[논문]남동해 연안 퇴적물 내 미량금속 분포 및 생태위해도 평가

황동운; 최민규; 임재현; 이인석; 이가람; 나수진

doi:10.5657/kfas.2023.0438

남동해 연안 퇴적물 내 미량금속 분포 및 생태위해도 평가
Trace Metal Distribution and Ecological Risk Assessment in Marine Sediments from the Southeast Coastal Areas of Korea 원문보기

한국수산과학회지 = Korean journal of fisheries and aquatic sciences, v.56 no.4, 2023년, pp.438 - 448

황동운 (국립수산과학원 연구기획과) , 최민규 (국립수산과학원 기후환경연구부 해양환경연구과) , 임재현 (국립수산과학원 기후환경연구부 해양환경연구과) , 이인석 (국립수산과학원 서해수산연구소 기후환경자원과) , 이가람 (국립수산과학원 기후환경연구부 해양환경연구과) , 나수진 (국립수산과학원 기후환경연구부 해양환경연구과)

Abstract ▼ AI-Helper

The concentrations of trace metals and organic matters in marine sediments collected from southeast Korean coastal areas were investigated. The primary purpose of this study was to evaluate the contamination status, spatial distribution and potential ecological risks associated with the physiochemical composition in the studied areas. We found that the concentrations of trace metals in marine sediments were as follows: Fe > Mn > Zn > Cr > Pb > Cu > As > Cd > Hg. According to the sediment quality guidelines (SQGs) of Korea, concentrations of Zn, Cr, Cu and Cd at all sampling sites were below threshold effect levels (TEL). However, concentrations of As, Hg, and Pb (i.e., at the 94-98% of sampling sites), were below the TEL. In addition, concentration factors (CF) in the surveyed area were found to be associated with low ecological risks, whereas As, Hg, and Cu showed moderate to high risk levels in some inner parts of the studied bays. Finally, the pollution load index (PLI) and ecological risk index (ERI) of the elucidated metals were linked to moderate ecological risk, pointing to the possibility of being deleterious to some benthic organisms.

주제어

표/그림 (9)

그림 Fig. 1. Sampling location in the Southeast coastal area of Korea.
표 Table 1. Recovery of certified reference materials (PACS-2 and MESS-3; marine sediments) in this study
그림 Fig. 2. Mean grain size (A) and sedimentary type (B) in marine sediments from the Southeast coastal area of Korea. Korea (Abbreviation: C-Clay, sC-sandy clay, M-mud, gM-gravelly mud, sM-sandy mud, (g)sM- slightly gravelly sandy mud).
표 Table 2. Summary of grain size (Mz), contents of organic matters and trace metal concentrations in marine sediments from the Southeast coastal areas of Korea
표 Table 2. Continued
그림 Fig. 3. Cumulative distribution of trace metals (Zn, Cr, Pb, Cu, AS, Cd, and Hg) in this study, in comparison with sediment quality guidelines, TEL (threshold effects level) recommended by Ministry of Oceans and Fisheries in Korea.
그림 Fig. 4. Spatial distributions of trace metal (As, Cd, Cr, Cu, Fe, Hg, Mn, Pb, and Zn) concentration in marine sediments from the Southeast coastal area of Korea.
그림 Fig. 5. Percentage of samples according to CF (concentration factor) values for trace metals (As, Cd, Cr, Cu, Hg, Pb, and Zn). Each class in legend is defined as CF<1 (low degree) for Class 0, 1≤CF<3 (moderate degree) for Class 1, 3≤CF<6 (considerable degree) for Class 2, CF≥6 (very high degree) for Class 3.
그림 Fig. 6. Spatial distributions of (A) PLI (pollution load index) and (B) ERI (ecological risk index) in marine sediments from the Southeast coastal area of Korea.

AI 본문요약
AI-Helper

문제 정의

본 연구에서는 수산학적으로 매우 중요한 해역인 남해 강진만에서부터 거제-한산만에 이르는 남동해 연안 퇴적물의 미량금속 농도 분포특성, 오염, 생태위해도 평가 등을 실시하여 이들 해역에서 인위적 활동에 따른 환경오염 상태를 진단하고자 하였다. 이를 위하여 2016년 2월에 연구해역 내 연안 퇴적물(47개 조사정점)에 대해서 미량금속 10종[비소(As), 카드뮴(Cd), 크롬(Cr), 구리(Cu), 철(Fe), 수은(Hg), 리튬(Li), 망간(Mn), 납(Pb), 아연(Zn)]과 함께 입도(grain size), 유기물 오염지표[강열감량(ignition low, IL)], 화학적산소요구량(chemical oxygen demand, COD), 산휘발성황화물(acid volatile sulfide, AVS)]을 조사·분석하였다.

제안 방법

이를 위하여 2016년 2월에 연구해역 내 연안 퇴적물(47개 조사정점)에 대해서 미량금속 10종[비소(As), 카드뮴(Cd), 크롬(Cr), 구리(Cu), 철(Fe), 수은(Hg), 리튬(Li), 망간(Mn), 납(Pb), 아연(Zn)]과 함께 입도(grain size), 유기물 오염지표[강열감량(ignition low, IL)], 화학적산소요구량(chemical oxygen demand, COD), 산휘발성황화물(acid volatile sulfide, AVS)]을 조사·분석하였다.

성능/효과

남동해 연안 퇴적물 오염도 평가를 위해 미량금속의 SQGs 비교와 오염지수(PLI, ERI)의 결과를 종합하면, 남동해 연안 퇴적물에서 미량금속은 연안 배경농도보다 약간 높은 수준이었지만, 전반적으로 낮은 오염도를 보였다. 오염분포 특성은 외해에서 반폐쇄적인 만 내만으로 갈수록 미량금속과 유기물 함량은 증가하는 패턴을 보였고, 다만 내만 일부 정점에서 높은 오염 수준을 보였다.
남동해 연안 퇴적물 오염도 평가를 위해 미량금속의 SQGs 비교와 오염지수(PLI, ERI)의 결과를 종합하면, 남동해 연안 퇴적물에서 미량금속은 연안 배경농도보다 약간 높은 수준이었지만, 전반적으로 낮은 오염도를 보였다. 오염분포 특성은 외해에서 반폐쇄적인 만 내만으로 갈수록 미량금속과 유기물 함량은 증가하는 패턴을 보였고, 다만 내만 일부 정점에서 높은 오염 수준을 보였다. 통영연안의 북신만 내측(TY1, TY2)은 저서생물에 매우 심한 위해성을 줄 수 있는 수준까지 오염되었으며, 이것은 인위적인 배출원과 미약한 조류소통에 의해 상당량의 유기물뿐만 아니라 미량금속(As, Hg, Cu)이 축적되었기 때문으로 판단되었다.

후속연구

통영연안의 북신만 내측(TY1, TY2)은 저서생물에 매우 심한 위해성을 줄 수 있는 수준까지 오염되었으며, 이것은 인위적인 배출원과 미약한 조류소통에 의해 상당량의 유기물뿐만 아니라 미량금속(As, Hg, Cu)이 축적되었기 때문으로 판단되었다. 따라서 앞으로 남동해 연안 퇴적물에서 오염된 해역과 비오염된 해역으로 구분하여 저서환경 보전 및 개선을 위한 차별화된 정책이 요구된다.

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표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

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저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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