낙동강수계 권역별 비점오염원 오염도 평가

이재운 ( Jaewoon Lee ),권헌각 ( Heongak Kwon ),최한영 ( Hanyoung Choi ) 한국환경영향평가학회 2014 환경영향평가 Vol.23 No.5

influence area In this study, the nonpoint sources were evaluated by calculating the Nadonggang basin regional water quality and nonpoint source pollution load discharged. And were selected the banks of first administration based on the results and the direction of the next administration. As a results of estimating the water quality about BOD concentration in the mid influence area in the Nakdonggang basin, it was founded that 10 sites for ‘Ia’ water quality level, 6 sites for ‘lb’ water quality level, 5 sites for ‘Ⅱ’ water quality level, 1 sites for ‘Ⅰ’ water quality level. The estimation of COD concentration in the mid influence area, It showed that 9 sites for ‘Ib’ water quality level, 6 sites for ‘Ⅱ’ water quality level, 6 sites for ‘Ⅲ’ water quality level, 1 site for ‘Ⅳ’ water quality level. The assessment of water quality made Mid influence area of Gumhogang, Nakdong Goryung, Nakdong Milyang and Namgang selected as the mid influence area of high pollution. And delivery loads of nonpoint sources were calculated for mid influence area in Nakdonggang basin(max delivery load : 17,706.7 ㎏/day for Gumhogang influence area). As the result of calculating NPS(nonpoint sources) delivery load and water quality at influence area in Nakdonggang basin, Gumhogang influence area was selected as an area for management priority among nonpoint sources.

농촌지역의 비점오염원 유출 특성에 관한 연구

정장표,차건봉,김좌관 慶星大學校 環境問題硏究所 1993 環境硏報 Vol.3 No.1

The purpose of this study is to find out characteristics of nonpoint source-pollutant loads For this, in the aspect of water guality Change during storm days, the relationship between Stream flow and pollutant mass loads was studied. Also the contributions of loading rates from nonpoint sources were calculated. In this study, the drainage area of Sooyeong river, upstream of the Hoedong reservoir, was investigated. The reservoir used for drinking water source in Pusan, is located in a rural area and few point sources in its drainage area. The results of this study were as follows. Changes in water quality during rainfall showed that parameters such as COD, PO₄-P, T-P, NH₄-N concentration increased about two times, on the other hand, NO₂-N, NO₃-N concentration decreased to about two third of the concentrations in drying periods. The regression equations for stream flow versus pollutant loads were obtained as follows: COD : LOG(M)=-4.531+1.396×LOG(Q) r²=0.768 NH4-N : LOG(M)=-3.227+0.948×LOG(Q) r²=0.825 NO2-N : LOG(M)=-5.744+1.216×LOG(Q) r²=0.641 T-P : LOG(M)=-8.303+1.804×LOG(Q) r²=0.811 PO4-P : LOG(M)=-7.726+1.660×LOG(Q) r²=0.820 The rate of pollutant contributions from nonpoint sources was 80.4% for COD, 75.8% for NH₄-N, 53% for NO₂-N, 57.3% for NO₃-N. 85% for T-P, 89% for PO₄-P, and that of phosphorous pollutant was higher than that of inorganic pollutants. The loading rates of nonpoint pollutants were calculated as 3.76kg/ha/d(COD), 0.2kg/ha/day(NH₄-N), 0.076kg/ha/d(T-P), 0.037kg/ha/d(PO₄-P), respectively. Results above mentioned showed that the pollutant contributions from nonpoint sources were not negligible and the control and management of nonpoint source were urgently needed.

비점오염원 취약지역 우선순위를 이용한 관리대상지역 선정방법

송호진,심규성,조윤철 大田大學校 産業技術硏究所 2017 산업기술연구소 論文集 Vol.28 No.2

The aim of this study was to establish an appropriate management plan thorough determination of management areas with prioritization of vulnerable areas by nonopoint source pollution in Daejeon metropolitan city. For that purpose, the discharge loads of nonpoint source pollution according to land use types were evaluated, and load duration curve was used to investigate the characteristics of pollution loading. Also, nonpoint pollution management region was identified by prioritizing vulnerable areas by nonpoint source pollution. Based on investigation of characteristics of nonpoint source pollution in Daejeon metropolitan city, suitable low impact development technologies are suggested for the control of nonpoint source pollution. The results of this study can be used as fundamental data for nonpoint source pollution management in Daejeon metropolitan city. 본 연구에서는 대전광역시를 대상으로 하여 비점오염에 취약지역을 선정하여 비점오염 적정관리방안을 모 색하고자 하였다. 이를 위해 토지이용별 비점오염원 배출량을 산출하였고, 부하지속곡선을 이용하여 오염부하 의 특성을 조사하였다. 또한 비점오염원 취약지역을 선정함으로서 비점오염원 관리지역을 파악하였다. 대전광 역시의 비점오염특성을 조사한 결과를 토대로 비점오염 저감을 위한 적정한 저양향개발(Low Impact Development, LID)기법을 제안하고자 한다. 이러한 연구결과는 대전광역시 비점오염관리를 위한 중요한 기초자 료로 활용될 것으로 기대된다.

내린천수계 비점오염원 오염물질 유출량조사

허인량,박성빈,오흥석,김영진,Huh, In-Ryang,Park, Sung-Bin,Oh, Heung-Seok,Kim, Yeong-Jin 한국환경보건학회 2009 한국환경보건학회지 Vol.35 No.3

This study evaluates the water quality of the river near the alpine farmland in the upper Naerin stream, which is a typical stream of the upper Bukhan River with muddy water generation, by the flow examination, it aims to estimate the characteristics of nonpoint sources flowing out from the investigated area and figure out effective methods to reduce them. According to the result of water quality examination, the average BOD of the area not affected by the cultivated land among the areas of the upper Naerin River was 0.47mg/l, and total phosphorous was 0.007mg/l; thus, it maintained the cleanliness level of Ia. The average BOD of the area with the alpine farmland was 0.52mg/l, which was similar to the one of the non-cultivated land. But total phosphorous concentration was 0.023mg/l, which was more than three times higher than the area belonging to level II due to the effect of fertilizer ingredients discharged from the cultivated land. About the loadings of the investigated area generated from each of the pollution sources, BOD was 878.5kg/day and total phosphorous was 79.7kg/day. Moreover, for the load density, BOD was $2.22kg/day.km^2$ and total phosphorous was shown as $0.20kg/day.km^2$. Regarding the rates generated from nonpoint sources like land among the loadings per pollution sources, BOD was 54%, total nitrogen was 91%, and total phosphorous was 73.4%. Therefore, it was shown that most of the nutrients were produced from the nonpoint sources. The level of BOD runoff loading in the Jaun River area, where nonpoint sources were mainly generated, was 37.1kg/day and total phosphorous was 1.33kg/day. The flow rates to the generated amount were estimated as 10.5% and 4.7% each.

금강유역 비점오염원 장기 모니터링을 통한 토지이용별 EMC 분석

이정호,송양호,김동호,박수영,김지연,박무종 한국방재학회 2013 한국방재학회논문집 Vol.13 No.6

During the dry periods, many types of pollutants are being accumulated on the land surface and the accumulated various pollutantsare inflowing in th the near watershed areas for the rainfall periods. Then, the monitoring study needs to analysis of thepollutant loads and an establishment of a management plan for nonpoint source. The aims of this study are the characterization ofdischarge from nonpoint source, the analysis of the pollutant loads and an establishment of a management plan for nonpointsource of Geum river basin. For this purpose, 7 monitoring points was selected to the investigated. During the period from April,2008 to August, 2013, the water automatic sampler system has been installed in each monitoring points. Event Mean Concentration(EMC) of BOD5, SS was calculated based on the monitoring data of 318 rainfall events at 7 monitoring points. The land useof the studied basins were divided into forested land and grassland. As the results, a significant relationship was observed from thecorrelation between EMCs and rainfall characteristics. The present study is achieved to provide the correlation between rainfallevents and nonpoint source pollutants. And the data which were build up in this study will contribute to establish the managementpolicy for the nonpoint source pollutants. 건기 시 다양한 오염물들은 지표에 축적되며, 축적된 오염물들은 강우 발생 시 유역 수계를 거쳐 유출로 발생하게 된다. 이러한 비점오염물질의 분석 및 이에 대한 관리 계획의 수립을 위해서는 모니터링에 관한 연구가 반드시 필요하다. 본 연구의목적은 금강유역에서의 비점오염원 유출 특성을 분석하고 이에 따른 비점오염원 관리 대책 수립의 기초자료를 제공하는 것에있다. 이를 위하여 본 연구에서는 금강유역의 총 7개 지점을 모니터링 지점으로 선정하였으며, 2008년 4월부터 2013년 8월까지 장기간에 걸치 모니터링 관측을 수행하였다. 총 7개 지점에서 318회의 강우 사상에 따른 BOD5 및 SS의 EMC(EventMean Concentration)를 산정하였다. 이때 조사 대상 유역의 토지이용상태는 산림지역과 초지지역으로 구분되었으며, 모니터링결과 각 비점오염물질별 EMC와 강우특성 간의 상관성이 분석되었다. 본 연구를 통하여 축적된 이상의 데이터는 향후 비점오염원에 관한 관리 정책 수립에 기여할 것으로 판단된다.

내린천수계 비접오염원 오염물질 유출량조사

허인량(In-Ryang Huh),박성빈(Sung-Bin Park),오홍석(Heung-Seok Oh),김영진(Yeong-Jin Kim) 한국환경보건학회 2009 한국환경보건학회지 Vol.35 No.3

This study evaluates the water quality of the river near the aψine farm1and in the upp Naerin strεarn, which is a typical strearn of the upper Bukhan Ríver with muddy water genε:ration, by the flow examination, it aims to estimate the characteristics of nooint sources flowing out from the investigated area and figure out effective methods to reduce them. According to the result of water quity examination, the averagε BOD of the area not affected by the cultivated land among the areas of the upper Naerin Ríver was 0.47 mg/l, and totaI phosphorous was 0.007 mg/l; thus, it maintained the cleanliness level of Ia. 까le average BOD of the area wìth the alpìne farm1and was 0.52 mg/l, which was simìlar to the one of the non-cultivated land. But total phosphorous concentratìon was 0.023 mg/l, which was more than three times higher than the area belongìng to level n due to the effect of fertilizer ìngredients dischargεd from the cultivated land. About the loadings of the investìgated area generated from each of the pollution sources, BOD was 878.5kg/day and totaI phosphorous was 79.7 kg/day. Moreover, for the load density, BOD was 2.22 kg/day.km2 and total phosphorous was shown as 0.20 kg/day.km2• Regarding the rates generated from nonpoint sources Jike land arnong the loadings per p이lution sources, BOD was 54%, totaI nitrogen was 91 %, and totaI phosphorous was 73.4%. Therefore, it was shown that most of the nutrients were produced from the nonpoint sources. The level of BOD runoff loading in the Jaun Ríver area, where nonpoint sources were mainly generated, was 37.1 k밍day and total phosphorous was 1.33kg/day. The flow rates to the generated arnount were estimated as 10.5% and 4.7% each.

연구논문 : 도로 유형별 비점오염원 유출특성 분석

윤영삼 ( Young Sam Yoon ),권헌각 ( Hun Gak Kwon ),이윤정 ( Youn Jung Yi ),유재정 ( Jay Jung Yu ),이춘식 ( Chun Sik Lee ),이재관 ( Jae Kwan Lee ) 한국환경과학회 2010 한국환경과학회지 Vol.19 No.11

Growth in population and urbanization has progressively increased the loading of pollutants from nonpoint sources as well as point sources. Especially in case of road regions such as city trunk road, national road and highway are rainfall and pollutants runoff intensive landuses since they are impervious and emit a lot of pollutants from vehicle activity. This research was conducted to investigate the nonpoint sources concentration and quantifying stormwater pollutants which are contained in rainfall runoff water. Three different monitoring sites in Jinju and Changwon city were equipped with an automatic rainfall gauge and flow meter for measuring rainfall and the volume of rainfall runoff. In the case of average EMC value, city trunk road was shown the highest value in target water quality items like as BOD, COD, SS, TN and TP. Or the amount of runoff loads by water quality items showed the highest value in city trunk road. And runoff load in city trunk road was 43.8 times high value compared to highway by value of city trunk road 356.7 mg/m2, highway 8.150 mg/m2, national road 19.99 mg/m2 in the case of BOD.

ORIGINAL ARTICLE : Quantitative Assessment of Nonpoint Source Load in Nakdong River Basin

( Heon Gak Kwon ),( Jae Woon Lee ),( Youn Jeong Yi ),( Se Uk Cheon ) 한국환경과학회 2014 한국환경과학회지 Vol.23 No.1

This study estimates unit for the nonpoint source(NPS), classified according to the existing Level-1(large scale) land cover map, by monitoring the measurement results from each Level-2(medium scale) land cover map, and verifies the applicability by comparison with previously calculated units using the Level-1 land cover map. The NPS pollutant loading for a basin is evaluated by applying the NPS pollutant unit to Dongcheon basin using the Level-2 land cover map. In addition, the BASINS/HSPF(Better Assessment Science Integrating point & Non-point Sources/ Hydrological Simulation Program-Fortran) model is used to evaluate the reliability of the NPS pollutant loading computation by comparing the loading during precipitation in the Dongcheon basin. The NPS pollutant unit for the Level-2 land cover map is computed based on precipitation measured by the Sangju observatory in the Nakdong River basin. Finally, the feasibility of the NPS pollutant loading computation using a BASINS/HSPF model is evaluated by comparing and analyzing the NPS pollutant loading when estimated unit using the Level-2 land cover map and simulated using the BASINS/HSPF models.

CHARACTERIZATION OF NONPOINT SOURCES FROM URBAN RUNOFF

Park, Jae-Young,Jo, Young-Min,Oh, Jong-Min Korea Water Resources Association 2000 Water engineering research Vol.1 No.1

This work was completed in partial fulfillment of an on-going research ot descover the effective management of urban nonpoint sources. The current data was obtained from the area of Shingal, Kyunni-do. The investigation was are predominant soures of storm-runoff load and drainage. As a result of the investigation, the road was found to be most seriously contaminated and a significant potential source deteriorating the quality of streams and lakes in the vicinity of the town. Thus, in could be concluded that an effective and systematic cleaning technique must be developed as soon as possible and be frequently applied to the road.

새만금 유역 주요 밭작물 작부체계 최적관리기법 시나리오별 농업비점오염원 저감

손재권 ( Jae Gwon Son ),이경애 ( Gyeong Ae Lee ),유동수 ( Dong Su Yoo ),조재영 ( Jaeyoung Cho ) 한국응용생명화학회 2014 Journal of Applied Biological Chemistry (J. Appl. Vol.57 No.1

Nonpoint pollution sources from agricultural activities are a major cause of water quality impairment. A nutrient management program utilizes farm practices that maintain efficient crop production systems and control agricultural nonpoint pollution sources. The objectives of present study were to identify appropriate best management practices (BMPs) according to changes of cropping system of main upland crop for reducing AGNPs loadings and to simulate the effects of the application of the several BMPs scenarios in Saemangeum watershed. The selected BMP scenarios were: 1) to convert naked barley and hulled barley to hairy vetch or chinese milk vetch, 2) to convert red pepper to soybean crop, and 3) to combine two scenarios, converting naked barley and hulled barley to hairy vetch or chinese milk vetch + converting red pepper to soybean crop. As a result of BMPs application, the crop requirement of nitrogen and phosphorus for upland crop reduced nitrogen by 41% and phosphorus by 47% in scenario 1, whereas scenario 2 reduced nitrogen by 30% and phosphorus by 23%. Overall, scenario 3 reduced nitrogen by 72% and phosphorus by 70% in agricultural non-point pollution sources associated with chemical fertilizer and livestock manure in Saemangeum watershed.