| DOI | Trouver le DOI : https://doi.org/10.1016/j.jhazmat.2021.125525 |
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| Auteur | Rechercher : Mehler, W. Tyler; Rechercher : Snihur, Katherine N.; Rechercher : Zhang, Yifeng; Rechercher : Li, Huizhen; Rechercher : Alessi, Daniel S.; Rechercher : Goss, Greg G.1 |
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| Affiliation | - Conseil national de recherches du Canada. Nanotechnologie
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| Bailleur de fonds | Rechercher : Natural Sciences and Engineering Research Council of Canada |
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| Format | Texte, Article |
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| Description physique | 11 p. |
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| Sujet | hydraulic fracturing; toxicokinetic modeling; osmoregulation; lumbriculus variegatus; inorganics |
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| Résumé | Hydraulic fracturing creates large volumes of flowback and produced water (FPW). The waste is a complex mixture of organic and inorganic constituents. Although the acute toxicity of FPW to freshwater organisms has been studied, few have attempted to discern the interaction between organic and inorganic constituents within this matrix and its role in toxicity. In the present study, bioaccumulation assays (7-d uptake and 7-d elimination period) with FPW (1% dilution) were conducted with the freshwater oligochaete, Lumbriculus variegatus, to evaluate the toxicokinetics of inorganic elements. To evaluate the interacting role of organics, bioaccumulation of elements in unmodified FPW was compared to activated carbon treated FPW (AC-modified). Differences in uptake and elimination rates as well as elimination steady state concentrations between unmodified and AC-modified treatments indicated that the organics play an important role in the uptake and depuration of inorganic elements in FPW. These differences in toxicokinetics between treatments aligned with observed growth rates in the worms which were higher in the AC-modified treatment. Whether growth differences resulted from increased accumulation and changes in toxicokinetic rates of inorganics or caused by direct toxicity from the organic fraction of FPW itself is still unknown and requires further research. |
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| Date de publication | 2021-03-05 |
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| Maison d’édition | Elsevier |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Identificateur | S030438942100488X |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 684a722e-584b-4d48-8d09-65746f3b3658 |
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| Enregistrement créé | 2022-08-23 |
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| Enregistrement modifié | 2022-08-23 |
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