Mar 9 – 11, 2015
NH Laguna Palace Hotel
Europe/Rome timezone

New framework accounting for a spatial differentiation in the calculation of characterisation factors for the toxicity potential of nanomaterials

Mar 9, 2015, 12:10 PM
20m
Breakout 3 (NH Laguna Palace Hotel)

Breakout 3

NH Laguna Palace Hotel

Viale Ancona, n° 2 30172 Venice-Mestre, Italy Tel: +39 041 829 6111 Fax: +39 848 390 230
Parallel session 1C: Life Cycle Thinking & LCA 1C Life Cycle Thinking & LCA

Speaker

Beatrice Salieri (EMPA)

Description

A new modeling framework in life cycle impact assessment (LCIA) is proposed for the calculation of Characterisation Factor (CF) for nanomaterials (such as nano-TiO2 or CNT) for toxicity impact categories. In the recently developed consensus model for ecotoxicity and human toxicity, the USEtoxTM model, the CF is calculated as the product of three factors: Fate Factor, Effect Factor, and Exposure Factor. As shown e.g. in Fantke et al., 2014, or in Sala et al., 2011, toxic impact categories need to have spatially‐differentiated models due to the evidence that differences in fate, exposure and effect mechanisms can vary significantly depending on different geographical contexts. Regarding nanomaterials, their fate and exposure is actually strongly affected by the physicochemical environmental condition; for example, the water chemistry affects the main processes of aggregation and sedimentation for nanomaterials in freshwater, i.e. the fate factor. Our study here describes a spatially-differentiated fate and exposure model for the calculation of CF for the impact categories freshwater ecotoxicity and human toxicity. The project represents another step in the ongoing efforts in order to improve methods for the assessment of the environmental sustainability of nanomaterials.

Primary author

Co-author

Martina Pini (University of Modena and Reggio Emilia-Department of Engineering Sciences and Methods)

Presentation materials