Stefan Dittmar

Engineer

Research interests

I am an environmental engineer with a background in water treatment. My main research focus is on anthropogenic pollutants in the aquatic environment. I primarily investigate particulate contaminants such as micro- and nanoplastics or tire and road wear particles. My work relates to particle transport and dynamics, e.g. gravitational settling, as well as approaches for environmental sampling.

At GEOMAR, I am currently working within the PlastTrack project.

Education

sched. 01/2025: PhD, "Settling velocities of microplastics and tire and road wear particles", supervised by Prof. M. Jekel (TU Berlin, Germany)

07/2018: Fast track PhD qualification (TU Berlin/UWI, Germany)

03/2017: Environmental Engineering, BSc. (TU Berlin, Germany)

Publications

Dittmar, S.; Ruhl, A. S.; Altmann, K.; Jekel, M. Settling Velocities of Small Microplastic Fragments and Fibers. Environ. Sci. Technol. 2024, 58 (14), 6359–6369.10.1021/acs.est.3c09602

Dittmar, S.; Ruhl, A. S.; Jekel, M. Optimized and Validated Settling Velocity Measurement for Small Microplastic Particles (10–400 μm). ACS EST Water 2023, 3 (12), 4056–4065.10.1021/acsestwater.3c00457

Jekel, M.; Dittmar, S.; Ruhl, A. S. (Eds.) Mikroplastik im Wasserkreislauf: Probennahme, Probenaufbereitung, Analytik, Vorkommen und Bewertung; Universitätsverlag der TU Berlin, 2020. 10.14279/DEPOSITONCE-10406

Hanslik, L.; Sommer, C.; Huppertsberg, S.; Dittmar, S.; Knepper, T. P.; Braunbeck, T. Microplastic-Associated Trophic Transfer of Benzo(k)Fluoranthene in a Limnic Food Web: Effects in Two Freshwater Invertebrates (Daphnia Magna, Chironomus Riparius) and Zebrafish (Danio Rerio). Comp. Biochem. Physiol. Part C Toxicol. Pharmacol. 2020, 237, 108849. 10.1016/j.cbpc.2020.108849

Zietzschmann, F.; Dittmar, S.; Splettstößer, L.; Hunsicker, J.; Dittmann, D.; Meinel, F.; Rößler, A.; Metzger, S.; Jekel, M.; Ruhl, A. S. Fast Empirical Lab Method for Performance Projections of Large-Scale Powdered Activated Carbon Re-Circulation Plants. Chemosphere 2019, 215, 563–573. 10.1016/j.chemosphere.2018.10.055

Dittmar, S.; Zietzschmann, F.; Mai, M.; Worch, E.; Jekel, M.; Ruhl, A. S. Simulating Effluent Organic Matter Competition in Micropollutant Adsorption onto Activated Carbon Using a Surrogate Competitor. Environ. Sci. Technol. 2018, 52 (14), 7859–7866. 10.1021/acs.est.8b01503