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Aquatic acute species sensitivity distributions of ZnO and CuO nanoparticles.
Sci Total Environ. 2015 Sep 01; 526:233-42.ST

Abstract

Metal oxide nanoparticles are increasingly being produced and will inevitably end up in the aquatic environment. Up till now, most papers have studied individual nanoparticle effects. However, the implementation of these data into a risk assessment tool, needed to characterise their risk to the aquatic environment, is still largely lacking. Therefore, aquatic species sensitivity distributions (SSDs) were constructed for ZnO and CuO nanoparticles and 5% hazard concentrations (HC5) were calculated in this study. The effect of individual nanoparticles on these SSDs was estimated by comparison with bulk SSDs. Additionally, the effect of nanoparticle dynamics (aggregation and dissolution) was considered by evaluating the effect of aggregate size on the toxicity, by estimation of the dissolved fraction and comparison with SSDs for ZnCl2 and CuCl2 inorganic salt. Bacteria, protozoa, yeast, rotifera, algae, nematoda, crustacea, hexapoda, fish and amphibia species were included in the analysis. The results show that algae (Zn) and crustacea (Zn, Cu) are the most sensitive species when exposed to the chemicals. Similar acute sensitivity distributions were obtained for ZnO nanoparticles (HC5: 0.06 with 90% confidence interval: 0.03-0.15 mg Zn/l; 43 data points), bulk ZnO (HC5: 0.06 with CI: 0.03-0.20 mg Zn/l; 23 dps) and ZnCl2 (HC5: 0.03 with CI: 0.02-0.05 mg Zn/l; 261 dps). CuO nanoparticles (HC5: 0.15 with CI: 0.05-0.47 mg Cu/l; 43 dps) are more toxic than the bulk materials (HC5: 6.19 with CI: 2.15-38.11 mg Cu/l; 12 dps) but less toxic than CuCl2 (HC5: 0.009 with CI: 0.007-0.012 mg Cu/l; 594 dps) to aquatic species. However, the combined dissolution and SSD results indicate that the toxicity of these nanoparticles is mainly caused by dissolved metal ions. Based on the available information, no current risk of these nanoparticles to the aquatic environment is expected.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Adam N
Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium. Electronic address: nathalieadam12@gmail.com.
Schmitt C
Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium. Electronic address: claudi.schmitt@gmail.com.
De Bruyn L
Evolutionary Ecology, Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium; Research Institute for Nature and Forest (INBO), Kliniekstraat 25, 1070 Brussels, Belgium. Electronic address: luc.debruyn@uantwerpen.be.
Knapen D
Zebrafishlab, Physiology and Biochemistry of Domestic Animals, Department of Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium. Electronic address: dries.knapen@uantwerpen.be.
Blust R
Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium. Electronic address: ronny.blust@uantwerpen.be.

MeSH

AnimalsCopperDaphniaDose-Response Relationship, DrugMetal NanoparticlesRisk AssessmentToxicity Tests, AcuteWater Pollutants, ChemicalZinc Oxide

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25933293

Citation

Adam, Nathalie, et al. "Aquatic Acute Species Sensitivity Distributions of ZnO and CuO Nanoparticles." The Science of the Total Environment, vol. 526, 2015, pp. 233-42.
Adam N, Schmitt C, De Bruyn L, et al. Aquatic acute species sensitivity distributions of ZnO and CuO nanoparticles. Sci Total Environ. 2015;526:233-42.
Adam, N., Schmitt, C., De Bruyn, L., Knapen, D., & Blust, R. (2015). Aquatic acute species sensitivity distributions of ZnO and CuO nanoparticles. The Science of the Total Environment, 526, 233-42. https://doi.org/10.1016/j.scitotenv.2015.04.064
Adam N, et al. Aquatic Acute Species Sensitivity Distributions of ZnO and CuO Nanoparticles. Sci Total Environ. 2015 Sep 1;526:233-42. PubMed PMID: 25933293.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Aquatic acute species sensitivity distributions of ZnO and CuO nanoparticles. AU - Adam,Nathalie, AU - Schmitt,Claudia, AU - De Bruyn,Luc, AU - Knapen,Dries, AU - Blust,Ronny, PY - 2015/01/29/received PY - 2015/04/12/revised PY - 2015/04/17/accepted PY - 2015/5/2/entrez PY - 2015/5/2/pubmed PY - 2015/9/19/medline KW - Aggregation KW - Aquatic toxicity KW - Dissolution KW - Hazard concentration KW - Metal KW - Nano SP - 233 EP - 42 JF - The Science of the total environment JO - Sci Total Environ VL - 526 N2 - Metal oxide nanoparticles are increasingly being produced and will inevitably end up in the aquatic environment. Up till now, most papers have studied individual nanoparticle effects. However, the implementation of these data into a risk assessment tool, needed to characterise their risk to the aquatic environment, is still largely lacking. Therefore, aquatic species sensitivity distributions (SSDs) were constructed for ZnO and CuO nanoparticles and 5% hazard concentrations (HC5) were calculated in this study. The effect of individual nanoparticles on these SSDs was estimated by comparison with bulk SSDs. Additionally, the effect of nanoparticle dynamics (aggregation and dissolution) was considered by evaluating the effect of aggregate size on the toxicity, by estimation of the dissolved fraction and comparison with SSDs for ZnCl2 and CuCl2 inorganic salt. Bacteria, protozoa, yeast, rotifera, algae, nematoda, crustacea, hexapoda, fish and amphibia species were included in the analysis. The results show that algae (Zn) and crustacea (Zn, Cu) are the most sensitive species when exposed to the chemicals. Similar acute sensitivity distributions were obtained for ZnO nanoparticles (HC5: 0.06 with 90% confidence interval: 0.03-0.15 mg Zn/l; 43 data points), bulk ZnO (HC5: 0.06 with CI: 0.03-0.20 mg Zn/l; 23 dps) and ZnCl2 (HC5: 0.03 with CI: 0.02-0.05 mg Zn/l; 261 dps). CuO nanoparticles (HC5: 0.15 with CI: 0.05-0.47 mg Cu/l; 43 dps) are more toxic than the bulk materials (HC5: 6.19 with CI: 2.15-38.11 mg Cu/l; 12 dps) but less toxic than CuCl2 (HC5: 0.009 with CI: 0.007-0.012 mg Cu/l; 594 dps) to aquatic species. However, the combined dissolution and SSD results indicate that the toxicity of these nanoparticles is mainly caused by dissolved metal ions. Based on the available information, no current risk of these nanoparticles to the aquatic environment is expected. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/25933293/Aquatic_acute_species_sensitivity_distributions_of_ZnO_and_CuO_nanoparticles_ DB - PRIME DP - Unbound Medicine ER -