Ecotoxicity of lanthanides to Daphnia magna: insights from elemental behavior and speciation in a standardized test medium [* Cross-Reference *]

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Pinto, Ivo; Henriques, Bruno; Viana, Thainara; Freitas, Rosa; Pereira, Eduarda; Antunes, Sara C., 2024, "Ecotoxicity of lanthanides to Daphnia magna: insights from elemental behavior and speciation in a standardized test medium [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.LCS5HU, LIST Open Repository, V1
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Technological advancement has brought significant environmental challenges, as its associated waste is difficult to manage and its long-term effects on ecosystems and biota remains uncertain. This study aimed to evaluate the acute toxicity of rare earth elements (REEs): lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, and yttrium on the standard aquatic species Daphnia magna through a toxicity screening approach. Based on EC50 values, the most toxic element was yttrium (EC50 = 7.2 mg L−1), followed by scandium, dysprosium, europium, lutetium, neodymium, holmium, gadolinium, ytterbium, thulium, terbium, samarium, cerium, and lanthanum (10 > EC50 < 100) identified as harmful, and praseodymium classified as non-toxic with an EC50 above 100 mg L−1 (130.81 mg L−1). This study demonstrates that all REEs, except praseodymium, induce acute effects in D. magna using ASTM as a culture medium. The results also highlight the need for standardized screening studies to obtain reliable data for both predictive and retrospective environmental risk features. (2024-10-07)
***This entry has been automatically imported via Infodoc(ASO) CSV by LIST harvest scripts. Please refer to https://doi.org/10.24072/PCJOURNAL.440 for the original and latest version of the dataset and data downloads*** (2025-09-03)
Subject Earth and Environmental Sciences
Keyword Acute toxicity, Cladocera, Ecotoxicity, Lanthanoids, Transition metals
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