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https://repositorio.inpa.gov.br/handle/1/17187| Título: | Potential of the Biotic Ligand Model (BLM) to Predict Copper Toxicity in the White-Water of the Solimões-Amazon River |
| Autor: | Pont, Giorgi Dal Domingos, Fabíola Xochilt Valdez Fernandes-De-Castilho, Marisa Val, Adalberto Luis |
| Palavras-chave: | Aquatic Organisms Biochemistry Copper Forecasting Ligands Organic Carbon Rivers Aquatic Environments Bioavailability Metal Toxicity Toxicity Predictions Water Chemistry Toxicity Copper Ligand Water Water Pollutant Analysis Chemistry River Toxicity Water Pollutant Copper Ligands Rivers Water Water Pollutants, Chemical |
| Data do documento: | 2017 |
| Revista: | Bulletin of Environmental Contamination and Toxicology |
| É parte de: | Volume 98, Número 1, Pags. 27-32 |
| Abstract: | In this study, we evaluated the capacity of the Biotic Ligand Model (BLM) to predict copper toxicity in white-waters of the Solimões-Amazon River. LC50 tests using the species Otocinclus vittatus (Regan, 1904) were performed with Solimões-Amazon river water (100%) at 20%, 40%, 60%, and 80% dilutions. A sevenfold decrease in both dissolved and total Cu toxicity was observed in the experiment conducted with 100% when compared to 20% white-water, indicating that physicochemical characteristics of white-water attenuate Cu toxicity. There was agreement between the observed LC50 and the LC50 predicted by the BLM after the adjustment of critical accumulation concentration (LA50) for O. vittatus. BLM modeling indicated that dissolved organic carbon (DOC) and pH were the most important water parameters influencing Cu toxicity, followed by Ca2+. Our results highlight the first evidence that the BLM presents potential to predict Cu toxicity to aquatic organisms in the white-water of the Solimões-Amazon River. © 2016, Springer Science+Business Media New York. |
| DOI: | 10.1007/s00128-016-1986-1 |
| Aparece nas coleções: | Artigos |
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