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http://dx.doi.org/10.17663/JWR.2012.14.2.159

Characteristics of stormwater runoff from urbanized areas  

Mercado, Jean Margaret R. (Dept. of Civil and Envi. Eng., Kongju National University)
Geronimo, Franz Kevin F. (Dept. of Civil and Envi. Eng., Kongju National University)
Choi, Jiyeon (Dept. of Civil and Envi. Eng., Kongju National University)
Song, Young-Sun (Dept. of Civil and Envi. Eng., Kongju National University)
Kim, Lee-Hyung (Dept. of Civil and Envi. Eng., Kongju National University)
Publication Information
Journal of Wetlands Research / v.14, no.2, 2012 , pp. 159-168 More about this Journal
Abstract
Stormwater runoff affects the quality of surface water and groundwater due to the nonpoint sources (NPSs) of pollutants that it carries during storm events. Typically, urbanized areas experience high pollutant mass emission because of paved roads and other areas which are all highly impervious. For this reason, proper identification of the levels of pollutants from the watershed area is important to pass the Ministry of Environment of the Republic of Korea's water quality standards in rivers and streams. This research was conducted in order to determine and quantify the different constituents present in stormwater runoff generated from highly impervious areas in Cheonan City, Korea. Also, the average event mean concentration (EMC) of stormwater runoff from paved areas was compared with EMCs of other countries to determine the possible causes of its occurrence. In addition, the occurrence of first flush phenomenon was studied in order to find the first flush criteria to be used on the design of best management practices. The results show the pollutant concentration of stormwater runoff was higher than other countries due its landuse and relatively small size of catchment area. During the first 30 minutes of the rainfall events, occurrence of first flush phenomenon was highly evident. Several factors affected the pollutant concentrations in the stormwater such as landuse type, geographic and topographic characteristics,catchment area and amount of rainfall. This research can provide guidance in achieving an effective NPS pollution management applicable to highly urbanized areas in the future.
Keywords
Event mean concentration; First flush; Nonpoint source pollution; Paved areas; Stormwater runoff;
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Times Cited By KSCI : 1  (Citation Analysis)
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