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제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Occurrence and Trophic Magnification of PCNs, HBCDs, and DPs in the Ecosystem of King George Island, Maritime Antarctica

2015년 9월 3일 13시 24분 08초
ENVR.P-556 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 15일 (목요일) 11:00~12:30
저자 및
신은수, 장윤석*
포항공과대학교(POSTECH) 환경공학부, Korea
We investigated occurrence and trophic magnification of emerging persistent organic pollutants (POPs), including Polychlorinated naphthalenes (PCNs), Hexabromocyclododecanes (HBCDs), and Dehchlorane plus (DPs) and their related compounds, in the maritime ecosystem in Antarctica. The samples included Antarctic cod, icefish, limpet, amphipods, leopard seal, Gentoo penguin, Chinstrap penguin, kelp gull, and south polar skua. And the samples were collected in Baton peninsular of King George Island, Antarctica, from December 2013 to February 2014. The concentrations in the samples were lower or comparable to those from the aquatic and terrestrial ecosystem in the other regions. To our knowledge, this was the first or second study to report occurrence of the chemicals in the Antarctic biota, providing evidence of long range transport of these chemicals. We also calculated trophic magnification factor (TMF) of each congeners, based on the ratio of stable isotope nitrogen and the log-transformed POP concentrations. Some of the compounds, including HBCDs and PCNs, showed significantly positive correlations, suggesting biomagnification of the chemicals. And the TMF values were varied with different food-web models under consideration of different food web structures and treatment of non-detected data. This study suggested the long range transport and bioaccumulation of the emerging POPs, which are the POPs criteria of Stockholm Convention.