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http://dx.doi.org/10.17663/JWR.2017.19.4.515

Determination of the number of storm events monitoring considering urban stormwater runoff characteristics  

Choi, Jiyeon (Water Environment Research Department, National Institute of Environmental Research)
Na, Eunhye (Water Environment Research Department, National Institute of Environmental Research)
Kim, Hongtae (Water Environment Research Department, National Institute of Environmental Research)
Kim, Jinsun (Water Environment Research Department, National Institute of Environmental Research)
Kim, Yongseck (Water Environment Research Department, National Institute of Environmental Research)
Lee, Jaekwan (Water Environment Research Department, National Institute of Environmental Research)
Publication Information
Journal of Wetlands Research / v.19, no.4, 2017 , pp. 515-522 More about this Journal
Abstract
This study investigated the runoff characteristics containing NPS pollutants in urban areas and estimated the optimal number of storm events to be monitored. 13 residential areas, 8 commercial areas, 9 transportation areas and 11 industrial areas were selected to be monitored located in urban areas. Monitoring was performed from 2008 to 2016 with a total of 632 rainfall events. As a result, it was found that commercial area needs priority NPS management compared to other landuses because the commercial area has high runoff coefficient and NPS pollutant EMC compared with other landuses. The annual monitoring frequency for each landuse was estimated to be 11 to 14 times for industrial area, 12 to 14 times for transportation area, 11 to 13 times for commercial area and 22 to 25 times for residential area. Even with the use of accumulated monitoring data for several years, there is still high probability of uncertainty due to high error in some pollutant items, and it is necessary to establish monitoring know-how and data accumulation to reduce errors by continuous monitoring.
Keywords
Event mean concentration(EMC); monitoring; number of storm events; urban stormwater runoff; site mean concentration(SMC);
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Times Cited By KSCI : 5  (Citation Analysis)
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