gak (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
Yoon, Jong-Su (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
Lee, Chun-Sik (Department of Environmental Engineering, Kyeongnam National University of Science and Technology)
Cheon, Se-Uk (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
Publication Information
Journal of Environmental Science International / v.21, no.8, 2012 , pp. 977-988 More about this Journal
Abstract
This study analyzed the characteristics of stormwater runoff by rainfall type in orchard areas and transportation areas for 2 years(2010~2011year). Effluents were monitored to calculate the Event Mean Concentrations(EMCs) and runoff loads of each pollutant. The pollutant EMCs by volume of stormwater runoff showed the ranges of BOD 0.9~13.6 mg/L, COD 13.7~45.2 mg/L, SS 4.1~236.4 mg/L, T-N 2.123~21.111 mg/L, T-P 0.495~2.214 mg/L in the orchard areas, and was calculated as BOD 2.3~22.5mg/L, COD 4.4~91.1 mg/L, SS 4.3~138.3 mg/L, T-N 0.700~13.500 mg/L, T-P 0.082~1.345 mg/L in the transportation areas. The correlation coefficient of determination in the orchard area was investigated in the order of Total Rainfall(0.81) > Total Runoff(0.76) > Rainfall Intensity(0.56) > Rainfall Duration(0.46) > Antecedent Dry Days(0.27). Also, in the case of the transportation area was investigated in the order of Total Rainfall (0.55) > Total Runoff(0.54) > Rainfall Intensity(0.53) > Rainfall Duration(0.24) > Antecedent Dry Days(0.14). As the result, comparing valuables relating to runoff of non-pollutant source between orchard areas and transportation areas, orchard area($R^2{\geq}0.5$ : X3, X4, X5) was investigated to have more influence of diverse independent valuables compared to the transportation area($R^2{\geq}0.5$ : X3, X4) and the difference of discharge influence factor by the land characteristics appeared apparently.
Keywords
Non-point; EMCs; Pollution load; Orchard area; Transportation area;
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