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Publications associées (10)

Year-long variability of polycyclic aromatic hydrocarbons (PAHs) and their contribution on winter intense pollution events in the urban environment of Athens, Greece

Polycyclic aromatic hydrocarbons (PAHs) are organic pollutants with proven mutagenic and carcinogenic potential that originate from incomplete combustion, and partition to fine particulate matter. Nitro-PAHs & oxy-PAHs are oxidation products of PAHs with i ...

2021

Re-assessing the Formation of N-nitrosamines during Chloramination of Various Nitrogenous Compounds using Specific and Total N-nitrosamines Analysis

Urs von Gunten, Florian Frédéric Vincent Breider, Andrea Piazzoli

N-nitrosamines (NOAs) are potent carcinogenic and mutagenic compounds that can be present in water, biological fluids, food, consumer products and cigarette smoke. Several studies have shown that the formation of NOAs in water can arise from the reactions ...

2018

MEMBRO3X, a Novel Combination of a Membrane Contactor with Advanced Oxidation (O-3/H2O2) for Simultaneous Micropollutant Abatement and Bromate Minimization

Urs von Gunten

Ozonation is a water treatment process for disinfection and/or micropollutant abatement. However, ozonation of bromide-containing water leads to bromate (BrO3-) formation, a potential human carcinogen. A solution for mitigating BrO3- formation during abate ...

Amer Chemical Soc2017

Properties of Enzymes Involved in Tetrachloroethene Respiration

Géraldine Florence Buttet

Tetrachloroethene (PCE) pollution threatens nature and human health due to its toxic and carcinogenic potential. Due to industrial activities, large amounts of PCE were discharged into the environment over the last decades and represent one of major ground ...

EPFL2017

Effect of operational and water quality parameters on conventional ozonation and the advanced oxidation process O-3/H2O2: Kinetics of micropollutant abatement, transformation product and bromate formation in a surface water

Urs von Gunten, Juliane Hollender

The efficiency of ozone-based processes under various conditions was studied for the treatment of a surface water (Lake Zurich water, Switzerland) spiked with 19 micropollutants (pharmaceuticals, pesticides, industrial chemical, X-ray contrast medium, swee ...

Elsevier2017

Assessment of occupational exposure to pesticides with multi-class pesticide residues analysis in human hairs using a modified QuEChERS extraction method, case study of gardening areas in Burkina Faso

Luiz Felippe De Alencastro, Edouard René Gilbert Lehmann, Christelle Oltramare, Jean-Jacques Stéphane Nfon Dibie

Pesticides have been proved to potentially cause multiple adverse health effects. The present study is part of a global project focusing on pesticides impacts on the environment and human health in gardening in Burkina Faso. In absence of existing monitori ...

2016

Development of mutagenicity during degradation of N-nitrosamines by advanced oxidation processes

Urs von Gunten, Kristin Schirmer, Silvio Canonica

Development of mutagenicity of five N-nitrosamines (N-nitrosodimethylamine (NDMA), N-nitrosodiethylamine (NDEA), N-nitrosodi-n-propylamine (NDPA), N-nitrosopyrrolidine (NPYR) and N-nitrosodiphenylamine (NDPhA)) was investigated during oxidative processes i ...

Elsevier2014

Functional diversity of reductive dehalogenases in a bacterial consortium degrading chloroethenes

Christof Holliger, Julien Maillard, Géraldine Florence Buttet, Sébastien Keller

Chlorinated hydrocarbon pollution threatens nature and human health due to its toxic and carcinogenic potential. Enrichment cultures were investigated for the bioremediation potential of tetrachloroethene (PCE). This process is based on bacterial anaerobic ...

2014

Bromate in drinking water a problem in Switzerland?

Urs von Gunten

Ozonation of bromide-containing waters causes the formation of bromate which is considered to be potentially carcinogenic. An investigation in Switzerland on water works using ozone (85) has shown that the new drinking water standard of 10 mug/L for bromat ...

2003

From toxic releases to damages on human health

Pierre Crettaz

Life Cycle Assessment (LCA) is a tool developed to evaluate the environmental impact of a product or a system. After a decade of research in the LCA field, significant progress has been achieved but methodologies for the assessment of toxicological impacts ...

EPFL2001

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