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KMID : 1024520100190070819
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Journal of the Environmental Sciences
2010 Volume.19 No. 7 p.819 ~ p.827
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Runoff Characteristics of Nonpoint Pollutants Source in Urban Area
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Lee Geon-Jik
Seong Jin-Uk
Park Ju-Hyun
Joe Gyu-Soo
Park Je-Chul
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Abstract
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This study was conducted to investigate runoff characteristics of non-point pollutants source at the urban area in boeun
area, Chungbuk Province. The monitoring site covering the watershed of 2.11 km2 contains about 40.3 % of total watershed
with the urban area. The monitoring was conducted with six events for five months and Event Mean Concentration(EMC)
and Site Mean Concentration(SMC) of SS, BOD, CODMn, T-N, T-P were calculated on the result of the water quality
parameters. As a result of the comparion between Arithmetic Mean Concentration and Event Mean Concentration, it showed that over all Event Mean Concentration was higher than Arithmetic Mean Concentration. And it showed that SS, BOD, T-P featured the first-flushing effect, showing relatively high concentration in early-stage storm event.
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KEYWORD
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Event mean concentration, Site mean concentration, First flush effect, Mass first flush ratio
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