PCNs, PCDD/Fs, and Non-orthoPCBs, in Water and Bottom Sediments from the Industrialized Norwegian Grenlandsfjords
2009 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 43, no 10, 3442-3447 p.Article in journal (Refereed) Published
Chlorinated toxic planar aromatic compounds were analyzed in the heavily industrialized Grenlandsfjords, which is a system of silled fjords in southern Norway. Surface water samples contained 7.4-160 ng/m(3) polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs), 14-410 ng/m(3) polychlorinated naphthalenes (PCNs), and 0.31-2.4 ng/m(3) non-orthochlorinated biphenyls (non-orthoPCBs). The concentrations of PCDD/Fs were about 300 times higher than in the Baltic Sea. Highest level of the compounds was found near a magnesium production plant. Hepta-CDFs and penta-CNs dominated in the inner-fiord waters, and tetra-CB77 was the major non-orthoPCB congener. Sediment samples had PCDD/F concentration of 25-730 ng/g dw. Highest concentration was detected close to the magnesium plant. Octa-CDF dominated in the fjord sediments, especially near the magnesium plant, indicating a discharge-specific contamination with this congener. The isomer composition of PCDD/Fs and of PCNs, was unchanged when comparing samples from different layers of a sediment core from the deep anoxic water. This concludes that essentially zero degradation had occurred during similar to 50 years in this environment
Place, publisher, year, edition, pages
2009. Vol. 43, no 10, 3442-3447 p.
Baltic sea, Biphenyls, Contamination, Dibenzo-p-dioxins, GRENLANDSFJORDS, Marine-environment, Norway, PCBS, PCDD/F, PCDD/FS, Polychlorinated naphthalenes, Polycyclic aromatic-hydrocarbons, Samples, Sea, Sediment, Soot-carbon, Surface, surface water, Swedish baltic coast, Time trends, Water, Waters
IdentifiersURN: urn:nbn:se:su:diva-34957DOI: 10.1021/es8011595ISI: 000266046700010ISBN: 0013-936XOAI: oai:DiVA.org:su-34957DiVA: diva2:286021