한국 연안어장 해수, 퇴적물, 수산생물 내 미량금속 분포 및 축적 특성
Trace Metal Distributions and Accumulations in Seawater, Marine Sediments and Organisms from Coastal Aquaculture Areas of Korea
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
This study comprehensively assessed the distribution, contamination status, and ecological risks of trace metals in seawater, sediments, and marine organisms from Korean coastal aquaculture areas. Trace metal concentrations in sediments followed the order Zn>Cr>Pb>Cu>As>Cd>Hg, with relatively higher levels of Zn, Cu, and Cd on the southeastern coast and Pb, As, and Hg on the mid-eastern coast. The pollution load index (PLI) and ecological risk indices (ERI) exhibited high values at some stations along the southeastern and mid-eastern coasts. Compared with the domestic sediment quality guidelines (TEL), 95–100% of the samples satisfied the criteria for individual metals. Trace metal concentrations in seawater satisfied all national ecological protection standards. In marine organisms, Zn, Cu, and As are predominant and species-specific bioaccumulation patterns have been observed. The bioconcentration (BCF) and biosediment accumulation factors (BSAF) revealed high accumulation tendencies for Zn, Cd, and Cu. Notably, some species showed substantial Cd and Zn bioaccumulation.
Abstract
This study comprehensively assessed the distribution, contamination status, and ecological risks of trace metals in seawater, sediments, and marine organisms from Korean coastal aquaculture areas. Trace metal concentrations in sediments followed the order Zn>Cr>Pb>Cu>As>Cd>Hg, with relatively higher levels of Zn, Cu, and Cd on the southeastern coast and Pb, As, and Hg on the mid-eastern coast. The pollution load index (PLI) and ecological risk indices (ERI) exhibited high values at some stations along the southeastern and mid-eastern coasts. Compared with the domestic sediment quality guidelines (TEL), 95–100% of the samples satisfied the criteria for individual metals. Trace metal concentrations in seawater satisfied all national ecological protection standards. In marine organisms, Zn, Cu, and As are predominant and species-specific bioaccumulation patterns have been observed. The bioconcentration (BCF) and biosediment accumulation factors (BSAF) revealed high accumulation tendencies for Zn, Cd, and Cu. Notably, some species showed substantial Cd and Zn bioaccumulation.