Aging and soil organic matter content affect the fate of silver nanoparticles in soil

Coutris, Claire; Joner, Erik J.; Oughton, Deborah

doi:10.1016/j.scitotenv.2012.01.027

Cited by 144 publications

(106 citation statements)

References 24 publications

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“…The results also showed that in contrast to soils treated with AgNO 3 and citrate stabilized AgNP, the bioaccessible fraction of silver from uncoated AgNP increased over time, and by day 70 was between 8 and 9 times greater than that seen in the other two treatments. These findings demonstrate that uncoated AgNP can act as a continuous source of bioaccessible Ag ions (Coutris et al, 2012). These results were confirmed in the present study by the time dependent increase in inhibition of collembolan reproduction (Figures 3, 4).…”

Section: Aged Nm-300k Experimentssupporting

confidence: 90%

“…The influence of soil organic matter content on the binding strength of AgNO 3 , electrostatically (citrate) stabilized and uncoated AgNP has been investigated by Coutris et al (2012). In their experiments soil samples were spiked with the different silver forms and left to age for 2 h, 2 days, 5 or 10 weeks before they were submitted to sequential extraction.…”

Section: Aged Nm-300k Experimentsmentioning

confidence: 99%

See 1 more Smart Citation

Collembola Reproduction Decreases with Aging of Silver Nanoparticles in a Sewage Sludge-Treated Soil

McKee

Engelke

Zhang

et al. 2017

Front. Environ. Sci.

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Section: Aged Nm-300k Experimentssupporting

confidence: 90%

Section: Aged Nm-300k Experimentsmentioning

confidence: 99%

Collembola Reproduction Decreases with Aging of Silver Nanoparticles in a Sewage Sludge-Treated Soil

McKee

Engelke

Zhang

et al. 2017

Front. Environ. Sci.

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“…ZnO-NPs were the Zn species with the highest content in the nonreactive pool indicating that they were associated with less accessible forms according with Zhao et al (2012). However, these data were obtained during a short time period (35 days), and the accessible Zn fraction might increase over time due to Zn release from ZnO-NPs (Coutris et al 2012). DIN extracts were obtained with the purpose of evaluating the potential Zn leaching from soils contaminated with ZnONPs, ZnO bulk, and ZnCl 2 salt to aquatic bodies.…”

Section: Zn Concentrations In Soil and Extractsmentioning

confidence: 94%

“…Sequential extraction has been used extensively to assess the partitioning of trace elements in environmental samples. However, literature involving the application of this technique to NPs is scarce (Coutris et al 2012;Zhao et al 2012). In this work, only fractions involved in displacement processes were obtained because they are related to the labile Zn portion and more easily accessible to soil-inhabiting organisms (earthworms in this work).…”

Section: Zn Concentrations In Soil and Extractsmentioning

confidence: 99%

Toxicity of ZnO Nanoparticles, ZnO Bulk, and ZnCl2 on Earthworms in a Spiked Natural Soil and Toxicological Effects of Leachates on Aquatic Organisms

García‐Gómez¹,

Babín²,

Obrador³

et al. 2014

Arch Environ Contam Toxicol

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The present study assessed the uptake and toxicity of ZnO nanoparticles (NPs), ZnO bulk, and ZnCl 2 salt in earthworms in spiked agricultural soils. In addition, the toxicity of aqueous extracts to Daphnia magna and Chlorella vulgaris was analyzed to determine the risk of these soils to the aquatic compartment. We then investigated the distribution of Zn in soil fractions to interpret the nature of toxicity. Neither mortality nor differences in earthworm body weight were observed compared with the control. The most sensitive end point was reproduction. ZnCl 2 was notably toxic in eliminating the production of cocoons. The effects induced by ZnO-NPs and bulk ZnO on fecundity were similar and lower than those of the salt. In contrast to ZnO bulk, ZnO-NPs adversely affected fertility. The internal concentrations of Zn in earthworms in the NP group were greater than those in the salt and bulk groups, although bioconcentration factors were consistently \1. No relationship was found between toxicity and internal Zn amounts in earthworms. The results from the sequential extraction of soil showed that ZnCl 2 displayed the highest availability compared with both ZnO. Zn distribution was consistent with the greatest toxicity showed by the salt but not with Zn body concentrations. The soil extracts from both ZnO-NPs and bulk ZnO did not show effects on aquatic organisms (Daphnia and algae) after short-term exposure. However, ZnCl 2 extracts (total and 0.45-lm filtered) were toxic to Daphnia.

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“…The influence of contact time between NPs and bottom sediment on NPinduced toxic effects is particularly important in this respect. The research shows (e.g., Coutris et al 2012;Jośko and Oleszczuk 2013) that this is an important factor in determining the toxicity of NPs in soils. Evaluation of the influence of aging on the toxicity of NPs is especially justified in benthic sediments due to a much longer retention time of NPs in these sediments compared to other environments (Liu and Cohen 2014).…”

Section: Introductionmentioning

confidence: 99%

The bioavailability and toxicity of ZnO and Ni nanoparticles and their bulk counterparts in different sediments

2016

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Purpose The intensive development of nanotechnology raises a question of the potential consequences of the presence of nanoparticles (NPs) in the different components of the environment, including sediments. The aim of this study was to evaluate the toxicity of nanoparticles of ZnO and Ni and their bulk counterparts in bottom sediments (SD1, SD2) with different properties collected from the Vistula River in Poland. Materials and methods Sediment samples with NPs at a concentration of 100 mg kg −1 were incubated for 17 months in the dark or under a photoperiod of 12 h light/12 h dark. The Microtox ® (bacteria, Vibrio fischeri) and OSTRACODTOXKIT F ™ (ostracods, Heterocypris incongruens) tests were used to evaluate toxicity. In addition, the contents of Zn and Ni were determined in extracts (H 2 O and CaCl 2 ) of the bottom sediments. Results and discussion The Zn concentration was much lower in the SD1 sediment with the addition of NPs/bulk particles (30-230 μg kg −1 ) compared to the SD2 sediment (280-1140 μg kg −1 ). The toxicity of ZnO and Ni was determined by the type of bottom sediment and the parameter studied.Both nano-and bulk-ZnO and Ni caused the mortality of H. incongruens at a level of 13.3-53.3 %. The influence of ZnO and Ni on the growth of H. incongruens was observed to be the opposite. ZnO resulted in growth stimulation, while Ni resulted in growth inhibition of H. incongruens. Both ZnO and Ni stimulated V. fisheri luminescence. In most cases, the incubation of ZnO and Ni under the photoperiod increased the toxicity or decreased the stimulation of V. fisheri bioluminescence and H. ingongruens growth compared to the darkincubated sediments. Conclusions The study provides new and important information on the ecotoxicological effects of ZnO and Ni nanoparticles in different sediments and under various environmental conditions that may be useful for the risk assessment of this new group of contaminants.

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Aging and soil organic matter content affect the fate of silver nanoparticles in soil

Cited by 144 publications

References 24 publications

Collembola Reproduction Decreases with Aging of Silver Nanoparticles in a Sewage Sludge-Treated Soil

Collembola Reproduction Decreases with Aging of Silver Nanoparticles in a Sewage Sludge-Treated Soil

Toxicity of ZnO Nanoparticles, ZnO Bulk, and ZnCl2 on Earthworms in a Spiked Natural Soil and Toxicological Effects of Leachates on Aquatic Organisms

The bioavailability and toxicity of ZnO and Ni nanoparticles and their bulk counterparts in different sediments

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