In September we would like to present a paper of the BMBF project Fe-Nanosit. The project dealt with the use of iron-containing nanomaterials in groundwater and wastewater remediation. A comprehensive assessment and weighing of benefits and possible environmental risks resulting from the application is now presented by the project partners in this paper.
Groundwater is indispensable for the drinking water supply in many areas of the world. Therefore, contamination of groundwater with pollutants requires purification before drinking water can be produced from it. There are different methods available for such a purification or remediation. The choice of the remediation method is made in such a way that as little damage as possible is caused to the respective ecosystem. In the present study, the in-situ remediation agent Carbo-Iron® was investigated and the benefits compared with possible harmful effects. From existing and newly collected ecotoxicity data in various organisms (water flea, algae, insects, bacteria), non-effect concentrations of 0.1 mg Carbo-Iron® per liter of water were derived. These concentrations were compared with measured and modelled environmental concentrations of Carbo-Iron®, as typically found in groundwater after remediation. For this purpose, a field study was evaluated, which was carried out in an aquifer contaminated with chlorinated hydrocarbons under an old laundry. The comprehensive final evaluation clearly showed that the total environmental risk was significantly reduced by the destruction of the chlorinated hydrocarbons by means of Carbo-Iron®.
This study is thus one of only a few to carry out a comprehensive risk assessment in a nanomaterials use case that involves a release into the environment (here into groundwater). In this case it could be clearly shown that the benefits of the application (the destruction of pollutants) clearly outweigh the risks (effects of Carbo-Iron® on organisms).
Mirco Weil, Katrin Mackenzie, Kaarina Foit, Dana Kühnel, Wibke Busch, Mirco Bundschuh, Ralf Schulz, Karen Duis (2019) Environmental risk or benefit? Comprehensive risk assessment of groundwater treated with nano Fe0-based Carbo-Iron®. Science of The Total Environment, 677, 156-166, https://doi.org/10.1016/j.scitotenv.2019.04.360
Spotlight January 2022: Methods, models, mechanisms and metadata
For the new year, we are presenting no “classic” paper here, but would like to point out an editorial: Methods, Models, Mechanisms and Metadata: Introduction to the Nanotoxicology Collection at F1000 Research. This editorial introduces the F1000Research Nanotoxicology Collection, where best practices can be collected in the form of original research reports, including no-effect studies, […]Read more
Spotlight June 2022: From small to clever – What does the future hold for the safety and sustainability of advanced materials?
The smallest particles in materials research, nanoparticles, have occupied us intensively for more than 20 years to elucidate and further investigate their safety for humans and the environment. Now, however, the development is going from “small = nano” to “clever = advanced”, as discussed in a contribution by international scientists. Thereby, it is a great […]Read more
Spotlight August 2022: Three-stage model for the formation of micro- and nanoplastic particles.
Plastic pollution is a global problem that will continue to affect humanity for more than 100 years. There is the visible pollution, e.g. plastic debris in the environment, which leads to death for many animals (because they mistakenly think the plastic is food and eat it or because they get caught in the plastic waste). […]Read more
Spotlight May 2021: Towards safe and sustainable innovation in nanotechnology: State-of-play for smart nanomaterials
The European Commission’s new Action Plan for a Circular Economy Green Deal, the new European Industrial Strategy as well as the Chemicals Strategy for Sustainability presented in October 2020 are ambitious plans to achieve a sustainable, fair and inclusive economy in the European Union. These strategies require that any new material or product must not […]Read more