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

Environmental fate of nanopesticides and exposure assessment

Mar 10, 2015, 3:28 PM
24m
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 4C: Environmental Release, Fate and Exposure 4C Environmental Release, Fate and Exposure

Speaker

Melanie Kah (University of Vienna)

Description

Research into nanotechnology applications for use in agriculture has become increasingly popular over the past decade. Investigations into the environmental fate of nanopesticides remain scarce however, and the current state of knowledge does not appear to be sufficient for a reliable assessment to be made of the benefits and risks associated with nanopesticides. It is not clear for instance, whether current analytical methods, test protocols and exposure modelling approaches can account for novel “nano” properties of some nanopesticides. With the aim to address the knowledge gap, experiments were carried out on a series of polymer-based nanopesticides. The suitability of standard regulatory protocols to determine fate parameters in soils (OECD tests for sorption and degradation) was evaluated in the context of pesticide regulatory assessment in the EU. Discrepancies between free and nanoformulated active ingredient were also analysed based on the results obtained by more realistic experimental set up and from the characterization of the nanocarriers. Comparison with commercial formulations was also considered to distinguish nano-specific-effects from those related to already existing formulations. Overall, results serve as a useful basis to discuss the (in)adequacy of current protocols, and identify priorities for research.

Primary author

Melanie Kah (University of Vienna)

Co-authors

Anne-Kathrin Weniger (University of Vienna) Thilo Hofmann (University of Vienna)

Presentation materials

There are no materials yet.