Staff

Ahmed Tlili

Dr. Ahmed Tlili

Deputy head of department

Department Environmental Toxicology

About Me

My expertise is in microbial community ecotoxicology. Community ecotoxicology arose from the need to increase ecological relevance of ecotoxicological risk assessment by describing patterns in community structure in response to pollutants exposures and explaining the underlying mechanisms for these patterns. Being composed of many species displaying different sensitivities to pollutants, microbial communities reflect to some extent the biological variability and complexity in ecosystems.

My specific research interest is in using freshwater biofilms as a biological interface to monitor effects of environmental pollutants, such as industrial chemicals, personal care products, metals and engineered nanoparticles on stream functioning. I am particularly interested in the establishment of causal relationships between exposure to pollutants and their effects on biofilms by using the pollution-induced community tolerance (PICT) approach. PICT has been proposed as a tool to infer chemical-induced structural impacts and identify the pollutant or mixture of pollutants that affects microbial community structure. Therefore, I am working toward understanding the mechanisms that are responsible of tolerance acquisition at the community level.

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Projects

Particulate plastics (nano- and microplastic particles; size < 5µm) are an extremely persistent pollutant in the environment. As a consequence...
In order to comprehend and in the future be able to predict impacts of chemicals on aquatic biofilm communities, such as periphyton or sediment-associated biofilms...
Diatoms use to assess pesticides pollution in the Swiss watercourses
Interdisciplinary project on biological effects of micropollutants on the periphyton

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Curriculum Vitae

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Publications

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Groh, K., vom Berg, C., Schirmer, K., & Tlili, A. (2022). Anthropogenic chemicals as underestimated drivers of biodiversity loss: scientific and societal implications. Environmental Science and Technology, 56(2), 707-710. doi:10.1021/acs.est.1c08399, Institutional Repository
Tamminen, M., Spaak, J., Tlili, A., Eggen, R., Stamm, C., & Räsänen, K. (2022). Wastewater constituents impact biofilm microbial community in receiving streams. Science of the Total Environment, 807(3), 151080 (8 pp.). doi:10.1016/j.scitotenv.2021.151080, Institutional Repository
Carles, L., Wullschleger, S., Joss, A., Eggen, R. I. L., Schirmer, K., Schuwirth, N., … Tlili, A. (2021). Impact of wastewater on the microbial diversity of periphyton and its tolerance to micropollutants in an engineered flow-through channel system. Water Research, 203, 117486 (14 pp.). doi:10.1016/j.watres.2021.117486, Institutional Repository
Lyautey, E., Bonnineau, C., Billard, P., Loizeau, J. L., Naffrechoux, E., Tlili, A., … Pesce, S. (2021). Diversity, functions and antibiotic resistance of sediment microbial communities from Lake Geneva are driven by the spatial distribution of anthropogenic contamination. Frontiers in Microbiology, 12, 738629 (15 pp.). doi:10.3389/fmicb.2021.738629, Institutional Repository
Batista, D., Tlili, A., Gessner, M. O., Pascoal, C., & Cássio, F. (2020). Nanosilver impacts on aquatic microbial decomposers and litter decomposition assessed as pollution-induced community tolerance (PICT). Environmental Science: Nano, 7(7), 2130-2139. doi:10.1039/D0EN00375A, Institutional Repository
Creusot, N., Casado-Martinez, C., Chiaia-Hernandez, A., Kiefer, K., Ferrari, B. J. D., Fu, Q., … Hollender, J. (2020). Retrospective screening of high-resolution mass spectrometry archived digital samples can improve environmental risk assessment of emerging contaminants: a case study on antifungal azoles. Environment International, 139, 105708 (10 pp.). doi:10.1016/j.envint.2020.105708, Institutional Repository
Tlili, A., Corcoll, N., Arrhenius, Å., Backhaus, T., Hollender, J., Creusot, N., … Behra, R. (2020). Tolerance patterns in stream biofilms link complex chemical pollution to ecological impacts. Environmental Science and Technology, 54(17), 10745-10753. doi:10.1021/acs.est.0c02975, Institutional Repository
Gil-Allué, C., Tlili, A., Schirmer, K., Gessner, M. O., & Behra, R. (2018). Long-term exposure to silver nanoparticles affects periphyton community structure and function. Environmental Science: Nano, 5(6), 1397-1407. doi:10.1039/C8EN00132D, Institutional Repository
Jabiol, J., Cornut, J., Tlili, A., & Gessner, M. O. (2018). Interactive effects of dissolved nitrogen, phosphorus and litter chemistry on stream fungal decomposers. FEMS Microbiology Ecology, 94(10), fiy151 (11 pp.). doi:10.1093/femsec/fiy151, Institutional Repository
Laux, P., Riebeling, C., Booth, A. M., Brain, J. D., Brunner, J., Cerrillo, C., … Luch, A. (2018). Challenges in characterizing the environmental fate and effects of carbon nanotubes and inorganic nanomaterials in aquatic systems. Environmental Science: Nano, 5(1), 48-63. doi:10.1039/c7en00594f, Institutional Repository
Sgier, L., Merbt, S. N., Tlili, A., Kroll, A., & Zupanic, A. (2018). Characterization of aquatic biofilms with flow cytometry. Journal of Visualized Experiments (136), e57655 (9 pp.). doi:10.3791/57655, Institutional Repository
Laux, P., Riebeling, C., Booth, A. M., Brain, J. D., Brunner, J., Cerrillo, C., … Luch, A. (2017). Biokinetics of nanomaterials: the role of biopersistence. NanoImpact, 6, 69-80. doi:10.1016/j.impact.2017.03.003, Institutional Repository
Stamm, C., Burdon, F., Fischer, S., Kienle, C., Munz, N., Tlili, A., … Eggen, R. (2017). Einfluss von Mikroverunreinigungen. Aqua & Gas, 97(6), 90-95. , Institutional Repository
Tlili, A., Jabiol, J., Behra, R., Gil-Allue, C., & Gessner, M. O. (2017). Chronic exposure effects of silver nanoparticles on stream microbial decomposer communities and ecosystem functions. Environmental Science and Technology, 51(4), 2447-2455. doi:10.1021/acs.est.6b05508, Institutional Repository
Tlili, A., Hollender, J., Kienle, C., & Behra, R. (2017). Micropollutant-induced tolerance of in situ periphyton: establishing causality in wastewater-impacted streams. Water Research, 111, 185-194. doi:10.1016/j.watres.2017.01.016, Institutional Repository
Gessner, M. O., & Tlili, A. (2016). Fostering integration of freshwater ecology with ecotoxicology. Freshwater Biology, 61(12), 1991-2001. doi:10.1111/fwb.12852, Institutional Repository
Tlili, A., Cornut, J., Behra, R., Gil-Allué, C., & Gessner, M. O. (2016). Harmful effects of silver nanoparticles on a complex detrital model system. Nanotoxicology, 10(6), 728-735. doi:10.3109/17435390.2015.1117673, Institutional Repository
Tlili, A., Berard, A., Blanck, H., Bouchez, A., Cássio, F., Eriksson, K. M., … Behra, R. (2016). Pollution-induced community tolerance (PICT): towards an ecologically relevant risk assessment of chemicals in aquatic systems. Freshwater Biology, 61(12), 2141-2151. doi:10.1111/fwb.12558, Institutional Repository

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Address

E-Mail: ahmed.tlili@eawag.ch
Phone: +41 58 765 5330
Fax: +41 58 765 5802
Address: Eawag
Überlandstrasse 133
8600 Dübendorf
Office: BU E04

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Research Group

Aquatic Biofilms

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