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전상백 ( Sang Back Jeon ),김평중 ( Pyoung Joong Kim ),김상수 ( Sang Su Kim ),주재식 ( Jae Sik Ju ),이용화 ( Young Hwa Lee ),장대수 ( Dae Soo Chang ),이정의 ( Jung Uie Lee ),박승윤 ( Seoung Yun Park ) 한국환경분석학회 2012 환경분석과 독성보건 Vol.15 No.3
We measured various geochemical parameters including texture, chemical oxygen demand (COD), ignition loss (IL), acid volatile sulfide (AVS), nonmetallics, alkali metals, alkaline earth metals, transition elements and heavy metals in order to determine the characteristics of spatial distribution in the surface sediments collected from 19 stations in the Deukryang Bay. It was observed that chemical oxygen demand (COD) and acid volatile sulfide in most stations were below the criteria proposed by Japan Fisheries Resource Conservation Association (JFRCA) to evaluate the pollution status of marine sediment. The pollution level was estimated by Enrichment factor (Ef) and Index of geoaccumulation (Igeo). For elements, the Enrichment factors (Ef) were smaller than 1 except for arsenic (As) which had highest Ef value of 1.72 and the Index of geoaccumulation (Igeo) for nonmetallic and metallic elements ranged between 1 and 2, indicating that the pollution levels by these elements were not serious. However, for the sustainability of the Deukryang Bay, continous monitoring should be necessary for with these harmful elements.
전남 남부 반폐쇄적인 내만 갯벌 퇴적물의 지화학적 특성
황동운 ( Dong Woon Hwang ),김평중 ( Pyoung Joong Kim ),전상백 ( Sang Back Jeon ),고병설 ( Byoung Seol Koh ) 한국수산과학회 2013 한국수산과학회지 Vol.46 No.5
To understand the geochemical characteristics of intertidal sediment in a semi-enclosed bay, we measured various geochemical parameters, including grain size, ignition loss (IL), chemical oxygen demand (COD), acid volatile sulfide (AVS), and trace metals (Al, Fe, Cu, Pb, Zn, Cd, Hg, and As), in intertidal sediment from three bays (Deukryang Bay,Yeoja Bay, and Gamak Bay) in the southern region of Jeollanam Province. The intertidal sediment in Deukryang Bay consisted of various sedimentary types, such as sand, gravelly muddy sand, mud, and silt, whereas the intertidal sediments in Yeoja and Gamak Bays were composed mainly of mud. The concentrations of IL, COD, AVS and trace metals in the intertidal sediments of the three study regions were relatively high near areas affected by input of stream waters and/or shellfish farming waste. The concentrations of organic matter and trace metals in Gamak Bay were much higher than those in Deukryang and Yeoja Bays, which appears to be due to the influence of anthropogenic pollutants, originating from the city and the industrial complex near Gamak Bay. The evaluation results of organic matter and metal pollution using the sediment quality guidelines showed that the intertidal sediments in the three study regions were not polluted in terms of organic matter and trace metals. In future, sustainable management for sources of organic matter and trace metal is necessary to conserve a healthy benthic ecosystem in intertidal sediments.