On June 4, 2015 the National Institute for Public Health and the Environment (RIVM) in the Netherlands published a report on “Grouping nanomaterials: A strategy towards grouping and read-across”. RIVM commissioned the development of a strategy to evaluate the potential for read-across for nanomaterials. In this scope, a literature review on physico-chemical properties and their relevance for the behavior, fate and toxicity of nanomaterials in organisms and the environment was compiled. A base set of physico-chemical properties that are essential for characterization of nanomaterials and demonstrate possibilities for read-across was identified. These properties include, among others, porosity and solubility. Further, the strategy provides a framework to evaluate nanomaterials and decide on the applicability of read-across. Based on two hypothetical case studies – on nanosilver and nanotitanium dioxide, respectively – the approach proved useful. However, the authors of the report concluded that more detailed descriptions of the relevant physico-chemical properties of nanomaterials and test conditions are needed to support read-across.

On June 9, 2015 the Organization for Economic Co-operation and Development (OECD) released the results of the testing program on nanomaterials and concluded that standard chemical testing guidelines are for the most part applicable to nanomaterials (FPF reported).

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Sellers, K. et al. (2015). “Grouping nanomaterials : A strategy towards grouping and read-across.RIVM

RIVM (June 4, 2015). “Cost-effective risk assessment of nanomaterials may be feasible.