Stephanie Spahr

+49 (0)30 64181 697

Müggelseedamm 301, 12587 Berlin

Research group
  • Trace organic contaminants in surface waters, wastewater, stormwater, and drinking water
  • Biogeochemical transformation processes of organic contaminants 
  • Advanced oxidation processes for water treatment
  • Urban blue-green infrastructure for stormwater purification
  • Compound-specific isotope analysis to assess contaminant sources and transformation mechanisms

Scientific Career

Since 2021        Research Group Leader, IGB Berlin, Germany

2019 - 2021       Junior Research Group Leader, University of Tübingen, Germany, Center for Applied Geoscience

2016 - 2019       Postdoctoral Researcher, Stanford University, CA, USA, Department of Civil and Environmental Engineering & Research Center for Re-Inventing the Nation’s Urban Water Infrastructure (ReNUWIt).



2012 - 2016     PhD in Environmental Chemistry, Swiss Federal Institute of Technology Lausanne (EPFL, Switzerland) & Swiss Federal Institute of Aquatic Science and Technology (Eawag, Switzerland). Thesis: Formation of N-nitrosodimethylamine during water disinfection with chloramine: Insights into reaction mechanisms from isotope fractionation analyses.

2010 - 2012      MSc in Geoecology, University of Tübingen, Germany. Thesis: Carbon and nitrogen isotope analysis of benzotriazoles (conducted for 8 months at Eawag, Switzerland)

2007 - 2010     BSc in Geoecology / Ecosystem management, University of Tübingen, Germany


Honors and Awards



  • American Chemical Society (ACS)
  • Gesellschaft Deutscher Chemiker (GDCh)
  • Water Chemistry Society
  • German Academic International Network (GAIN)



Dr. Clarissa Glaser; Prof. Dr. Michael Kunz; Dr. Stephanie Spahr; Dr. Ute Weber

Messkampagne liefert einzigartige Daten über Wetterextreme

Wasserwirtschaft. - 112(2022)2-3, 80-81


PD Dr. Jörg Lewandowski; Dr. Tobias Goldhammer; Anja Höhne; Lukas Kleine; Anna Lena Kronsbein; PD Dr. Thomas Mehner; Birgit Maria Müller; PD Dr. Martin Pusch; Christoph Josef Reith; Hanna Schulz; Dr. Stephanie Spahr

Ansiedlung von industriellen Großprojekten in wasserarmen Gebieten: [wwt Modernisierungsreport 2021/2022]

Wasserwirtschaft - Wassertechnik. - (2021)Sonderausgabe Modernisierungsreport 2021/2022, 32-39

Spahr, S., Teixido, M., Sedlak, D. L., Luthy, R. G. Hydrophilic trace organic contaminants in urban stormwater: Occurrence, toxicological relevance, and the need to enhance green stormwater infrastructure. Environmental Science: Water Research and Technology, 2020, 6, 15-44.

Ashoori., N., Teixido, M., Spahr, S., LeFevre, G. H., Sedlak, D. L., Luthy, R. G. Evaluation of pilot-scale biochar-amended woodchip bioreactors to remove nitrate, metals, and trace organic contaminants from urban stormwater runoff. Water Research, 2019, 154, 1-11.

Spahr, S., von Gunten, U., Hofstetter, T. B. Carbon, hydrogen, and nitrogen isotope fractionation trends in N-nitrosodimethylamine reflect the formation pathway during chloramination of tertiary amines. Environmental Science and Technology, 2017, 51 (22), 13170-13179.

Spahr, S., Cirpka, O. A., von Gunten, U., Hofstetter, T. B. Formation of N-nitrosodimethylamine during chloramination of secondary and tertiary amines: Role of molecular oxygen and radical intermediates. Environmental Science and Technology, 2017, 51 (1), 280-290.

Spahr, S., Bolotin, J., Schleucher, J., Ehlers, I., von Gunten, U., Hofstetter, T. B. Compound-specific carbon, nitrogen, and hydrogen isotope analysis of N-nitrosodimethylamine in aqueous solutions. Analytical Chemistry, 2015, 87(5), 2916-2924.

Hofstetter, T. B., Bolotin, J., Pati, S. G., Skarpeli-Liati, M., Spahr, S., Wijker, R. S. Isotope effects as new proxies for organic pollutant transformation. CHIMIA International Journal for Chemistry, 2014, 68(11), 788-792.

Huntscha, S., Hofstetter, T. B., Schymanski, E. L., Spahr, S., Hollender, J. Biotransformation of benzotriazoles: Insights from transformation product identification and compound-specific isotope analysis. Environmental Science and Technology. 2014, 48(8), 4435-4443.

Spahr, S., Huntscha, S., Bolotin, J., Maier, M. P., Elsner, M., Hollender, J., Hofstetter, T. B. Compound-specific isotope analysis of benzotriazole and its derivatives. Analytical and Bioanalytical Chemistry. 2013, 405(9), 2843-2856.

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