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National Comments regarding the Norwegian data for 2004. Joint Assessment and Monitoring Programme (JAMP)

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Filplassering/publikasjoner/2214/ta2214.pdf
Størrelse8994 kilobyte
Utgave2007
Volum944/05
SerietittelStatlig program for fourensningsovervåking
BeskrivelseThis report is part of the Norwegian contribution to the SIME 2007 meeting administrated by OSPAR. JAMP 2005included the monitoring of contaminants in blue mussel (61), dogwhelk (8), cod (9) and flatfish (12) along thecoast of Norway from Oslo to Bergen, Lofoten and Varangerfjord. The results indicated elevated levels ofcontaminants, i.e., poorer than Class I in SFT's classification system, in the inner Oslofjord (PCBs, mercury andlead in cod; PCBs in blue mussel), and Sørfjord and Hardangerfjord (cadmium, lead, mercury and DDT in bluemussel, and mercury in cod). The results from the remaining stations showed low or moderate levels ofcontamination in 2005. Considering the whole monitoring period, significant upward trends were found formercury in cod from the inner Oslofjord and a downward trend was found for lead in blue mussel fromSørfjord/Hardangerfjord. The “Pollution" index was between “marked” and “severe,” as it was in 2004. The“Reference” index was between “slight” and “moderate” as before. Contamination of organotin in blue mussel andimposex in dogwhelk were still apparent, however, there is some indication of downward trends. The results fromstudies using biological effects methods in cod are discussed.
KommentarOppdragsgiver:Statens forurensningstilsyn.NIVA rapport nr. 5315-2006
Forfatter(e)Ruus, Anders; Bakketun, Åse; Green, Norman W.
DatoOslo : 2007-01-19
Språkengelsk
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