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  1. 2 Oceanological Studies

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  1. 2 1996

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  1. 2 Graeve M.

  2. 2 Wodarg D.

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1

Distribution of polychlorinated biphenyls (PCBs) in the pelagial of the Pomeranian Bay

100%
Graeve M., Wodarg D.
Oceanological Studies
|
1996
|
vol. 25
|
issue 4
39-45
EN
Investigations on individual chlorobiphenyls (PCBs) were carried out in the pelagial of the western Pomeranian Bay. An in-situ filtration/extraction system was used to distinguish between the particulate and dissolved chlorobiphenyls. Multidimensional gas chromatography (MDGC) techniques were applied to the separation and identification of individual chloro-biphenyls. The regional distribution of dissolved and particle (SPM) associated individual chloro-biphenyls is presented. The investigations of chlorobiphenyls in different seasons indicate no pronounced seasonal variability in the aqueous phase. However, the concentrations of particu-late chlorobiphenyls did exhibit seasonal maxima depending on plankton productivity.
2

Distribution of herbicides (S-Triazines) in the Pomeranian Bay

100%
Graeve M., Wodarg D.
Oceanological Studies
|
1996
|
vol. 25
|
issue 4
31-38
EN
An investigation of selected triazine herbicides in solution and in suspended particu-late matter (SPM) was carried out in the Pomeranian Bay in 1995. Triazine concentrations were determined by gas chromatography in combination with quadrupole mass spectrometry (GC/MS). Particulate and dissolved material was separated from seawater by means of an in situ filtration/extraction system. The regional distribution of s-triazines in the western Pomeranian Bay in July 1995 is de-scribed. Triazine concentrations in solution displayed pronounced differences between individ-ual components (atrazine: 2-20 ng?dcm-3, simazine: 5-30 ng?dcm-3, terbuthylazine: <5 ng?dcm-3). Triazine concentrations in suspension were very low, often below the detection limit (50 pg?dcm-3).
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