Tamar Kohn

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tamar.kohn@epfl.ch +41 21 693 08 91 http://lev.epfl.ch

https://orcid.org/0000-0003-0395-6561

Google Scholar ID

EPFL ENAC IIE LEV
GR A0 402 (Bâtiment GR)
Station 2
1015 Lausanne

+41 21 693 08 91
+41 21 693 80 56
Office: GR A0 402
EPFL > ENAC > IIE > LEV

Web site: Web site: https://lev.epfl.ch/

EPFL ENAC IIE LEV
GR A0 402 (Bâtiment GR)
Station 2
1015 Lausanne

+41 21 693 08 91
Office: GR A0 402
EPFL > ENAC > ENAC-SSIE > SSIE-ENS

EPFL ENAC IIE LEV
GR A0 402 (Bâtiment GR)
Station 2
1015 Lausanne

+41 21 693 08 91
Office: GR A0 402
EPFL > ENAC > IIE > IIE-GE

EPFL ENAC IIE LEV
GR A0 402 (Bâtiment GR)
Station 2
1015 Lausanne

+41 21 693 08 91
Office: GR A0 402
EPFL > ENAC > ENAC-DEC > ENAC-DIR

Web site: Web site: https://www.epfl.ch/schools/enac/about/organization/

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Administrative data

Fields of expertise

Disinfection
Waterborne pathogens
Airborne pathogens
Environmental virology
Sanitation and hygiene
Organic micropollutants

Mission

We study the fate of viruses outside the host, mostly in water, sometimes in air.

Biography

2023 - present Full Professor, EPFL
2014 - 2023 Associate Professor, EPFL
2014 - present Adjunct researcher, Eawag
2007 - 2013 Assistant Professor, EPFL
2004 - 2006 Postdoctoral researcher, UC Berkeley
2000 - 2004 PhD, Environmental Engineering, Johns Hopkins University
1999 Diploma, Environmental Sciences, ETHZ

Publications

Infoscience publications

Journal articles (last 3 years)

2025

Conserved specificity of extracellular wastewater peptidases revealed by multiplex substrate profiling by mass spectrometry

N. Wichmann; J. Meibom; T. Kohn; M. Zumstein

Environmental Chemistry Letters. 2025. DOI : 10.1007/s10311-025-01834-7.

Tamar Kohn

Fields of expertise

Mission

Biography

Publications

Infoscience publications

Journal articles (last 3 years)

2025

Conserved specificity of extracellular wastewater peptidases revealed by multiplex substrate profiling by mass spectrometry

Seasonality of cyanobacteria and eukaryotes in Lake Geneva and the impacts of cyanotoxins on growth of the model ciliate Tetrahymena pyriformis

Diversity of lake bacteria promotes human echovirus inactivation

2024

Dependence of aerosol-borne influenza A virus infectivity on relative humidity and aerosol composition

Salt Supersaturation as an Accelerator of Influenza A Virus Inactivation in 1 μL Droplets

Impact of organic compounds on the stability of influenza A virus in deposited 1-μL droplets

The early communication stages between serine proteases and enterovirus capsids in the race for viral disintegration

Stability of influenza A virus in droplets and aerosols is heightened by the presence of commensal respiratory bacteria

Monitoring an Emergent Pathogen at Low Incidence in Wastewater Using qPCR: Mpox in Switzerland

Comparison of Three Viral Nucleic Acid Preamplification Pipelines for Sewage Viral Metagenomics

Waterborne Virus Transport and Risk Assessment in Lake Geneva Under Climate Change

Influence of Amino Acid Substitutions in Capsid Proteins of Coxsackievirus B5 on Free Chlorine and Thermal Inactivation

2023

Inactivation mechanisms of influenza A virus under pH conditions encountered in aerosol particles as revealed by whole-virus HDX-MS

Uptake without inactivation of human adenovirus type 2 by Tetrahymena pyriformis ciliates

Observed Kinetics of Enterovirus Inactivation by Free Chlorine Are Host Cell-Dependent

Selective elimination of enterovirus genotypes by activated sludge and chlorination

The neuraminidase activity of influenza A virus determines the strain-specific sensitivity to neutralization by respiratory mucus

Salt-mediated inactivation of influenza A virus in 1- μl droplets exhibits exponential dependence on NaCl molality

Expiratory Aerosol pH: The Overlooked Driver of Airborne Virus Inactivation

Wastewater monitoring can anchor global disease surveillance systems

Doctoral theses

Inactivation of influenza A virus in expiratory droplets and aerosol particles and the associated physicochemical drivers

Numerical simulation of the fate, transport and public health risks of enteric viruses in Lake Geneva

Toward biocontrol of waterborne pathogens: contributions of protists to virus removal and associated mechanisms

Effect of wastewater treatment and environmental exposure on an enterovirus population

Susceptibility of Enterovirus B strains to disinfectants and heat

Inactivation of waterborne viruses by ozone: Kinetics and mechanisms

Virus transfer at the skin-liquid interface and its associated risks

Genotypic, phenotypic and mechanistic insights into viruses with resistance to common water disinfectants

Virus inactivation mechanisms in human urine and fecal sludge

Mechanistic insight into virus disinfection : influence of virus characteristics, solution composition and surface interactions

Spatio-Temporal Presence of Micropollutants and their Metabolites in Lake Geneva and Susceptibility to Direct and Indirect Photodegradation Processes

Sources, Spreading and Fate of Antibiotic Resistance Genes and Resistant Bacteria in Vidy Bay, Lake Geneva, Switzerland

Virus Inactivation during Water Treatment : the Role of Virus Aggregation and the Disinfection Potential of Sunlight

Virus Inactivation by Homogeneous and Heterogeneous Fenton-like Processes

Teaching & PhD

Teaching

PhD Students

Past EPFL PhD Students

Courses

Introduction to environmental engineering

Environmental chemistry

All postal addresses and positions