Bioavailability of lab-contaminated and native polycyclic aromatic hydrocarbons to the amphipodCorophium volutatorrelates to chemical desorption
| العنوان: | Bioavailability of lab-contaminated and native polycyclic aromatic hydrocarbons to the amphipodCorophium volutatorrelates to chemical desorption |
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| المؤلفون: | A.C. Belfroid, Rik Kraaij, S. Ciarelli, Johannes Tolls, Belinda J. Kater |
| المصدر: | Environmental Toxicology and Chemistry. 20:1716-1724 |
| بيانات النشر: | Wiley, 2001. |
| سنة النشر: | 2001 |
| مصطلحات موضوعية: | Fluoranthene, chemistry.chemical_classification, Anthracene, biology, Health, Toxicology and Mutagenesis, Phenanthrene, biology.organism_classification, Bioavailability, chemistry.chemical_compound, Hydrocarbon, chemistry, Bioaccumulation, Environmental chemistry, polycyclic compounds, Environmental Chemistry, Pyrene, Corophium volutator |
| الوصف: | In the present study, the relationship between bioavailability of polycyclic aromatic hydrocarbons (PAHs) to benthic amphipods and the PAH desorption kinetics was examined. To that end, field-contaminated sediment was treated in three different ways. One subsample had no addition of PAHs and contained native PAHs only. To a second subsample, six PAHs (phenanthrene, fluoranthene, anthracene, pyrene, benzo[b]fluoranthene, and benzo[k]fluoranthene) were added in the laboratory. Two of the PAHs were added at higher concentrations to a third subsample, serving as a control for concentration-dependent uptake. Marine amphipods (Corophium volutator) were exposed to the three subsamples for a maximum of 25 d and were subsequently analyzed. Desorption kinetics were determined for both the lab-contaminated and the native PAHs. The biota-to-sediment accumulation factor (BSAF) values of the individual native and lab-contaminated PAHs correlated well with the rapidly desorbing fraction (R2 = 0.76). The BSAFs were 1.4 to 3.3 higher for the lab-contaminated PAHs compared with the native PAHs, while the difference between the rapidly desorbing fractions was a factor of 1.1 to 1.8. The BSAFs of the lab-contaminated PAHs in the second and third subsample were equal, indicating concentration-independent accumulation. The results suggest that lab-contaminated PAHs are more available to amphipods than native PAHs and that differences in bioavailability of lab-contaminated and native PAHs to marine amphipods are related to differences in desorption behavior. |
| تدمد: | 1552-8618 0730-7268 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::ccf54e52be02480b056fbb7a748e539f https://doi.org/10.1002/etc.5620200814 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........ccf54e52be02480b056fbb7a748e539f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15528618 07307268 |
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