• Title/Summary/Keyword: 오염기여도

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A Study on the Characteristics of Water Quality and Sediments in the Heung-bu Reservior (흥부저수지내 수질 및 퇴적물 특성에 관한 연구)

  • Ahn, Tae-Woong;Choi, I-Song;Oh, Jong-Min
    • Proceedings of the Korea Water Resources Association Conference
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    • 2010.05a
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    • pp.962-965
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    • 2010
  • 우리나라에서는 막대한 양의 농업용수를 확보하기 위하여 많은 노력을 기울여 왔고, 수많은 수리시설을 확충, 유지 관리 하고 있다. 현재 이러한 농업용수의 공급을 위한 시설로는 저수지, 양수장, 배수장, 양 배수장, 보, 집수암거, 관정 등이 있다. 우리나라의 농업용 용수의 급수원으로서 농업용 저수지는 전체의 58.7%를 제공하고 있어 가장 중요한 농업용수 공급원인 것으로 조사되었다. 이와 같이 농업용 저수지가 전체의 수리 시설에서 차지하는 비율이 58.7%로 높은 것은 우리나라의 강우특성 및 하천형상의 특성이 많이 반영된 것으로 그만큼 저수지 설치 여건이 유리할 뿐만 아니라, 풍부하고도 계획적으로 안정된 수량을 확보할 수 있다는 장점을 가진데서 기인한 것으로 판단된다. 그러나 농업용수 확보를 위한 저수지의 신규 건설에는 앞으로 많은 어려움이 예상된다. 그 이유로는 저수지를 경제적으로 건설할 수 있는 적지가 줄어들고 있고, 저수지의 건설에 필요한 과다한 건설비용과 지역주민의 이주 및 생활을 위한 보상비 증가, 수몰지역 주민들의 반대, 저수지 건설로 인하여 발생되는 환경생태계의 파괴문제 등을 들 수 있다. 따라서 앞으로는 현재 확보되어 있는 저수지를 효율적으로 관리할 수 있는 종합적 대책 마련이 필요하며, 저수지 수원의 수질오염으로 인한 수자원의 불필요한 낭비를 최대한 막을 수 있는 관리노력이 보다 필요할 것으로 사료된다. 특히 농업용 저수지는 대부분 하천의 상류부분에 위치하고 있어 하류의 수질오염에 심각한 영향을 미칠 수 있고, 이는 하류에 위치한 상수원 댐이나 하구언 등의 수질오염을 야기할 수 있으므로 국토전체의 문제로 대두될 수 있다. 본 연구에서는 흥부저수지의 수계환경을 개선하기 위한 수질 및 퇴적물 특성을 파악하고, 이에 따른 수질 및 퇴적물 특성을 조사하였다. 또한 정체성 수역인 저수지의 오염기여도 및 오염부하량을 산출하고 수질개선방안을 제시하며, 저수지의 수질이 퇴적물에 미치는 영향을 파악하고, 흥부저수지의 수질 및 퇴적물 개선 방안을 제시하는 것을 목적으로 한다.

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Impact of Atmospheric Dry Deposition of Water Quality of Juam Reservoir (대기건성침적이 주암호 수질에 미치는 영향)

  • 장영환;정장표;조효정;이승훈;이승묵;장남익
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
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    • pp.267-268
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    • 2003
  • 대기중으로 방출된 오염물질은 기상조건에 따라 다른 지역으로 이동하여 침적하는 메커니즘을 가지고 있는데, 이의 규명을 위하여 주암호 유역을 대상으로 건성침강하는 대기오염물질의 양과 이들에 의한 수질의 오염기여도 및 발생원에 대한 추적을 본 연구에서 시도하였다. 전라남도 송광면에 위치하고 있는 주암호는 홍수의 조절 및 억제와 수자원의 안정적인 공급을 위하여, 1984년도에 만들어졌으며, 현재 광주 및 전남의 식수 및 생활용수를 공급하는 중요 상수원일 뿐 만 아니라 광양제철 등의 여천산업단지의 공업용수를 공급하고 있는데 최근 수자원의 고갈이 심각하여 대두되고 있는 현시점에서 주암호에 대한 중요성 및 의존도는 더욱 증대되었다. (중략)

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Estimation of Pollution Contribution TMDL Unit Watershed in Han-River according to hydrological characteristic using Flow Duration Curve (유량지속곡선을 이용한 수문특성별 한강수계 총량관리 단위유역의 오염기여도 추정)

  • Kim, Dong Young;Yoon, Chun Gyeong;Rhee, Han Pil;Choi, Jae Ho;Hwang, Ha Sun
    • Journal of Korean Society on Water Environment
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    • v.35 no.6
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    • pp.497-509
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    • 2019
  • After the Total Maximum Daily Loads(TMDLs) was applied, it became beyond the limit of concentration management. However, it does not adequately reflect the characteristics of various watersheds, and causes problems with local governments because of the standard flow set. Thus, in this study, the Han River system is organized into four groups in estimating the Pollution Contribution by applying the Flow Duration Curve(FDC) created by the daily flow of data from the HSPF. And the method of this study is expected to be valuable as basic data for the TMDLs. As a result, Group I contains the main watersheds with no large hydraulic structures and tributary watersheds. There is no specificity in the FDC and the Pollution Contribution is estimated as rainfall runoff. Group II contains watersheds near the city where the FDC is maintained above a certain level during the Low Flow Conditions and the Pollution Contribution is estimated as the discharge flow of large scale point pollution facilities. Group III contains the main watersheds in which the large hydraulic structures are installed and FDC is curved in the Low Flow Conditions. So the Pollution Contribution is estimated as the water quality of the large hydraulic structures. Group IV contains the upstream in mainstream watersheds in which the large hydraulic structures are installed and the FDC is disabled before the Low Flow Conditions. As the flow is concentrated in the High Flow Conditions, the non-point pollution sources are estimated as the Pollution Contribution.

Characterization and source apportionment by factor analysis of water soluble ions in atmospheric particles in Cheonan, Korea (천안시 대기 입자 중 수용성 이온성분의 계절적 특성 및 요인분석을 통한 오염기여도 평가)

  • Oh, Se-Won
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.2
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    • pp.1020-1026
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    • 2011
  • Seasonal characteristics of water soluble ions in atmospheric particles in Cheonan were studied between 2008 and 2009. $Na^+$, $NH_4^+$ and $NO_3^-$, $SO_4^{2-}$ were the principle cations and anions in both coarse and fine particles. Water soluble ions occupied 24.4%(spring), 33.2%(summer), 40.7%(fall), and 39.6%(winter) of the total mass of coarse particles. In fine particles, 43.0%(spring), 59.7%(summer), 55.4%(fall), and 53.2%(winter) of mass were occupied by water soluble ions. From the factor analysis, 2 and 4 factors were extracted for water soluble ions in coarse and fine particles, respectively. 70.33% of water ions in the coarse particles were estimated from the natural source, but 66.01% in the fine particles were from the anthropogenic source.

Sources Apportionment Estimation of Ambient PM2.5 and Identification of Combustion Sources by Using Concentration Ratios of PAHs (대기 중 PM2.5의 오염기여도 추정 및 PAHs 농도비를 이용한 연소 오염원 확인)

  • Kim, Do-Kyun;Lee, Tae-Jung;Kim, Seong-Cheon;Kim, Dong-Sool
    • Journal of Korean Society for Atmospheric Environment
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    • v.28 no.5
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    • pp.538-555
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    • 2012
  • The purpose of this study was to understand $PM_{2.5}$ chemical characteristics on the Suwon/Yongin area and further to quantitatively estimate $PM_{2.5}$ source contributions. The $PM_{2.5}$ sampling was carried out by a high-volume air sampler at the Kyung Hee University-Global Campus from November, 2010 to October, 2011. The 40 chemical species were then analyzed by using ICP-AES(Ag, Ba, Cr, Cu, Fe, Mn, Ni, Pb, Si, Ti, V and Zn), IC ($Na^+$, $K^+$, $NH_4{^+}$, $Mg^{2+}$, $Ca^{2+}$, $NO_3{^-}$, ${SO_4}^{2-}$ and $Cl^-$), DRI/OGC (OC1, OC2, OC3, OC4, OP, EC1, EC2 and EC3) and GC-FID (acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene, benzo[b]fluoranthene, benzo[a] pyrene, indeno[1,2,3-cd] pyrene, benzo[g,h,i]perylene and dibenzo[a,h,]anthracene). When applying PMF model after performing proper data treatment, a total of 10 sources was identified and their contributions were quantitatively estimated. The average contribution to $PM_{2.5}$ emitted from each source was determined as follows; 26.3% from secondary aerosol source, 15.5% from soil and road dust emission, 15.3% from vehicle emission, 15.3% from illegal biomass burning, 12.2% from incineration, 7.2% from oil combustion source, 4.9% from industrial related source, and finally 3.2% from coal combustion source. In this study we used the ratios of PAHs concentration as markers to double check whether the sources were reasonably classified or not. Finally we provided basic information on the major $PM_{2.5}$ sources in order to improve the air quality in the study area.

Analysis of Influential Factors on Nitrate Distribution in Ground Water in an Urbanizing Area using GIS (도시화 지역에서 GIS를 이용한 지하수 질산성질소 분포 영향요인 분석)

  • Won J.S.;Woo N.C.;Kim Y.J.
    • Economic and Environmental Geology
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    • v.37 no.6 s.169
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    • pp.647-655
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    • 2004
  • To identify the influential factors and their relative significance on spatial distribution of $NO_3-N$ in urban ground water, spatial analysis was conducted using GIS and statistical approaches in the Seongnae-Koduk watersheds, where rapid urbanization has been proceeded. Several factors were considered including land-use type, distance to sewage lines, the ratio of impervious surface, and the ratio of green area. The spatial distribution of $NO_3-N$ in the land-use types shows differences between urban and crop field possibly due to the sewage networks in urban areas and the agrochemical uses in crop field. Nitrate concentrations in ground water were decreased with the distance to sewage lines to approximately 60-75 m. Concentrations of nitrate and distances to sewage lines showed negative correlation, indicating that the nitrate contamination was induced from the sewage system and specially significant in urban areas. The negative correlation of the ratio of impervious surface to the nitrate concentration in urban areas also suggested that the source materials of nitrate are introduced from the surface. Consequently, in areas of urbanization processes, systematic management of past-and-present land-use types and sewage systems are the most significant factors in preventing ground water from nitrate contamination.

Investigation on Posssiblility of Composting by Properties Analysis of Organic Sludge Composts (각종 유기성오니의 성상분석에 의한 퇴비화가능성의 검토)

  • Han, E.J.;Choi, H.G.;Lee, J.A.;Kim, K.Y.;Lee, C.K.;Park, K.H.;Phae, C.G.
    • Journal of the Korea Organic Resources Recycling Association
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    • v.8 no.1
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    • pp.109-120
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    • 2000
  • In the analysis of the common categories, moisture contents and organic concentrations were not much different according to the types of industry or treatment facilities. When heavy metals contribution of the sludge from domestic and industrial wastewater treatment facilities was analyzed, As, Hg and Cr concentrations were relatively high among 42 standards of the fertilizer law. As concentration war higher in 28 of 42 facilities (67%) than limits of the fertilizer law. Hg concentration was not acceptable in the 21 of 42 facilities (50%). Cr concentration was not acceptable in 9 of 42 facilities (21%). From these results, It is found that As is the most frequently detectable component and contaminant than any other heavy metals in sludges. The data from this experiment was also compared with the guidelines of harmful organics and the rest of heavy metals that are regulated by some of the foreign countries. Be, Se and Mo concentrations were lower than the limits. Among the organics, the average concentration of PCB (10 samples) was 26.2 ppb. The highest concentration was 162.6 ppb in the sludge of the municipal wastewater treatment facilities and the lowest concentration was 2.14 ppb from the skin manufacturing industry. From the leaching analysis of re-manufacturing goods from the sludge, most of them was acceptable on the regulation law but Cr concentration was over the limit.

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