Environmental concentrations of engineered nanomaterials: Review of modeling and analytical studies

Gottschalk, Fadri; Sun, Tianze; Nowack, Bernd

doi:10.1016/j.envpol.2013.06.003

Cited by 1,020 publications

(641 citation statements)

References 89 publications

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“…The resulting soil ENM concentrations were on the high end of those currently predicted for metal oxides in soil (Gottschalk et al, 2013), but were well within the concentrations predicted for biosolids (Gottschalk et al, 2013;Lazareva and Keller, 2014). Hence, the soil ENM concentrations used in this experiment may be indicative of those found in soils repeatedly amended with biosolids.…”

Section: Enm Transport Through Unsaturated Soilmentioning

confidence: 60%

Gravity-driven transport of three engineered nanomaterials in unsaturated soils and their effects on soil pH and nutrient release

Conway

Keller

2016

Water Research

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a b s t r a c tThe gravity-driven transport of TiO 2 , CeO 2 , and Cu(OH) 2 engineered nanomaterials (ENMs) and their effects on soil pH and nutrient release were measured in three unsaturated soils. ENM transport was found to be highly limited in natural soils collected from farmland and grasslands, with the majority of particles being retained in the upper 0e3 cm of the soil profile, while greater transport depth was seen in a commercial potting soil. Physical straining appeared to be the primary mechanism of retention in natural soils as ENMs immediately formed micron-scale aggregates, which was exacerbated by coating particles with Suwannee River natural organic matter (NOM) which promote steric hindrance. Small changes in soil pH were observed in natural soils contaminated with ENMs that were largely independent of ENM type and concentration, but differed from controls. These changes may have been due to enhanced release of naturally present pH-altering ions (Mg 2þ , H þ ) in the soil via substitution processes.These results suggest ENMs introduced into soil will likely be highly retained near the source zone.

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Section: Enm Transport Through Unsaturated Soilmentioning

confidence: 60%

Gravity-driven transport of three engineered nanomaterials in unsaturated soils and their effects on soil pH and nutrient release

Conway

Keller

2016

Water Research

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“…EC50) for nanoparticles is influenced by several aspects (Li et al, 2014;Seitz et al, 2013;Dabrunz et al, 2011;Gottschalk et al, 2013) as: the crystalline structure of nano-TiO2, the treatments of the sample to test (i.e. filtered or unfiltered, use of solvent), the com-bination of different materials with varying testing condition, the expo-sure time and the exposure under UV radiation.…”

Section: The Effect Factor For Nano-tio2mentioning

confidence: 99%

“…The development of freshwater-ecotoxicity CFs for ENPs is still in its infancy due to the scarce knowledge of the exposure and effects to aquatic organisms. More fate and transport models (F&T) to assess the concentration of ENPs in the environmental media are yet to emerge (Liu and Cohen, 2014;Gottschalk et al, 2010;Gottschalk et al, 2013). It is evident that the lack of ecotoxicity CF of ENPs impedes the evaluation of ecotoxicological impacts caused by their emissions into the environment.…”

Section: Introductionmentioning

confidence: 99%

Freshwater ecotoxicity characterisation factor for metal oxide nanoparticles: A case study on titanium dioxide nanoparticle

Salieri

Righi

Pasteris

et al. 2015

Science of The Total Environment

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“…For some nanoparticles, it might be feasible to trace them analytically in these actual environmental matrices [44]. The results might be interpreted in a different way than for small molecules.…”

Section: Biodegradability Transformation Alteration and Agingmentioning

confidence: 99%

Nanopharmaceuticals: Tiny challenges for the environmental risk assessment of pharmaceuticals

Berkner

Schwirn

Voelker

2015

Enviro Toxic and Chemistry

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Many new developments and innovations in health care are based on nanotechnology. The field of nanopharmaceuticals is diverse and not as new as one might think; indeed, nanopharmaceuticals have been marketed for many years, and the future is likely to bring more nanosized compounds to the market. Therefore, it is time to examine whether the environmental risk assessment for human pharmaceuticals is prepared to assess the exposure, fate, and effects of nanopharmaceuticals in an adequate way. Challenges include the different definitions for nanomaterials and nanopharmaceuticals, different regulatory frameworks, the diversity of nanopharmaceuticals, the scope of current regulatory guidelines, and the applicability of test protocols. Based on the current environmental risk assessment for human medicinal products in the European Union, necessary adaptations for the assessment procedures and underlying study protocols are discussed and emerging solutions identified. Environ Toxicol Chem 2016;35:780-787.

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Environmental concentrations of engineered nanomaterials: Review of modeling and analytical studies

Cited by 1,020 publications

References 89 publications

Gravity-driven transport of three engineered nanomaterials in unsaturated soils and their effects on soil pH and nutrient release

Gravity-driven transport of three engineered nanomaterials in unsaturated soils and their effects on soil pH and nutrient release

Freshwater ecotoxicity characterisation factor for metal oxide nanoparticles: A case study on titanium dioxide nanoparticle

Nanopharmaceuticals: Tiny challenges for the environmental risk assessment of pharmaceuticals

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