Effects of Particle Size on Chemical Speciation and Bioavailability of Copper to Earthworms (Eisenia fetida) Exposed to Copper Nanoparticles

To investigate the role of particle size on the oxidation, bioavailability, and adverse effects of manufactured Cu nanoparticles (NPs) in soils, we exposed the earthworm Eisenia fetida to a series of concentrations of commercially produced NPs labeled as 20‐ to 40‐nm or 65 mg Cu kg−1 soil).

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Bibliographische Detailangaben
Veröffentlicht in:	Journal of environmental quality 2010-11, Vol.39 (6), p.1942-1953
Hauptverfasser:	Unrine, Jason M., Tsyusko, Olga V., Hunyadi, Simona E., Judy, Jonathan D., Bertsch, Paul M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption spectroscopy Animals Atoms & subatomic particles Bioavailability Biological Availability Chemical speciation Copper Copper - chemistry Copper - pharmacokinetics COPPER IONS COPPER SULFATE Eisenia fetida Fluorescence microscopy Fuel cells Gene expression Homeostasis Mass spectrometry Media Metal concentrations Metal Nanoparticles - chemistry MICA Nanomaterials Nanoparticles Oligochaeta - drug effects Oligochaeta - metabolism Oxidative stress Particle Size PARTICLE SIZE AND SHAPE PARTICLES Pesticides Side effects SOILS Spatial distribution Speciation Stress concentration Studies Surface chemistry X RAYS X-ray fluorescence
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Beschreibung
Zusammenfassung:	To investigate the role of particle size on the oxidation, bioavailability, and adverse effects of manufactured Cu nanoparticles (NPs) in soils, we exposed the earthworm Eisenia fetida to a series of concentrations of commercially produced NPs labeled as 20‐ to 40‐nm or 65 mg Cu kg−1 soil).
ISSN:	0047-2425 1537-2537 1537-2537
DOI:	10.2134/jeq2009.0387