Polychlorinated organic compounds in the Arctic cod liver: trends and profiles
Identifieur interne : 000C47 ( Main/Exploration ); précédent : 000C46; suivant : 000C48Polychlorinated organic compounds in the Arctic cod liver: trends and profiles
Auteurs : Seija Sinkkonen [Finlande] ; Jaakko Paasivirta [Finlande]Source :
- Chemosphere [ 0045-6535 ] ; 1999.
Abstract
Polychlorinated organic compounds (POCs) have been measured in Arctic cod liver from Vestertana Fjord for a period of 1987–1998. Significant decrease was observed for DDD (p=0.043), α-HCH (p=0.001), and γ-HCH (lindane; p=0.001). Contents of DDE, 2,3,7,8-tetrachlorodibenzofuran, PCBs, chlordanes, chloronaphthalenes, hexachlorobenzene and polychlorodiphenyl ethers had no significant trend. Contents of three hexa- and two heptachlorodibenzofurans and octachlorodibenzofuran increased slightly from 1987 to 1994, but then at very high rate from 1994 to 1998. Trends of HCHs, profiles of PCBs and levels of chlordanes are in accordance with atmospheric long range transport. The hexa-, hepta- and octachlorodibenzofurans observed are major impurities in chlorophenol formulation Ky-5, which has been used as wood preservative and as fungicide/slimicide in industrial processes. Their profile in Vestertana cod was similar to that observed in Ky-5 contaminated fish.
Url:
DOI: 10.1016/S0045-6535(99)00309-4
Affiliations:
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<front><div type="abstract" xml:lang="en">Polychlorinated organic compounds (POCs) have been measured in Arctic cod liver from Vestertana Fjord for a period of 1987–1998. Significant decrease was observed for DDD (p=0.043), α-HCH (p=0.001), and γ-HCH (lindane; p=0.001). Contents of DDE, 2,3,7,8-tetrachlorodibenzofuran, PCBs, chlordanes, chloronaphthalenes, hexachlorobenzene and polychlorodiphenyl ethers had no significant trend. Contents of three hexa- and two heptachlorodibenzofurans and octachlorodibenzofuran increased slightly from 1987 to 1994, but then at very high rate from 1994 to 1998. Trends of HCHs, profiles of PCBs and levels of chlordanes are in accordance with atmospheric long range transport. The hexa-, hepta- and octachlorodibenzofurans observed are major impurities in chlorophenol formulation Ky-5, which has been used as wood preservative and as fungicide/slimicide in industrial processes. Their profile in Vestertana cod was similar to that observed in Ky-5 contaminated fish.</div>
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