About the positions We have two vacant PhD positions at NTNU’s Department of Biology. The positions are affiliated to the LimnoPlast project: “Microplastics in Europe’s freshwater ecosystems: from sources to solutions” funded by the European Commission. Both positions have a fixed-term period of three years, preferably starting from 01.05.2020. The positions in detail: The first PhD position will focus on the toxicity leaching from conventional and new plastic materials using a range of in vitro bioassays and high-resolution mass spectrometry. The second PhD project will be about the toxicity of microplastics in freshwater invertebrates, looking into the impacts of different particle shapes and polymers. Main duties and responsibilities Microplastics (i.e., microscopic plastic