News
News MatFuels 17/6-2025: Effects of ammonia studied on plankton and bacteria in Roskilde Fjord
How does ammonia affect microscopic marine organisms in the event of a spill? That question has been the focus of researchers from Aarhus University, led by PhD student Julie Svensgaard, through an extensive experiment conducted in Roskilde Fjord during May and June 2025.
In large 1000-liter tanks placed directly in the fjord, the effects of simulated ammonia spills were studied over a period of two weeks. The development of ammonia concentrations, among other things, was continuously measured to monitor how ammonia is processed in the water column and how plankton and bacteria respond to different concentrations of ammonia.
The aim of the experiment is to improve the understanding of ammonia degradation in marine environments. The results will contribute to more accurate models for spill simulations and risk assessments related to the use of ammonia as a marine fuel.
PhD student at Aarhus University begins research on environmental effects of green fuels
In August 2024, Julie Svensgaard started her PhD at the Department of Ecoscience, Aarhus University, as part of the MAT-Fuels project.
- Over the next 3 years, Julie will focus on researching the ecotoxicity, degradation, and spread of Green fuels in marine ecosystems through both laboratory and in situ experiments.
