Found 2226 publications. Showing page 92 of 223:
The application of models under the European Union's Air Quality Directive: A technical reference guide. EEA Technical Report, 10/2011
2011
Contaminants in fish from Etnefjord, Norway. NILU OR
1,2,5,6,9,10-hexabromocyclododecane (HBCDD) is one of the most frequently used brominated flame retardants (BFR) and is considered as an emerging environmental pollutant. Recently, high levels of HBCDD were reported in five different fish species from Etnefjord, which is a branch of the Hardangerfjord at the southwest coast of Norway. This report raised some serious concerns and the Norwegian Climate and Pollution Agency (Klif) therefore initiated a survey of HBCDD in cod and flounder from Etnefjorden in order to confirm the findings. In addition to HBCDD, the levels of other environmental pollutants were analyzed in the fish, namely polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), hexachlorocyclohexane (HCH), dichlorodiphenyltrichloroethane (DDT), mercury (Mg), lead (Pb), cadmium (Cd) and arsenic (As). The fish muscle filet and livers were prepared and analyzed using recognized and previously published methods. The levels of HBCDD in the fish were low, representing expected background concentrations. HBCDD was only detected in the cod livers with concentrations ranging 0.3-5.7 ng/g wet weight, corresponding to 1.3-8.2 ng/g on a lipid weight basis. Previously, it was reported a level of 30 000 ng/g lipid weight in cod filet, which is, as far as we know, the highest HBCDD concentration ever reported in cod. Our study could, therefore, not confirm the recent findings that showed high HBCDD concentrations in fish from the Etnefjord area. Also, the levels of the other pollutants were low. For example, the concentrations of DDT, PCB, HCH and Hg can, according to Klifs system for classification of environmental state, be regarded as background levels (class 1, slightly/negligible polluted). In conclusion, there are no recons to believe that cod and flounder in Etnefjorden is exposed to considerable amount of environmental pollutants, neither of HBCDD nor other contaminants. Only further analysis of sediments from the inner site of the fjord can, however, positively reveal a possible HBCDD source.
2011
2011
2011
Environmental contaminants in fish and zooplankton from Lake Mjøsa, 2010. NIVA-rapport, 6141-2011
2011
Monitoring long-range transboundary air pollution 2010. Summary report. NIVA-rapport, 6183-2011
2011
Transboundary acidification, eutrophication and ground level ozone in Europe in 2009. EMEP status report 1/2011
2011
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual report 2010. NILU OR
This is an annual report describing the activities and main results of the monitoring programme ¿Monitoring of the atmospheric ozone layer and natural ultraviolet radiation¿ for 2010.
2010 was a year with generally high ozone values above Norway. A clear decrease in the ozone layer above Norway during the period 1979-1997 stopped after 1998 and the ozone layer above Norway seems now to have stabilized.
2011
Inert dispersion of a unitary emission has been combined with time dependent air chemistry to provide maximum impact of nitrosamines and nitramines in air and water for emissions from the amine absorber at TCM. The calculations show that worst case impact of nitrosamines and nitramines in air is 5 % of the recommended guideline value. The maximum concentrations in fresh water range from13 % to 53 % of the guideline depending on the use of absorbent and flue gas. Estimates for a likely case impact show that air concentrations will be a factor of 3 lower than the worst case, while water concentrations will be a factor from 10 to 20 lower than the worst case depending on the type of absorber.
2011
2011