id:"swepub:oai:gup.ub.gu.se/57015"
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03204naa a2200481 4500 | |
| 001 | oai:gup.ub.gu.se/57015 | |
| 003 | SwePub | |
| 008 | 240528s2005 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://gup.ub.gu.se/publication/570152 URI |
| 024 | 7 | a https://doi.org/10.1016/j.marchem.2004.07.0092 DOI |
| 040 | a (SwePub)gu | |
| 041 | a eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Tanhua, Toste,d 1965u Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry4 aut |
| 245 | 1 0 | a Removal and bioaccumulation of anthropogenic, halogenated transient tracers in an anoxic fjord |
| 264 | 1 | b Elsevier BV,c 2005 |
| 520 | a The persistence of the anthropogenic halogenated tracers, CFC-11 (CCl3F), CFC-12 (CCl2F2), CFC-113 (CCl2FCClF2), carbon tetrachloride (CCl4) and methyl chloroform (CH3CCl3) in oxygen-depleted waters was investigated in the anoxic fjord Framvaren in southern Norway. A model for the ventilation of the water in the fjord was created based on tritium and CFC-12 profiles. The results suggest that CFC-12 is stable in this environment, although still affected by particulate scavenging, while the other four halocarbon species shows signs of significant removal in the oxic/anoxic interface. The first-order removal coefficients were calculated to be 0.35, 0.19, 1.23 and 0.31 year(-1) for CFC-11, CFC-113, CCl4 and CH3CCl3, respectively. Significant downward flux of halogenated tracers by sinking organic matter is suggested by the model; the tracers are subsequently released to the water column by the remineralisation of the particles. This process acts as a sink of halogenated tracers in the surface waters, whereas it is a source for the deep waters. Our results points to bioaccumulation factors (BF) for the CFC tracers in the order of 4.4-5.4 (log BF), which is 100-600 times those previously reported. This might be of significance to near-shore, semi-enclosed, basins with a high flux of organic matter, but would still have little importance in open ocean basins. (c) 2004 Elsevier B.V. All rights reserved. | |
| 650 | 7 | a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng |
| 653 | a anoxic basins | |
| 653 | a bioaccumulation | |
| 653 | a biodegradation | |
| 653 | a halocarbons | |
| 653 | a tracers | |
| 653 | a Norway | |
| 653 | a Framvaren | |
| 653 | a DEEP-WATER FORMATION | |
| 653 | a CARBON-TETRACHLORIDE | |
| 653 | a PARTITION-COEFFICIENT | |
| 653 | a ORGANIC-CHEMICALS | |
| 653 | a WEDDELL SEA | |
| 653 | a BLACK-SEA | |
| 653 | a FRAMVAREN | |
| 653 | a ATLANTIC | |
| 653 | a CFC-11 | |
| 653 | a CHLOROFLUOROCARBONS | |
| 700 | 1 | a Olsson, Anders,d 1970u Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry4 aut0 (Swepub:gu)xoandq |
| 710 | 2 | a Göteborgs universitetb Institutionen för kemi4 org |
| 773 | 0 | t Marine Chemistryd : Elsevier BVg 94:1-4, s. 27-41q 94:1-4<27-41x 0304-4203 |
| 856 | 4 8 | u https://gup.ub.gu.se/publication/57015 |
| 856 | 4 8 | u https://doi.org/10.1016/j.marchem.2004.07.009 |
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