Evaluation of diffusive gradients in thin films for prediction of copper bioaccumulation by yellow lampmussel ( Lampsilis cariosa ) and fathead minnow ( Pimephales promelas )
| العنوان: | Evaluation of diffusive gradients in thin films for prediction of copper bioaccumulation by yellow lampmussel ( Lampsilis cariosa ) and fathead minnow ( Pimephales promelas ) |
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| المؤلفون: | Rebecca R. Philipps, Gary L. Mills, Xiaoyu Xu, Robert B. Bringolf |
| المصدر: | Environmental Toxicology and Chemistry. 37:1535-1544 |
| بيانات النشر: | Wiley, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Unionidae, Aquatic Organisms, Health, Toxicology and Mutagenesis, media_common.quotation_subject, Cyprinidae, chemistry.chemical_element, 010501 environmental sciences, Ligands, 01 natural sciences, Lampsilis cariosa, Dissolved organic carbon, Animals, Environmental Chemistry, Computer Simulation, 0105 earth and related environmental sciences, media_common, biology, Chemistry, 010401 analytical chemistry, Biotic Ligand Model, biology.organism_classification, Diffusive gradients in thin films, Copper, 0104 chemical sciences, Speciation, Bioaccumulation, Environmental chemistry, Pimephales promelas, Water Pollutants, Chemical |
| الوصف: | Using a coupled method of diffusive gradients in thin films (DGT) exposure with aquatic organism bioassays, we assessed the use of DGT as a tool for estimating copper (Cu) bioavailability in contaminated waters. The DGT-accumulated Cu fraction could possibly be used as a surrogate for other assessments of metal bioavailability. The Cu concentrations in fathead minnow (Pimephales promelas) and yellow lampmussel (Lampsilis cariosa) soft tissue were compared with DGT-accumulated Cu after 2, 4, and 6 d of exposure to a Cu concentration series in static, water-only assays. The DGT-accumulated Cu was found to include free Cu ions, labile inorganic Cu complexes, and labile dissolved organic matter Cu complexes, compared with Cu speciation output from the biotic ligand model. Regressions of Cu concentrations between DGT and fathead minnow at 4 and 6 d of exposure demonstrated linear relationships. The Cu bioaccumulated in yellow lampmussel was overpredicted by DGT at Cu concentrations greater than 10 µg L-1 , which may be caused by internal regulation of Cu. The speciation component of the biotic ligand model predicted relationships between inorganic Cu and animal-accumulated Cu that were similar to predicted relationships between DGT-indicated Cu and animal-accumulated Cu at all deployment durations. Environ Toxicol Chem 2018;37:1535-1544. © 2018 SETAC. |
| تدمد: | 1552-8618 0730-7268 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e37988be82ffb4c9accb42e949348b8d https://doi.org/10.1002/etc.4108 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....e37988be82ffb4c9accb42e949348b8d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15528618 07307268 |
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