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Mass flow analysis and environmental risk assessment of nanomaterials

English title Mass flow analysis and environmental risk assessment of nanomaterials
Applicant Nowack Bernd
Number 131241
Funding scheme NRP 64 Opportunities and Risks of Nanomaterials
Research institution Informatics & Sustainability Research Group Technologie und Gesellschaft Empa
Institution of higher education Swiss Federal Laboratories for Materials Science and Technology - EMPA
Main discipline Other disciplines of Environmental Sciences
Start/End 01.06.2011 - 31.12.2015
Approved amount 461'194.00
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Keywords (5)

nanoparticles; nanomaterials; material flow modeling; environmental fate modeling; environmental risk assessment

Lay Summary (German)

Lead
Künstlich hergestellte Nanomaterialien werden intensiv in Wissenschaft und Behörden diskutiert. Viele Aspekte ihres Verhaltens in der Umwelt und ihrer toxischen Effekte sind noch offen. Es ist vor allem nicht möglich, diese Stoffe in der Umwelt nachzuweisen, zum Beispiel in Wasser, Sedimenten oder Böden. Um abschätzen zu können, wie relevant Nanomaterialien für die Umwelt sind und ob Risiken auftreten können, müssen aber Umweltkonzentrationen bestimmt werden, was im vorliegenden Projekt mittels Modellierung erfolgt.
Lay summary

Lead: Künstlich hergestellte Nanomaterialien werden intensiv in Wissenschaft und Behörden diskutiert. Viele Aspekte ihres Verhaltens in der Umwelt und ihrer toxischen Effekte sind noch offen. Es ist vor allem nicht möglich, diese Stoffe in der Umwelt nachzuweisen, zum Beispiel in Wasser, Sedimenten oder Böden. Um abschätzen zu können, wie relevant Nanomaterialien für die Umwelt sind und ob Risiken auftreten können, müssen aber Umweltkonzentrationen bestimmt werden, was im vorliegenden Projekt mittels Modellierung erfolgt.

 

Projektbeschreibung: Ziel des Projektes ist es, mit Hilfe von Modellen die Flüsse von künstlich hergestellten Nanomaterialien in die Umwelt zu quantifizieren und das weitere Verhalten in aquatischen Systemen zu beschreiben. Basierend auf Produktionsmengen und Verwendung von sechs wichtigen Nanomaterialien (nano-Silber, nano-Titandioxid, nano-Zinkoxid, Kohlenstoffnanoröhrchen, Fullerene und nano-Gold) und deren Verhalten in technischen Systemen, wurden Massenflussmodelle aufgestellt, welche für die Schweiz und die EU die Flüsse in die Umwelt abschätzen. Die mechanistische Modellierung des Verhaltens der Nanomaterialien in der Umwelt hat gezeigt, dass die Anbindung der Nanopartikel an natürliche Schwebstoffe im Wasser der zentrale Prozess ist, welcher das Verhalten der Nanomaterialien bestimmt. Da experimentelle Daten fehlten, um das Modell aufbauen zu können, wurden dazu eigene Messungen durchgeführt.

Behörden und Wissenschaftler brauchen dringend Daten zu Umweltkonzentrationen von Nanomaterialien, damit die Diskussion über mögliche Risiken auf eine solide Grundlage gestellt werden kann. Unser Forschungsprojekt liefert diese Daten und trägt daher zu einer objektiven Analyse der Risiken dieser neuartigen Materialien bei.

Direct link to Lay Summary Last update: 11.01.2016

Responsible applicant and co-applicants

Employees

Publications

Publication
Envisioning nano release dynamics in a changing world: using dynamic probabilistic modelling to assess future environmental emissions of engineered nanoparticles
Sun T. Y., Mitrano D., Bornhöft N., Scheringer M., Hungerbühler K., Nowack B (2017), Envisioning nano release dynamics in a changing world: using dynamic probabilistic modelling to assess future environmental emissions of engineered nanoparticles, in Environ. Sci. Technol., 51, 2854-2863.
A Dynamic Probabilistic Material Flow Modeling Method
Bornhöft N., Sun T. Y., Hilty L. M., Nowack B. (2016), A Dynamic Probabilistic Material Flow Modeling Method, in Environmental Modeling and Software , 76, 69-80.
Dynamic Probabilistic Modelling of Environmental Emissions of Engineered Nanomaterials.
Sun T. Y., Bornhöft N., Hungerbühler K., Nowack B. (2016), Dynamic Probabilistic Modelling of Environmental Emissions of Engineered Nanomaterials., in Environ. Sci. Technol. , 50, 5790-5799.
Probabilistic environmental risk assessment of five nanomaterials (nano-TiO2, nano-Ag, nano-ZnO, CNT, Fullerenes).
Coll C., Notter D., Gottschalk F., Sun T. Y., Som C., Nowack B (2016), Probabilistic environmental risk assessment of five nanomaterials (nano-TiO2, nano-Ag, nano-ZnO, CNT, Fullerenes)., in Nanotoxicology, 10, 436-444.
Probabilistic modeling of the flows and environmental risks of nanosilica.
Wang Y., Sun T. Y., Nowack B. (2016), Probabilistic modeling of the flows and environmental risks of nanosilica., in Sci. Total Environ, 545-546, 67-76.
Probabilistic modelling of engineered nanomaterial emissions to the environment: A spatio-temporal approach.
Sun T. Y., Conroy G., Donner E., Hungerbühler K., Lombi E., Nowack B. (2015), Probabilistic modelling of engineered nanomaterial emissions to the environment: A spatio-temporal approach., in Environ. Sci. Nano, 2, 340.
Probabilistic modelling of prospective environmental concentrations of gold nanoparticles from medical applications as a basis for risk assessment
Mahapatra I., Sun T.Y., Clark J., Dobson P., Hungerbuehler K., Owen R., Nowack B., Lead J. (2015), Probabilistic modelling of prospective environmental concentrations of gold nanoparticles from medical applications as a basis for risk assessment, in J. Nanobiotechnol., 13, 93.
Flows of engineered nanomaterials through the recycling process in Switzerland
Caballero-Guzman Alejandro, Sun Tianyin, Nowack Bernd (2014), Flows of engineered nanomaterials through the recycling process in Switzerland, in Waste Management.
Heteroaggregation of Titanium Dioxide Nanoparticles with Model Natural Colloids under Environmentally Relevant Conditions.
Praetorius A., Labille J., Scheringer M., Thill A., Hungerbühler K. Bottero J.-Y. (2014), Heteroaggregation of Titanium Dioxide Nanoparticles with Model Natural Colloids under Environmentally Relevant Conditions., in Environ. Sci. Technol. , 48, 10690-10699.
Comprehensive probabilistic modelling of environmental emissions of engineered nanomaterials
Sun Tianyin, Gottschalk Fadri, Hungerbühler Konrad, Nowack Bernd (2013), Comprehensive probabilistic modelling of environmental emissions of engineered nanomaterials, in Environmental Pollution, 185, 69-76.
Environmental concentrations of engineered nanomaterials: Review of modeling and analytical studies
Gottschalk Fadri, Sun Tianyin, Nowack Bernd (2013), Environmental concentrations of engineered nanomaterials: Review of modeling and analytical studies, in Environmental Pollution, 181, 287-300.
Development of Environmental Fate Models for Engineered Nanoparticles-A Case Study of TiO2 Nanoparticles in the Rhine River
Praetorius Antonia, Scheringer Martin, Hungerbuehler Konrad (2012), Development of Environmental Fate Models for Engineered Nanoparticles-A Case Study of TiO2 Nanoparticles in the Rhine River, in ENVIRONMENTAL SCIENCE & TECHNOLOGY, 46(12), 6705-6713.

Collaboration

Group / person Country
Types of collaboration
University of Birmingham Great Britain and Northern Ireland (Europe)
- Exchange of personnel
Chalmers University of Technology, Göteburg Sweden (Europe)
- in-depth/constructive exchanges on approaches, methods or results
University of South Australia Australia (Oceania)
- Exchange of personnel
University of Gothenburg Sweden (Europe)
- in-depth/constructive exchanges on approaches, methods or results
CEREGE, Aix-en-Provence France (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Research Infrastructure
- Exchange of personnel

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
SUN-SNO-GUIDENANO Sustainable Nanotechnology Conference 2015 Talk given at a conference Dynamic Probabilistic Modelling of Environmental Emissions and Concentrations of Engineered Nanomaterials (ENM) 09.03.2015 Venedig, Italy Sun Tianyin;
CAPACITIE seminar Individual talk Development of environmental fate models for engineered nanoparticles 01.09.2014 York, Great Britain and Northern Ireland Praetorius Antonia;
SETAC Europe Meeting Talk given at a conference Comprehensive Probabilistic Modelling of Environmental Emissions of Engineered Nanomaterials 15.01.2014 Basel, Switzerland Sun Tianyin;
SETAC Europe 24th Annual Meeting Talk given at a conference What are appropriate fate descriptors and modelling approaches to predict environmental concentrations of engineered nanomaterials for risk assessment? 15.01.2014 Basel, Switzerland Praetorius Antonia;
248th American Chemical Society National Meeting and Exposition Talk given at a conference What are appropriate fate descriptors and modeling approaches to predict environmental concentrations of engineered nanomaterials for risk assessment? 15.01.2014 San Francisco, United States of America Praetorius Antonia;
SETAC Europe Talk given at a conference Filling the Gaps in Nanomaterial Exposure Assessment - Heteroaggregation and Fate Modelling in Surface Waters 22.05.2013 Glasgow, Great Britain and Northern Ireland Praetorius Antonia;
8th International Conference on the Environmental Effects of Nanoparticles and Nanomaterials, Talk given at a conference Comprehensive Modelling of Environmental Concentrations of Engineered Nanomaterials 15.01.2013 Aix en Provence, France Sun Tianyin;
8th International Conference on the Environmental Effects of Nanoparticles and Nanomaterials Talk given at a conference Heteroaggregation of Engineered Nanomaterials and Natural Colloids - Experimental and Modeling Approaches. 15.01.2013 Aix en Provence, France Praetorius Antonia;
7th SETAC Europe Special Science Symposium: Fate and Ecotoxicity of Nanoparticles in the Environment. Poster Strategies for Modelling Environmental Concentrations of Engineered Nanomaterials 15.01.2013 Brüssel, Belgium Praetorius Antonia;
NanoSafe 2012 Talk given at a conference Environmental exposure modelling of Engineered Nanomaterials and comparison to their corresponding bulk/total material flows” 15.01.2012 Grenoble, France Sun Tianyin;
SETAC Europe Meeting Poster Environmental exposure modeling of Engineered Nanomaterials and comparison to their corresponding bulk/total material flows 15.01.2012 Berlin, Germany Sun Tianyin;
International Conference on Chemistry and the Environment (ICCE) Talk given at a conference Heteroaggregation of Engineered Nanomaterials and Natural Colloids - Experimental and Modeling Approaches 11.09.2011 Zürich, France Praetorius Antonia;
Gorden Research Conference on Environmental Nanotechnology Poster Filling the Gaps in Nanomaterial Exposure Assessment - Heteroaggregation and Fate Modelling in Surface Waters 05.06.2011 Waterville Valley, USA, United States of America Praetorius Antonia;


Abstract

Lead: Engineered nanomaterials are intensively discussed in science and regulatory bodies. Many aspects of their fate in the environment and their toxic effects and risks are still open. It is also not yet possible to detect then at trace concentrations in natural system such as water, sediments or soils. In order to estimate how relevant nanomaterials are for the environment and if risks to organisms can occur, it is necessary to determine their environmental concentration. This is done by the use of modeling in this project.Project description: The goal of this project is to quantify the flows of engineered nanomaterials to the environment and describe their behavior in the environment by applying material flow and environmental fate models. Based on production and use of six important nanomaterials (nano-silver, nano-titanium dioxide, nano-zinc oxide, carbon nanotubes, fullerenes and nano-gold) and their behavior in technical systems, we developed material flow models which estimate the flows to the environment for Switzerland and the EU. The mechanistic modeling of the behavior of the na-nomaterials in natural waters has shown that the binding of the nanomaterials to natural parti-cles is the most important process affecting their fate in water. Because the data to parameterize the models were not available, experimental studies with nanomaterials and natural particles were performed.Regulators and scientists have an urgent need for environmental concentrations of nanomaterials in order to base the discussion on possible environmental risks on a solid foundation. Our re-search project provides these data and thus helps to put the discussion on risks and chances of nanomaterials in the environment on a scientific basis.
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