• Risk Assessment and Risk Management of Chemicals (ETX9, Master Ecotoxicology). 
• Environmental Risk Evaluation (ETX9, Master Ecotoxicology).
• Tutor for the EU Better Training for Safer Foods (BTSF) Initiative “Training Course on Evaluation and Authorization Procedures for Plant Protection Products - Ecotoxicological risk assessment for the terrestrial and aquatic environment”.
• Supervisor for > 20 Diploma and Master theses.

• Aquatic ecotoxicology
• Regulatory Risk Assessment 
• Pesticide Exposure and Risk Assessment
• Pesticide Risk Mitigation
• Global Agriculture Assessment
• Meta-Analyses

• Effects of anthropogenic stressors on the biodiversity and ecosystem functioning of small streams and their riparian areas in Germany.
• Meta-analysis of neonicotinoid insecticides in global agricultural surface waters – Exposure, risks and regulatory challenges.
• Macroscale evaluation of agricultural pesticide risks for aquatic and terrestrial ecosystems under change.
• Development and application of the total applied toxicity (TAT) approach for the environmental risk assessment of pesticides (US, EU, global scale).
• Risks of pesticide use for tropical ecosystems and aquatic and terrestrial biodiversity in Costa Rica – Exposure, effect and risk assessment.
• Pesticides in nature protection areas in Germany – risks for aquatic biodiversity and public water supplies.
• Anthropogenic pollution and self-cleaning capacities of small streams (EU ECOSERV Project).
• Macro-Ecotoxicology: Spatial and causal implications of insecticide contamination in surface waters (DFG Project).
• Meta-analysis of global insecticide concentrations in agricultural surface waters. (DFG Project). more Info

• Research Leader "Ecosystem Pollution Dynamics" of the Eusserthal Ecosystem Research Station (EERES), University Koblenz-Landau (July 2017 – present).
• Postdoctoral Researcher at the Institute for Environmental Sciences, University Koblenz-Landau, Germany (December 2015 – present).
• Doctoral degree at the University Koblenz-Landau, Germany (December 2015). Title of dissertation: “A Meta and Risk-Analysis of Global Insecticide Contamination of Agricultural Surface Waters“.
• PhD study (October 2010 - December 2015); Institute for Environmental Sciences, University Koblenz-Landau.
• Diploma Thesis (September 2010): “Pesticide Risk Mitigation by Vegetated Treatment Systems: A Meta-analysis“.
• Study of Environmental Sciences (April 2002 until September 2010), University Koblenz-Landau.
• Study of Energy and Environmental Engineering (October 2001 until March 2002), Technical University Hamburg-Harburg.

• Herrmann, LZ.; Bub, S.; Wolfram, J.; Stehle, S.; Petschick, LL.; Schulz, R. (2023) Large monitoring datasets reveal high probabilities for intermittent occurrences of pesticides in European running waters. ENVIRONMENTAL SCIENCES EUROPE, 35 (1). DOI Link


• Brühl, C. A. Andres, M. A. Echeverría-Sáenz, S. Bundschuh, M. Knäbel, A. Mena, F. Petschick, L. L. Ruepert, C. Stehle, S. (2023) Pesticide use in banana plantations in Costa Rica–a review of environmental and human exposure, effects and potential risks. Environment International Volume 174, 107877. DOI Link


• Manfrin, A., Schirmel, J., Mendoza-Lera, C., Ahmed, A., Bohde, R., Brunn, M., Brühl, C.A., Buchmann, C., Bundschuh, M., Burgis, F., Diehl, D., Entling, M.H., Ganglo, C., Geissler, S., Gerstle, V., Girardi, J.P., Graf, T., Huszarik, M., Jamin, J., Joschko, T.J., Jungkunst, H.F., Knäbel, A., Kolbenschlag, S., Lorke, A., Muñoz, K., Ogbeide, C., Osakpolor, S.E., Pietz, S., Riess, K., Roodt, A.P., Rovelli, L., Röder, N., Rösch, V., Schaumann, G.E., Schäfer, R.B., Schmitt, T., Schmitz, D., Schwenk, K., Stehle, S., , R. (2023) SystemLink - Propagation of in-stream environmental alterations to adjacent terrestrial ecosystems Limnology and Oceanography Bulletin, DOI Link


• Wolfram, J.; Bub, S.; Petschick, L. L.; Schemmer, A.; Stehle, S.; Schulz, R. (2023) Pesticide occurrence in protected surface waters in nature conservation areas of Germany. In: Sci Total Environ 858, S. 160074. DOI Link


• Stehle, Sebastian; Ovcharova, Viktoriia; Wolfram, Jakob; Bub, Sascha; Herrmann, Larissa Zoe; Petschick, Lara Luisa; Schulz, Ralf (2023) Neonicotinoid insecticides in global agricultural surface waters - Exposure, risks and regulatory challenges. In: The Science of the total environment 867, S. 161383. DOI Link


• Bub, S.; Wolfram, J.; Petschick, L. L.; Stehle, S.; Schulz, R. (2023) Trends of total applied pesticide toxicity in German agriculture. In: Environmental Science and Technology. DOI Link


• Stehle, S.; Manfrin, A.; Feckler, A.; Graf, T.; Joschko, T. J.; Jupke, J.; Noss, C.; Rösch V.; Schirmel, J.; Schmidt, T.; Zubrod, JP.; Schulz, R. (2022) Structural and functional development of twelve newly established floodplain pond mesocosms. In: Ecology and evolution 12, e8674. DOI Link


• Wolfram, J.; Petschick, L. L.; Bub, S.; Stehle, S.; Schulz, R. (2021) Water quality and ecological risks in European surface waters – Monitoring improves while water quality decreases. In: Environment International 152, S. 106479. DOI Link


• Schulz, R.; Bub, S.; Petschick, L. L.; Stehle, S.; Wolfram, J. (2021) Applied pesticide toxicity shifts toward plants and invertebrates, even in GM crops. In: Science 372, S. 81–84. DOI Link


• Heinemann, N.; Bub, S.; Wolfram, J.; Stehle, S.; Petschick, L. L.; Schulz, R. (2020) A compendium of chemical class and use type open access databases. In: Data 5, S. 114. DOI Link


• Petschick, L. L.; Bub, S.; Wolfram, J.; Stehle, S.; Schulz, R. (2019) Modeling regulatory threshold levels for pesticides in surface waters from effect databases. In: Data 4, S. 150. DOI Link


• Stehle, S.; Bline, A.; Bub, S.; Petschick, L.; Wolfram, J.; Schulz, R. (2019) Aquatic pesticide exposure in the U.S. as a result of non-agricultural uses. In: Environment International 133, S. 105234. DOI Link


• Wolfram, J.; Petschick, L. L.; Bub, S.; Stehle, S.; Schulz, R. (2019) Insecticide risk in United States surface waters: drivers and spatiotemporal modeling. In: Environmental Science & Technology 53, S. 12071–12080. DOI Link


• Zubrod, J. P.; Bundschuh, M.; Arts, G.; Brühl, C. A.; Imfeld, G.; Knäbel, A.; Payraudeau S.; Rasmussen, J. J.; Rohr, J.; Scharmüller, A.; Smalling, K.; Stehle, S.; Schulz, R.; Schäfer, R. (2019) Fungicides – an overlooked pesticide class? In: Environmental Science & Technology 53, S. 3347–3365. DOI Link


• Bub, S.; Wolfram, J.; Stehle, S.; Petschick, L. L.; Schulz, R. (2019) Graphing Ecotoxicology: The MAGIC graph for linking environmental data on chemicals. In: Data 4, S. 34. DOI Link


• Wolfram, J.; Stehle, S.; Bub, S.; L.L., Petschick.; Schulz, R. (2018) Meta-analysis of Insecticides in U.S. Surface Waters: Status and Future Implications. In: Environmental Science & Technology 52, S. 14452–14460. DOI Link


• Stehle, S.; Bub, S.; Schulz, R. (2018) Compilation and analysis of global surface water concentrations for individual insecticide compounds. In: Sci Total Environ 639, S. 516–625. DOI Link


• Wieczorek, M. V.; Bakanov, N.; Bilancia, D.; Szöcs, E.; Stehle, S.; Bundschuh, M.; Schulz, R. (2018) Structural and functional effects of a short-term pyrethroid pulse exposure on invertebrates in outdoor stream mesocosms. In: Sci Total Environ 610-611, S. 810–819. DOI Link


• Stehle, S.; Schulz, R. (2018) The impact of pesticides on our freshwater resources. In: D. A. DellaSala und M. I. Goldstein (Hg.): The Encyclopedia of the Anthropocene, Bd. 5. Oxford: Elsevier (Reference Module in Earth Systems and Environmental Sciences), S. 127–132, DOI Link


• Knäbel, A.; Stehle, S.; Scheringer, M.; Schulz, R. (2016) Response to comment on ""Aquatic Exposure Predictions of Insecticide Field Concentrations Using a Multimedia Mass-Balance Model"". In: Environ Sci Technol 50, S. 13171–13172. DOI Link


• Stehle, S.; Schulz, R. (2016) Global insecticide surface water contamination assessment: BECT´s contribution in the last five decades. In: B Environ Contam Tox 96 (5), S. 563–564. DOI Link


• Knäbel, A.; Scheringer, M.; Stehle, S.; Schulz, R. (2016) Aquatic Exposure Predictions of Insecticide Field Concentrations Using a Multimedia Mass-Balance Model. In: Environ Sci Technol 50, S. 3721–3728. DOI Link


• Stehle, S.; Dabrowski, J. M.; Bangert, U.; Schulz, R. (2016) Erosion rills offset the efficacy of vegetated buffer strips to mitigate pesticide exposure in surface waters. In: Sci Total Environ 545-546, S. 171–183. DOI Link


• Stehle, S.; Schulz, R. (2015) Pesticide Authorization in the EU - Environment Unprotected? In: Environmental Science and Pollution Research 22, S. 19632–19647. DOI Link


• Stehle, S.; Schulz, R. (2015) Agricultural insecticides threaten surface waters at the global scale. In: Proceedings of the National Academy of Sciences of the United States of America 112, S. 5750–5755. DOI Link


• Stehle, S.; Knaebel, A.; Schulz, R. (2013) Probabilistic Risk Assessment of Insecticide Concentrations in Agricultural Surface Waters: A Critical Appraisal. In: Environmental Monitoring and Assessment 185 (8), S. 6295–6310. DOI Link


• Knäbel, A.; Stehle, S.; Schäfer, R. B.; Schulz, R. (2013) Response to the Comment on Regulatory FOCUS Surface Water Models fail to predict insecticide concentrations in the field. In: Environ Sci Technol 47, S. 1179–1180. DOI Link


• Knäbel, A.; Stehle, S.; Schäfer, R. B.; Schulz, R. (2013) Response to the Comment on Regulatory FOCUS Surface Water Models fail to predict insecticide concentrations in the field. In: Environ Sci Technol 47 (6), S. 3017–3018. DOI Link


• Knäbel, A.; Stehle, S.; Schäfer, R. B.; Schulz, R. (2012) Regulatory FOCUS Surface Water Models fail to predict insecticide concentrations in the field. In: Environ Sci Technol 46, S. 8397–8404. DOI Link


• Stehle, S.; Elsaesser, D.; Gregoire, C.; Imfeld, G.; Niehaus, E.; Passeport, E.; Payraudeau, S.; Schäfer, R.; Tournebize, J.; Schulz, R. (2011) Pesticide risk mitigation by vegetated treatment systems: A Meta-analysis. In: J Environ Qual 40 (4), S. 1068–1080. DOI Link


• Schulz, R.; Stehle, S.; Elsaesser, D.; Matezki, S.; Müller, A.; Neumann, M.; Ohliger, R.; Wogram, J.; Zenker, K. (2009) Geodata-based Probabilistic Risk Assessment and Management of Pesticides in Germany, a Conceptual Framework. In: Integr Environ Asses 5 (1), S. 69–79. DOI Link


• Schulz, R.; Stehle, S. (2008) Synthetic Pyrethroids in Agricultural Surface Waters: Exposure, Effects, and Risk Mitigation. In: Synthetic Pyrethroids: Occurrence and Behavior in Aquatic Environments (pp. 171-201). J. Gan, F. Spurlock, P. Hendley and D. P. Weston (eds.). American Chemical Society Symposium Series 991. Washington D.C., Oxford University Press. DOI Link

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