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http://dx.doi.org/10.17663/JWR.2018.20.4.314

Effect of Sampling Frequency for the Storm Runoff on BOD, T-P Loads Estimation of the Mixed Landuse Watershed  

Park, Hyunkyu (Department of Rural & Bio-systems Engineering Chonnam National University)
Beom, Jina (Department of Rural & Bio-systems Engineering Chonnam National University)
Choi, Dongho (National institute of Agricultural Sciences)
Jung, Jaewoon (Jeollanamdo Environmental Industries Promotion Institute)
Jeung, Minhyuk (Department of Rural & Bio-systems Engineering Chonnam National University)
Kim, Youngsuk (Yeongsan River Environment Research Center)
Choi, Yujin (National Institute of Environmental Research)
Jo, Youngjun (Korea Rural Community Corporation)
Yoon, Kwangsik (Department of Rural & Bio-systems Engineering Chonnam National University)
Publication Information
Journal of Wetlands Research / v.20, no.4, 2018 , pp. 314-321 More about this Journal
Abstract
In order to quantify nonpoint source pollution, it was proposed to sample at regular intervals of 1 hour for the first 24 hours of storm runoff process by National Institute of Environmental Research for the mixed landuse watershed. However, high frequency sampling requires intensive laboratory analysis and labor costs. In order to investigate the effect of longer sampling interval on the load estimation compared to the 1 hour sampling method, analysis was conducted using monitoring data from rural subwatershed, urban subwatershed, and outlet of the Pungyeongjeongcheon watershed. Statistical analysis revealed that mean of load estimation was not significantly different up to 4 hour sampling frequency. However, 3 hour sampling interval was found to be appropriate for the BOD and TP when it is judged that 10% or less of the difference in loading amount between the 1 hour and other sampling interval is reasonable. The results of this study can be used to conduct an effective monitoring system.
Keywords
Nonpoint source; Rainfall runoff; Sampling interval; Load estimation;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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