Earticle

본 연구는 산업단지를 포함하는 대도시 지역의 강우유출특성을 평가하였다. 5년동안의 강우패턴은 거의 유사하게 분석되었고, 년 평균 강우량은 5.2∼6.6 ㎜로 나타났다. 일부 강우 사상에서는 초기유출 현상이 관찰되었고, 이때의 EMC는 BOD 19.3∼39.9 ㎎/L, CODcr 45.2∼190 ㎎/L, TSS 67.2∼351 ㎎/L, TN 3.6∼10.3 ㎎ /L, T-P 1.2∼2.5 ㎎/L였다. 단일 강우사상에서만 검출된 Zn를 제외하고는 중금속이 검출되지 않았다. 입자 분포는 3% 중량비로 10 ㎛였고, 50% 중량 누적비는 12 ㎛로 관찰되었다.

This study was investigated to characterize the stormwater runoff pollutant materials from the urban area mixed with industrial area. Almost the similar rainfall pattern is shown during the 5 years, and the yearly precipitation was 5.2∼6.6 ㎜. The first flushing effect during the early-stage rainfall-run off was observed in some events. EMC ranges are 19.3∼39.9 ㎎/L for BOD, 45.2∼190 ㎎/L for CODcr, 67.2∼351 ㎎/L for TSS, 3.6∼10.3 ㎎/L for TN, 1.2∼2.5 ㎎/L for TP. Heavy metal are not detected except Zn which is observed at only one event. The particle size was distributed to 10 ㎛ at the 3% weight volume and the 50% cumulative weight percent was shown at 12 ㎛