title: Lanthanide ecotoxicity: first attempt to measure environmental risk for aquatic organisms.
abstract: The geochemical cycles of lanthanides are being disrupted by increasing global production and human use, but their ecotoxicity is not fully characterized. In this study, the sensitivity of Aliivibrio fischeri and Pseudokirchneriella subcapitata to lanthanides increased with atomic number, while Daphnia magna, Heterocypris incongruens, Brachionus calyciflorus and Hydra attenuata were equally sensitive to the tested elements. In some cases, a marked decrease in exposure concentrations was observed over test duration and duly considered in calculating effect concentrations and predicted no effect concentrations (PNEC) for hazard and risk assessment. Comparison of PNEC with measured environmental concentrations indicate that, for the present, environmental risks deriving from lanthanides should be limited to some hotspots (e.g., downstream of wastewater treatment plants). However, considering the increasing environmental concentrations of lanthanides, the associated risks could become higher in the future. Ecotoxicological and risk assessment studies, along with monitoring, are required for properly managing these emerging contaminants.
authors: LIEC, CNRS, UMR 7360, Université de Lorraine, Campus Bridoux, Bâtiment IBISE, 8 rue du général Delestraint, 57070, Metz, France. Electronic address: vga220@ual.es.
authors: Verónica
authors: V
authors: González
authors: LIEC, CNRS, UMR 7360, Université de Lorraine, Campus Bridoux, Bâtiment IBISE, 8 rue du général Delestraint, 57070, Metz, France.
authors: Davide A L
authors: DA
authors: Vignati
authors: Laboratoire Réactions et Genie de Procèdes-CNRS, Université de Lorraine, 1 rue Grandville, BP 20451, 54001, Nancy Cedex, France.
authors: Marie-Noelle
authors: MN
authors: Pons
authors: LIEC, CNRS, UMR 7360, Université de Lorraine, Faculté des Sciences, 15 Avenue du Charmois, 54500, Vandoeuvre-lès-Nancy, France.
authors: Emmanuelle
authors: E
authors: Montarges-Pelletier
authors: LIEC, CNRS, UMR 7360, Université de Lorraine, Campus Bridoux, Bâtiment IBISE, 8 rue du général Delestraint, 57070, Metz, France.
authors: Clément
authors: C
authors: Bojic
authors: LIEC, CNRS, UMR 7360, Université de Lorraine, Campus Bridoux, Bâtiment IBISE, 8 rue du général Delestraint, 57070, Metz, France.
authors: Laure
authors: L
authors: Giamberini
mesh_terms: D048908:Aliivibrio fischeri; D000818:Animals; D059001:Aquatic Organisms / Q000187:drug effects*; D000460:Chlorophyta; D003621:Daphnia / Q000187:drug effects; D054750:Ecotoxicology; D028581:Lanthanoid Series Elements / Q000633:toxicity*; D018570:Risk Assessment; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D028581:Lanthanoid Series Elements; D014874:Water Pollutants, Chemical
keywords: Aquatic; Ecotoxicity; Lanthanides; Risk