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통합 환경 관리를 위한 수질 환경의 질 목표 수준 설정 방법에 관한 연구
황현정,간종범,서지혜,이선경,김영란,Hwang, Hyeon-Jeong,Khan, Jong-Beom,Seo, Ji Hye,Lee, Sunkyung,Kim, Young-Lan 대한상하수도학회 2021 상하수도학회지 Vol.35 No.3
When evaluating the extent of the impact of water pollutants on the surrounding area, we would like to present the target level (proposal) of the quality of the environment, which is the standard for evaluation. We propose the environmental quality target level for substances that need to be applied domestically by investigating overseas cases operating the integrated environmental management system and the implications of domestic environmental pollutant management. The appropriateness of the environmental quality target level reviewed in this study was determined using data from the water quality measuring network, and future improvement measures were proposed. We review the available methodologies for setting quality objectives for the environment. It proposed the environmental quality target level for 21 substances that have domestic water pollutant emission standards and do not have environmental standards, and proposed future improvement measures. If it is necessary to add quality target-level items of the environment in the future, it is believed that expansion will be possible based on the methodology presented in this study.
대청호에서 Geosmin, 2-MIB의 시간적·공간적 분포 특성
김교영 ( Kyo Young Kim ),간종범 ( Jong Beom Khan ),최인찬 ( In Chan Choi ),홍선화 ( Seoun Hwa Hong ),이준배 ( Jun Bae Lee ),이수형 ( Soo Hyung Lee ),이재정 ( Jay Jung Lee ) 한국환경농학회 2015 한국환경농학회지 Vol.34 No.1
BACKGROUND: Contamination of source water by odorous compounds are one of the problems related to the water quality management, especially in Korea where surface water is used as drinking water. Geosmin (1, 10-trans-dimethyl-trans-9-decalol) and 2-MIB (2-methyl isoborneol : 1,2,7,7-tetramethyl-exo-bicycloheptan-2-ol) are commonly recognized earthy-musty odor compounds produced by algae causing serious problems to the drinking water purification facilities. METHODS AND RESULTS: In this study, spatial and temporal distribution of the odor compounds, geosmin and 2-MIB were investigated along with the development of phytoplankton in the Daechung reservoir from July 2012 to October 2013. CONCLUSION: Concentrations and frequencys of detection of both compounds increased from April to October which were related to cyanobacterial bloom periods. However, concentrations of odor compounds were not related to the number of cyanobacteria. Concentrations of both cyanobacteria and geosmin showed similar trends with depth. Pearson correlation analyses showed that geosmin concentration exhibited significant correlation with the count of Anabaena macrospora and Aphanizomenon flos-aquae. On the other hand, 2-MIB concentration showed a significant correlation with the count of Anabaena smithii.
대청호와 금강유역 중 살충제, 과불화합물, 브롬화난연제의 모니터링
이혜리(Hyeri Lee),간종범(Jong Beom Khan),이보미(Bo-Mi Lee),김소희(Sohui Kim),이준배(Junbae Lee),천세억(Se Uk Cheon) 한국농약과학회 2017 농약과학회지 Vol.21 No.2
A multiresidue analytical method using LC-MS/MS was developed for insecticides perfluorinated compounds (PFCs), and brominated flame retardants (BFRs) in water samples with the simultaneous SPE method. The ranges of recoveries were 95.0~117.2% (Insecticides), 19.7~135.0% (PFCs), and 72.5~86.4%(BFRs) with coefficients of variation of less than 15%. Method detection limit (MDLs) of insecticides, PFCs, and BFRs were 3.0~3.7 ng/L, 0.3~7.1 ng/L, and 5.1~11.7 ng/L, respectively while limit of quantifications (LOQs) were 9.0~11.0 ng/L (insecticides), 0.9~21.4 ng/L (PFCs), and 15.4~35.0 ng/L (BFRs). For understanding the background levels of insecticides, PFCs, and BFRs in the river water, those compounds were monitored in Geum river main stream, So-ok stream, and Daechung Lake sites (Chu-dong, Mun-ui, and Dam) every month (March to December) utilizing the developed method. The compounds of the highest detection frequency were PFOA, PFHxA, PFHpA and dinotefuran (insecticide), whereas BFRs were detected only in March and December (So-ok and Dam). In conclusion, the trends were not observed on periodical and spatial characteristics and the background levels were secured for insecticides, PFCs, and BFRs in Geum river basin.