낙동강에서 유기오염 및 SS 농도 변화에 따른 DOC 농도 변화의 특성 = Characteristics of Changes in DOC Concentration according to Concentrations of Organic Matter and Suspended Solids in the Nakdong River

다국어 초록 (Multilingual Abstract)

Temporal increase of SS induces concentrations in various forms of organic matter including BOD, COD, TOC. Consequently, it causes hard to identify sources of water pollution during or after precipitation. The objective of this study is to investigate variations of DOC concentration caused by increase of flow and changes of external factors in river by comparing to SS concentration. In results, monitoring sites (e.g., Banbyeonchen) consisting of hard riverbed showed high correlation between SS and organic matters, except BOD. On the contrary, other sites (e.g., Naesungcheon) where riverbed consists of sand were found in a wide range of annual fluctuation in SS level, whereas these sites showed a narrow range in annual DOC fluctuation. In Gumhogang and Namgang, a lower correlation between SS and other factors was found most likely because of high concentration in organic matter. However, lower annual fluctuation values of DOC were observed in comparison to those of COD and TOC. Similar results were also confirmed in main river sites, Sangju and Mulgeum. In conclusion, DOC concentration is better indicator for monitoring organic matter which cannot be provided by BOD, COD, TOC in the Nakdong river basin.

참고문헌 (Reference)

1 김재구, "한강수계 주요하천과 호수내 TOC와 DOC분포 및 BOD와 COD의 산화율 비교" 한국물환경학회 23 (23): 72-80, 2007

2 박혜경, "소양호에서 외부기원유기물의 유입, 유출 특성" 한국물환경학회 27 (27): 88-97, 2011

3 김기용, "북한강수계 호수의 POC와 DOC 분포와 조류밀도의 관계" 한국물환경학회 25 (25): 840-848, 2009

4 류재홍, "미호천의 물 환경 탐구 - TOC를 중심으로 한 수질모니터링 -" 한국물환경학회 23 (23): 731-739, 2007

5 이순화, "낙동강 하천수중 용존유기물질의 특성" 대한환경공학회 25 (25): 7-708, 2003

6 권영수, "금호강 수계에서 생물학적 하천 건강도 및 이화학적 특성" 한국하천호수학회 39 (39): 145-156, 2006

7 Fry, B., "δ13C Measurements As Indicators of Carbon Flow in Marine and Freshwater Ecosystems, Stable isotopes in ecological research" 68 : 196-229, 1989

8 Kim, B. C., "The distribution and characteristic descomposition of DOC in Lake Soyang" Korean Society on Water Environment 23 (23): 49-52, 1997

9 Park, H. G., "The Study of Pollution Loading State and Water Improvement on the Nam-River Watershed in JinJu City for Water Pollution Load Management System" Korean Society on Water Environment and Korean Society of Water and Wastewater 529-530, 2011

10 National Institute of Environmental Research(NIER), "Study on the Water Quality Standard and Criteria for the Policy-maker" Ministry of Environment 5-14, 2000

11 Bae, Z. U., "Study on the Long-Term Change of Water Quality of the Kumho River" 4 (4): 207-220, 1995

12 Meili, M., "Sources, Concentrations and Characteristics of Organic Matter in Softwater Lakes and Streams of the Swedish Forest Region" 229 : 23-41, 1992

13 National Institute of Environmental Research(NIER), "Result on target water quality monitoring network operation of Nak-dong River System in 2008" Ministry of Environment 5-14, 2008

14 Thurman, E. M., "Organic Geochemistry of Natural Water" Dordrecht 1985

15 Ministry of Environment(MOE), "Official Test Methods of Water Quality"

16 Owes, N. J. R., "Natural Variation in 15N in the Marine Environment" 24 : 390-451, 1987

17 National Institute of Environmental Research(NIER), "Flow Measurement Project Final Report of Nak-dong River System in 2011" Ministry of Environment 98-414, 2011

18 Choi, K. S., "Dynamics of Dissolved Organic Carbon in a Deep Reservoir, lake Soyang" Kangwon National University 2000

19 Salonen, K., "Dissolved Organic Matter in Lacustrine Ecosystems: Energy-source and System Regulator" 229 : 1-291, 1992

20 Kim, B. C., "Comparison of BOD, COD and TOC as the Indicator of Organic Matter Pollution in Streams and Reservoirs of Korea" 29 (29): 640-643, 2007

21 National Institute of Environmental Research(NIER), "Comparative Study on COD Criteria and Examination Methods for the Water and Wastewater" Ministry of Environment 99-102, 2001

22 Nemeth, A., "Carbon Transport in the Orinoco River: Preliminary Results" 52 : 357-364, 1982

23 McKnight, D. M., "Aquatic Fulvic Acids in algal Rich Antarctic Ponds" 39 (39): 1972-1979, 1994

24 Leenheer, J. A., "Analytical Method for Dissolved Organic Carbon Fractionation" 1979

25 Hutchinson, G. E., "A Treaqtise on Limnology. Vol. 1: Geography, Physic and Chemistry" Wiley & Son 1015-, 1957

26 Ryu, D. K., "A Study on the Water Quality Indicators of Total Maxiumum Daily Load Management in Nakdong Riverg" Korean Society on Water Environment and Korean Society of Water and Wastewater 23 (23): 1182-1188, 2006

27 Ha, S. R., "A Study on the Characteristics with Storm Density flows in a Stratified Dam Reservoir" Korean Society on Water Environment and Korean Society of Water and Wastewater 95-96, 2009

28 Ministry of Environment(MOE), "2012 WHITE PAPER OF ENVIRONMENT" Ministry of Environment 55-59, 2012