금호강 유입 지천별 강우 모니터링을 통한 비점오염원 관리방안 연구 = A Study on the Management of Nonpoint Pollution Source by Precipitation Monitoring by Tributary in Gumho River

국문 초록 (Abstract)

본 연구에서는 소유역별 비점오염원 관리 방안 수립을 위한 방법으로, 장기 모니터링 자료를 활용하여 첨두수질농도(Peak concentration)를 산정하고, 해당 농도를 기준으로 유출관련 다양한 평가 인자와의 비교 분석을 통해 대상 소유역별 비점오염원 관리 방안을 도출 하였다. 금호강 유역을 대상으로 2015부터 2017년까지 3년간 수행된, 총 113회 모니터링 자료를 분석한 결과, 모니터링 지점의 선행건기일수는 지역별로 1.0 ~ 14.0일 범위이며 총강수량은 상류 88.7 ㎜, 지류 101.3 ㎜, 하류 103.1 ㎜로 조사되었다. 오염물질항목별 평균 첨두수질농도까지 의 EMCs는 BOD는 3월, 4월, COD는 4월, SS는 4월, 8월, T-N은 4월, T-P는 8월에 가장 높은 값을 나타내었고, 모니터링 지점별 오염물질 평균 첨두수질농도까지의 EMC는 금호강 본류의 경우 4 ~ 8월, 지류의 경우는 3 ~ 8월의 봄 ~ 여름사이로 높은 첨두수질농도를 나타내는 것으로 조사되었다. 장기모니터링 자료를 활용하여 통계적 분석을 실시하고, 대상유역에 대한 오염원 조사 분석 결과를 활용하여, 지천별 소유역 기준 비점오염원 관리방안을 제시하였다. 유역별 오염원 비율을 분석하여 주요 오염원을 선정하고, 해당 오염원 저감에 적합한 비점저감기술을 제시하여, 추후 대상유역에 대한 비점오염원 관리계획 수립 시 기초자료로서 활용될 수 있도록 하였다.

다국어 초록 (Multilingual Abstract)

In this study, peak concentration was calculated using long - term monitoring results in order to establish nonpoint pollution source management plan for each station. Based on the estimated peak water concentration, the non - point pollution source management method was derived through comparison analysis with various evaluation factors related to runoff.
The 113 monitoring results of the Gumho River watershed were statistically analyzed. The number of dry days in the monitoring point was ranged from 1.0 to 14.0 days in each region. Total precipitation was 88.7 ㎜ upstream, 101.3 ㎜ tributary, and 103.1 ㎜ downstream. As a result of analysis of EMCs up to the average peak water quality concentration by pollutant item, BOD was highest in March and April, COD in April, SS in April and August, T-N in April and T-P in August. The peak EMCs of the pollutant up to the average peak pollutant concentration by the monitoring point was high in April - August in the main stream of the Gumho River and between spring and summer in March - August in the tributary. Statistical analysis was conducted using long - term monitoring data, and a non - point pollution source management plan was proposed based on the results of the nationwide pollution source analysis for the target watershed. By analyzing the pollutant ratio by watershed, we can select the main pollutant source and present the nonpoint pollution sources reduction technique suitable for the reduction of the pollutant source, so that it can be used as the basic data for establishing non - point pollutant management plan for the target watershed.

목차 (Table of Contents)

• Abstract
• 요지
• 1. 서론
• 2. 연구방법
• 3. 연구결과
• 4. 결론
• References

참고문헌 (Reference)

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4 Novotny, V., "Water Quality: Prevention, Identification and Management of Diffuse Pollution" Van Nostrand Reinhold 1994

5 Jung, D.H., "Stormwater Runoff Characteristics of Non-point Source Pollutants According to Landuse of Urban Area" 16 (16): 525-532, 2007

6 Bedient, P.B., "Stormwater Pollutant Load-runoff Relationship" 52 (52): 2396-2402, 1980

7 US. EPA, "Results of the Nationwide Urban Runoff Program, Vol. 1. Final Report. Water Planning Division" U.S. EPA 1983

8 NIER (National Institute of Environmental Research), "Customized Policy Suport for Nonpoint Polution Management and Water Circulation Improvement(I): Suwon, Doam Lake Nonpoint Source Polution Management Policy Fedback and Establishment of Necesary Water Circulation Improvement Areas" 2016

9 Daegu Regional Environment Agency, "A Study on the Influence of Nonpoint Source on the Gumho River Basin" 2016

10 US. EPA, "A Quick Reference Guide: Developing Nonpoint Source Load Allocations for TMDLs" 1991

11 Committee for the Nakdong River Water Management System, "A Monitoring and Management Scheme for the Non-Point Sources" 2016

12 Committee for the Han River Water Management System, "A Monitoring and Management Scheme for the Non-Point Sources" 2016

13 Committee for the Nakdong River Water Management System, "A Monitoring and Management Scheme for the Non-Point Sources" 2017