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Evaluation of Pollutants Concentrations and Runoff Characteristics in Highway Rest Area  

Kim, Jeong-Hyun (경희대학교 대학원 토목공학과)
Kang, Hee-Man (한국도로공사 도로교통기술연구원)
Ko, Seok-Oh (경희대학교 공과대학 토목공학과)
Publication Information
International Journal of Highway Engineering / v.12, no.4, 2010 , pp. 131-137 More about this Journal
Abstract
The stormwater runoff from rest areas in highways are known as more polluted compared to highways because of more vehicle activities. This study is performed to find pollutant characteristics in the rest areas in the magnitude of statistical pollutant concentrations during storms. Washoff characteristics of pollutants from rest areas by monitoring of rainfall, runoff rate and runoff samples were evaluated. High concentrations of pollutants in runoff were observed at the beginning of runoff and rapid decrease thereafter, indicating that first-flush effects are clearly occurred. Event Mean Concentrations(EMCs) of TSS, COD, TN, and TP are estimated to be in the range of 31.04-127.11mg/L, 35.5-369.5mg/L, 2.62-9.86 mg/L, and 0.53-1.96mg/L, respectively. Heavy metals in runoff showed relatively high values, possibly due to the abrasion of brake pad or tire while cars are slowly moving for parking. EMCs of total Pb, total Cu, and total Ni are in the range of $1206-16293{\mu}g/L$, $237-7906{\mu}g/L$, and $53-6372{\mu}g/L$, respectively. Pollutant loading per rest area calculated by using EMC, flowrate and target area is also described for each pollutant.
Keywords
non-point source; highway rest area; event mean concentration; storm runoff; pollutant loading;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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