Organochlorine compounds in the Gulf of Bothnia: sediment and benthic species
| Autor: | Dag Broman, Carina Näf, Cecilia Bandh, Christoffer Rappe, Rasha Ishaq, Bert van Bavel, Per-Anders Bergqvist, B. Strandberg |
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| Rok vydání: | 2000 |
| Předmět: |
Insecticides
Environmental Engineering Amphipoda Health Toxicology and Mutagenesis Chlordane Gas Chromatography-Mass Spectrometry Saduria entomon DDT Dieldrin chemistry.chemical_compound Hexachlorobenzene Animals Soil Pollutants Environmental Chemistry Sweden biology Chemistry Fishes Public Health Environmental and Occupational Health Sediment General Medicine General Chemistry biology.organism_classification Polychlorinated Biphenyls Pollution Chlordan Environmental chemistry Bioaccumulation Environmental Pollutants Monoporeia Hexachlorocyclohexane |
| Zdroj: | Chemosphere. 40:1205-1211 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/s0045-6535(99)00370-7 |
| Popis: | Surface sediment, amphipods (Monoporeia affinis), isopods (Saduria entomon) and fourhorn sculpins (Oncocottus quadricornis) were collected at two coastal stations in the Gulf of Bothnia, one in the Bothnian Bay and the other in the Bothnian Sea. The objective was to study the concentrations, composition profiles, bioaccumulation features and spatial differences of organochlorine compounds such as hexachlorocyclohexanes (HCHs), DDTs, hexachlorobenzene (HCBz), chlordanes (CHLs), dieldrin, Mirex and polychlorinated biphenyls (PCBs). All groups of compounds were found in every sample investigated, with the exception of Mirex that was not detected in the sediment samples. The concentrations for e.g. PCBs and CHLs ranged from 700 to 2400 and 70 to 400 ng/g lipid in the specimens. For the corresponding sediments the results were 9.0-9.3 ng/g dw for PCBs and 0.54-0.57 ng/g dw for CHLs, respectively. Bioaccumulation differences between the species with regard to both degree of and type of compound were observed. The highest accumulation potential was found for the cyclodiene compounds including CHLs and Mirex in isopod. Finally, there were only small concentration and bioaccumulation differences between the two stations. |
| Databáze: | OpenAIRE |
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