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Assessing the ecotoxicity of metal nano-oxides with potential for wastewater treatment

Nogueira, V. ; Lopes, I. ; Rocha-Santos, T. A. P. ; Rasteiro, M. G. ; Abrantes, N. ; Gonçalves, F. ; Soares, A. M. V. M. ; Duarte, A. C. ; Pereira, R.

Environmental science and pollution research international, 2015-09, Vol.22 (17), p.13212-13224 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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Título:
Assessing the ecotoxicity of metal nano-oxides with potential for wastewater treatment
Autor: Nogueira, V. ; Lopes, I. ; Rocha-Santos, T. A. P. ; Rasteiro, M. G. ; Abrantes, N. ; Gonçalves, F. ; Soares, A. M. V. M. ; Duarte, A. C. ; Pereira, R.
Assuntos: Adsorbents ; Animals ; Aquatic life ; Aquatic Organisms - drug effects ; Aquatic Organisms - genetics ; Aquatic Pollution ; Artemia salina ; Atmospheric Protection/Air Quality Control/Air Pollution ; Brachionus plicatilis ; Chemical oxygen demand ; Daphnia magna ; Earth and Environmental Science ; Ecotoxicology ; Environment ; Environmental Chemistry ; Environmental Health ; Environmental science ; Lemna minor ; Light ; Metal oxides ; Metals ; Metals - chemistry ; Nanomaterials ; Nanotechnology ; Organisms ; Oxides - chemistry ; Oxides - toxicity ; Particle size ; Photocatalysis ; Raphidocelis subcapitata ; Research Article ; Salmonella ; Salmonella typhimurium ; Studies ; Toxicity ; Vibrio fischeri ; Waste Management ; Waste Water - chemistry ; Waste Water Technology ; Water Management ; Water Pollutants, Chemical - chemistry ; Water Pollutants, Chemical - toxicity ; Water Pollution Control ; Water treatment
É parte de: Environmental science and pollution research international, 2015-09, Vol.22 (17), p.13212-13224
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: The rapid development of nanotechnology and the increasing use of nanomaterials (NMs) raise concern about their fate and potential effects in the environment, especially for those that could be used for remediation purposes and that will be intentionally released to the environment. Despite the remarkable emerging literature addressing the biological effects of NMs to aquatic organisms, the existing information is still scarce and contradictory. Therefore, aimed at selecting NMs for the treatment of organic and inorganic effluents, we assessed the potential toxicity of NiO (100 and 10–20 nm), Fe 2 O 3 (≈85 × 425 nm), and TiO 2 (<25 nm), to a battery of aquatic organisms: Vibrio fischeri , Raphidocelis subcapitata , Lemna minor , Daphnia magna , Brachionus plicatilis , and Artemia salina . Also a mutagenic test was performed with two Salmonella typhimurium strains. Suspensions of each NM, prepared with the different test media, were characterized by dynamic light scattering (DLS) and eletrophoretic light scattering (ELS). For the assays with marine species, no toxicity was observed for all the compounds. In opposite, statistically significant effects were produced on all freshwater species, being D. magna the most sensitive organism. Based on the results of this study, the tested NMs can be classified in a decreasing order of toxicity NiO (100 nm) > NiO (10–20 nm) > TiO 2 (<25 nm) > Fe 2 O 3 , allowing to infer that apparently Fe 2 O 3 NMs seems to be the one with less risks for receiving aquatic systems.
Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma: Inglês

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Assessing the ecotoxicity of metal nano-oxides with potential for wastewater treatment

Nogueira, V. ; Lopes, I. ; Rocha-Santos, T. A. P. ; Rasteiro, M. G. ; Abrantes, N. ; Gonçalves, F. ; Soares, A. M. V. M. ; Duarte, A. C. ; Pereira, R.

Berlin/Heidelberg: Springer Berlin Heidelberg

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