Kerstin Hund-Rinke

TL;DR: It was shown that nanoparticles may have ecotoxicological effects which depend on the nature of the particles, and they can be assessed using methods comparable to the procedures applied for assessing soluble chemicals.

TL;DR: In this article, a review combines patchwise ENM research using natural soils with the much wider literature on ENM performed in standard tests or on the fate of colloids in soils, and an analysis of diverse ENM characteristics determining availability from the soil organisms' perspective to assess the main soil characteristics that determine the fate, speciation, and ultimately bioavailability of ENM in natural soils.

TL;DR: A wide range of possible microbial indicators are presented, some of them standardized; each provides slightly different information on soil quality.

TL;DR: Environmental realism in ENM hazard assessments should involve greater coordination among ENM quantitative analysts, exposure modelers, and ecotoxicologists, across government, industry, and academia.

TL;DR: Critical components were identified by workshop participants that require specific guidance for MN testing: preparation of dispersions, dose metrics, the importance and challenges associated with maintaining and monitoring exposure levels, and the need for reliable methods to quantify MNs in complex media.