도로노면 유출수의 비점오염원 배출 특성(1) - 기본 수질 항목Characteristics of Non-point Pollutants from the Road Runoff(1) - Water Quality
- Authors
- 박상우; 오재일; 최영화; 서정우
- Issue Date
- 2007
- Publisher
- 대한상하수도학회
- Keywords
- 비점오염원; 도로노면 유출수; 기본수질항목; 유량가중평균농도; 초기유출; Non-point source; Road runoff; Water quality; EMC; First-flush
- Citation
- 상하수도학회지, v.21, no.2, pp 225 - 233
- Pages
- 9
- Journal Title
- 상하수도학회지
- Volume
- 21
- Number
- 2
- Start Page
- 225
- End Page
- 233
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/30107
- ISSN
- 1225-7672
2287-822X
- Abstract
- Road runoff water is one of the non-point sources (NPSs) of pollution negatively influencing drinking water source. Numerous road runoff NPS waters have been studied for over the last decade. However, the sources of pollution can be conditional, seasonal, or accidental. Therefore, measurement of pollutant loadings in different site is necessary to estimate the effect of road runoff water. The objective of this study was to examine the quality of road runoff water from a city bridge in Seoul, Korea. This study was conducted for two years to assess annual discharge pollution loads. In this study, key water quality parameters including chemical oxygen demand (CODCr), biochemcial oxygen demand (BOD5), total nitrogen (T-N), total phosphorus (T-P), and suspended solid (SS) were measured at 18 different events. The results showed that typically the pollutant concentrations are higher at the beginning of each event and decrease afterwards. The first 20% of the volume of the runoff from each event is transporting 46% (CODCr), 48% (BOD5), 50% (T-N), 34% (T-P), 30% (SS), respectively. The event mean concentrations (EMCs) were CODCr (199 mg/L), BOD5 (41.2 mg/L), T-N (7.97 mg/L), T-P (0.42 mg/L) and SS (113 mg/L). Although the results were consistent with the previous study (Barbosa and Hvitved-Jacobsen, 1999), CODCr, BOD5, T-N exhibit a stronger first flush effect compared to the other contaminants.
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