Meritve in modeliranje mikroplastike na slovenski obaliKranjc Požar, Ajda (Avtor) Istenič, Darja (Mentor) Žagar, Dušan (Komentor) civil engineeringmaster thesisGulf of TriestemicroplasticsmodelingsamplinganalysismeasurementsThis master’s dissertation discusses modeling and sampling of microplastics (MP) on the Slovenian coast. The Nafta3d model based on particle tracking method was used to simulate spreading of MP. For each of the three potential sources of MP discharge into the sea (rivers Rižana and Dragonja and the discharge from the sewage treatment plant Piran), we simulated four wind conditions and constructed images of MP concentrations in a one-day temporal resolution. From the obtained 84 images of the performed simulations the pathways of MP dispersion were evident. Based on the results of the model, we selected three beaches for MP sampling and three reference beaches where, based on the simulations, contamination with MP should be lower. MP isolation from samples taken at the six locations was based on flotation, and potential MP particles were identified based on a robust melting identification method. The results of the sampling and MP analysis showed, that the beaches where more MP from the selected sources was carried by simulated circulation are more polluted with MP than the reference beaches. The Nafta3d numerical model proved to be a suitable tool for predicting the MP dispersion in the coastal sea.[A. Kranjc Požar]20242024-03-01 08:45:03Magistrsko delo/naloga154781sl