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Ecotoxicology and Human Environmental Health
Interactions of Soil Species Exposed to CuO NMs are Different From Cu Salt – A Multispecies Test Luis A Mendes, Mónica JB Amorim, and Janeck J. Scott-Fordsmand Environ. Sci. Technol., Just Accepted Manuscript • DOI: 10.1021/acs.est.8b00535 • Publication Date (Web): 09 Mar 2018 Downloaded from http://pubs.acs.org on March 10, 2018
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Environmental Science & Technology
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Interactions of Soil Species Exposed to CuO NMs are Different From Cu Salt – A
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Multispecies Test
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Luís A. Mendes1,2, Mónica J.B. Amorim1*, Janeck J. Scott-Fordsmand2
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Department of Biology & CESAM, University of Aveiro, Aveiro 3810-193, Portugal;
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Department of Bioscience, Aarhus University, Vejlsovej 25, PO BOX 314, Silkeborg DK-8600,
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Denmark;
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*Corresponding Author:
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Mónica J.B. Amorim
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Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-
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193 Aveiro, Portugal.
[email protected] 14 15
1 ACS Paragon Plus Environment
Environmental Science & Technology
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Abstract
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Although environmental effects are mostly assessed via standard individual species the ecological
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relevance of multispecies testing is well-recognised and highly recommended. Hence, the effect of
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copper oxide nanomaterials (CuONM) and CuCl2 were assessed using the validated soil
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multispecies system (SMS). Besides the individual species (IS) “standard” tests for all, a predation
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study was done. Toxicity was higher in the SMS than in the IS, and longer exposure showed
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increased toxicity. The predator (Hypoaspis aculeifer) preyed most on smaller species, but the net
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biomass consumed was similar across species. Internal Cu in Folsomia candida reached ca. 140 µg
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Cu/g dry weight, fluctuating over time, especialy for CuCl2. Copper was mostly bound to soil
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components for both Cu forms (
