Temporal and spatial trends of PCBs, DDTs, HCHs, and HCB in Swedish marine biota 1969–2012.

Nyberg, E.; Faxneld, S.; Danielsson, S.; Eriksson, U.; Miller, A.; Bignert, A.
2015 | Ambio | 44 (484-497)

In the 1960s, the Baltic Sea was severely polluted by organic contaminants such as PCBs, HCHs, HCB, and DDTs. Elevated concentrations caused severe adverse effects in Baltic biota. Since then, these substances have been monitored temporally and spatially in Baltic biota, primarily in herring (Clupea harengus) and in guillemot (Uria aalge) egg, but also in cod (Gadus morhua), perch (Perca fluviatilis), eelpout (Zoarces viviparous), and blue mussel (Mytilus edulis). These chemicals were banned in Sweden in the late 1970s/early 1980s. Since the start of monitoring, overall significant decreases of about 70–90 % have been observed. However, concentrations are still higher in the Baltic Sea than in, for example, the North Sea. CB-118 and DDE exceed the suggested target concentrations (24 µg kg−1 lipid weight and 5 µg kg−1 wet weight, respectively) at certain sites in some of the monitored species, showing that concentrations may still be too high to protect the most sensitive organisms.

The National Swedish Contaminant Monitoring Programme for Freshwater Biota, 2014

Nyberg, E.; Faxneld, S.; Danielsson, S.; Fång, J.; Vasileiou, M; Bignert, A.; Eriksson, U.; Egebäck, A-L.; Holm, K.; Sundbom, M.; Berger, U.; Haglund, P.
2014 | Sakrapport, Naturhistoriska Riksmuseet, Stockholm | Report No: Report nr 11:2014

The report summarises the monitoring activities within the National Swedish Contaminant Programme for freshwater biota. Each monitored contaminant has been examined in pike, perch and Arctic char from 32 lakes from the north to the south in Sweden.
No general trend could be seen for mercury, and all samples, except Arctic char from Abiskojaure, were above the EU target level. Lead was generally decreasing. Nickel showed a general upward trend in perch. An increase, or indication of an increase, was seen for chromium during the last ten years. Zinc concentrations were decreasing in a majority of the perch samples and in pike from Lake Storvindeln. No general trend was observed for copper, arsenic, silver, aluminum, tin, bismuth, and cadmium. But 30% of the perch samples were above the target level for cadmium.
In general, downward trends were seen for; PCBs, HCHs, DDT, DDE and PCDD/Fs in all species (with a few exceptions). The chlorinated compounds generally show a somewhat higher concentration in the southern parts of Sweden. Most chlorinated compounds were below the suggested target levels.
No general trend was seen during the monitoring period for PBDEs. Concentrations of PBDEs in Lake Bolmen increased from the 60s and peaked in the late 80s to mid-90s and have subsequently decreased. The concentration of HBCDD was under LOQ in a majority of the samples.
A majority of the perfluorinated compounds showed an increase in concentration in perch, except PFOS and FOSA. Higher concentrations of perfluorinated compounds can in general be seen in the southern part of Sweden.

Spatio-temporal trends of PCBs in the Swedish freshwater environment 1981-2012.

Nyberg, E.; Danielsson, S.; Eriksson, U.; Faxneld, S.; Miller, A.; Bignert, A.
2014 | Ambio | 43 (S45-S57)

Polychlorinated biphenyls (PCBs) have been monitored in perch (Perca fluviatilis), pike (Esox lucius), and Arctic char (Salvelinus alpinus) in reference lakes since the late 1960s. Temporal trends and spatial patterns are currently monitored in nine and 32 lakes, respectively. Overall, PCB concentrations are decreasing. However, this is not consistent for all congeners across all lakes and species. Perch has comparatively low PCB concentrations relative to suggested target levels, but individual congener concentrations in some lakes are concerningly high. No temporal trend is seen for CB-118 and CB-153 in perch, but significant decreasing trends exist for Arctic char and pike, for which monitoring started earlier than for perch. The lower/higher chlorinated congener ratio decreased over time in most lakes, indicating fewer new emissions. CB-118 and CB-153 concentrations in perch show spatial gradients across Sweden, with higher concentrations found near urban/industrial areas.

The National Swedish Contaminant Monitoring Programme for Freshwater Biota, 2013

Nyberg, E.; Faxneld, S.; Danielsson, S.; Bignert, A.; Eriksson, U.; Egebäck, A-L.; Holm, K.; Sundbom, M.; Berger, U.; Haglund, P.
2013 | Sakrapport, Naturhistoriska Riksmuseet, Stockholm (1) | Report No: 6:2013

Comparison of organohalogen compounds in white-tailed sea eagle egg laid in1941 with five eggs from 1996 to 2001.

Nordlöf, U.; Helander, B.; Eriksson, U.; Zebühr, Y.; Asplund, L.
2012 | Chemosphere | 88 (3) (286-291)

Improved reproductive success in otters (Lutra lutra), grey seals, (Halichoerus grypus) and sea eagles (Haliaeetus albicilla) from Sweden in relation to concentrations of organochlorine contaminants.

Roos, A.; Bäckelin, B-M.; Helander, B.; Rigét, F.; Eriksson, U.
2012 | Environ. Pollut. | 170 (268-275)

The role of dieldrin, mercury and PCB in population changes in the otters(lutra lutra) in Sweden during late 1960s-2010.

Roos, A.; Eriksson, U.
2012 | Organohalogen Compd.

Dioxin’12 | Cairns, Australia

A harmonized European framework for method vailidation to support research on emerging pollutants.

Schweswig, D.; Borchers, U.; Chancerelle, L.; Dulio, V.; Eriksson, U.; Farré, M.; Goksoyr, A.; Lamoree, M.; Leonards, P.; Lepom, P.; Leverett. D.; O´Neill, A.; Robinson, R.; Silharova, K.; Slobodnik, J.; Tolgyessy, P.; Tutundjian, R.; Wegener, J-W.; Westwood, D.
2011 | Trends Analyt Chem | 30 (1233-1242)

Temporal trends and patterns of PCBs in the Swedish marine and freshwater environment.

Nyberg, E.; Danielsson, S.; Eriksson, U.; , Bignert, A.
2011 | Organohalogen Compd.

Dioxin'11 | Brussels, Belgium

Spatial and temporal trends and patterns of PBDE:s and HBCDD in fish from Swedish fresh water and marine environment.

Danielsson, S.; Johansson, A-K.; Nyberg, E.; Asplund, L.; Nylund, K.; Eriksson, U.; Bignert, A.
2011 | Organohalogen Compd.

Dioxin'11 | Brussels, Belgium

OH-PBDEs and MeO-PBDEs in Swedish marine and fresh water environment – an overview

Asplund, L.; Löfstrand, K.; Malmvärn, A.; Nylund, K.; Eriksson, U.; Bergman, Å.
2010 | Organohalogen Compd. | 72 (1197-1200)

Dioxin 2010 | September 19, 2019 | San Antonio, Texas, USA

Organiska gifter största problemet.

Strandmark, A.; Danielsson, S.; Bignert, A.; Asplund, L.; Eriksson, U.; Haglund,P.
2008 | Havet 2008

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