Florian Frédéric Vincent Breider

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This work presents the changing abundance of surface functional groups (SFGs) on polystyrene (PS) upon weathering within one or a few molecular monolayers from a molecular point of view. PS particles were aged by exposing it to a gas flow of typically (5 % ...

Nonmycorrhizal root-colonizing fungi are key determinants of plant growth, driving processes ranging from pathogenesis to stress alleviation. Evidence suggests that they might also facilitate host access to soil nutrients in a mycorrhiza-like manner, but t ...

Tire and road wear particles (TRWP) are produced by the friction between the tires and road and consist of polymer-containing tread with pavement encrustations. There are many data gaps remaining regarding their fate and potential toxicological impact on the aquatic and terrestrial environment. This study aimed to (i) investigate the solubilization and bioaccessibility of 11 tire-associated chemicals into fish gastric and intestinal fluids using an in vitro digestion model. The effect of food co-ingestion o

The potential impact of Tire and Road Wear Particles (TRWP) on aquatic organisms has recently gained attention since the occurrence of TRWP in the aquatic environment has been observed in surface water and sediments of numerous regions. Moreover, the ingestion of TRWP by aquatic species, including fish, has recently been demonstrated. However, data regarding the bioavailability and toxicity of contaminants associated with these particles are still lacking. This study aimed (i) to characterize the solubiliza

In the Mekong delta, inland-based shrimp breeding is a profitable activity requiring significant inflow of high quality freshwater. In turn, discharge of substantial loads of poor quality effluents causes salinization and eutrophication of adjacent water bodies and favors the advent of disease outbreaks. Therefore, development of aquaculture systems targeting water treatment and reuse has become the cornerstone for long-term sustainability. The project focused on the implementation of a continuous water rec

Carbamazepine (CBZ) and Hg are widespread and persistent micropollutants in aquatic environments. Both pollutants are known to trigger similar toxicity mechanisms, e.g. reactive oxygen species (ROS) production. Here, their effects were assessed in the zebr ...

N-nitrosamines are formed during different industrial processes and are of significant concern due to their carcinogenic and mutagenic properties. This study reports concentrations of N-nitrosamines in eight different industrial wastewater treatment plants ...

The potential impact of Tire and Road Wear Particles (TRWP) on aquatic organisms has recently gained attention since the occurrence of TRWP in the aquatic environment has been demonstrated in surface water and sediments of numerous regions. However, data regarding the bioavailability and toxicity of contaminants associated with these particles are still lacking. Several metals enter in the composition of tires including Zinc, used as a catalyst during the vulcanization process of rubber. This study aimed (i

Many studies have reported that hydrophobic organic contaminants have the ability to sorb on microplastics in aquatic ecosystem via different mechanisms of sorption. However, a lack of studies investigating desorption of such contaminants in organism fluids has been disclaimed. The bioavailability of potential risk-compounds for aquatic organisms has to be assessed. It has been largely reported that adsorption onto microplastics is directly linked with hydrophobicity property of contaminants; the more hydro

The contamination of water resource and food chain by persistent organic pollutants (POPs) constitutes a major environmental and human health concern worldwide. The aim of this study was to investigate the levels of POPs in irrigation water, soil and in Am ...

Studies focused only on surface water may underestimate microplastic abundance in aquatic environments. This was the first survey to investigate the vertical (surface, intermediate, and bottom waters) distribution and composition of microplastics (MPs) in ...

Oxidative stress can contribute to the development of diseases, and may originate from exposures to toxicants commonly found in air pollution and cigarette smoke such as polycyclic aromatic hydrocarbons (PAHs) and volatile organic compounds (VOCs). Yet, as ...

In Switzerland, surface waters are protected by the Swiss Water Protection Ordinance (OEaux) which stipulates that the water quality shall be such that: "the water, suspended matter and sediments contain no persistent synthetic substances to ensure the protection of aquatic life". Current sediment quality assessment in Switzerland mainly consists of physico-chemical analyses, primarily of metals and to a lesser extent polycyclic aromatic hydrocarbons and polychlorinated biphenyls. Sediments, however, may ac

This work presents the changing abundance of surface functional groups (SFG) on polystyrene (PS) upon weathering within one or a few molecular monolayers from a molecular point of view. PS particles were aged by exposing them to a gas flow of typically (5%) O3 in air (PSO3), UV radiation using a solar simulator under controlled conditions in the laboratory (PSSS) and by exposing PS samples to the water/air interface immerged in a freshwater lake for 2 months (PSL). The chemical composition of the interface

Aquaculture activities are steadily expanding in Vietnam, covering an estimated 700,000 ha, with 89% of these culture ponds located in the Mekong Delta. Since 2009, large-scale bacterial epidemics have spread in response to this intensive cultivation. Antibiotics, even those considered as a last resort, have only partially mitigated this problem. In turn, the side effects of the massive use of these chemicals include the appearance of mobile genetic elements associated with antibiotic resistance genes (ARGs

As an important connection of terrestrial and marine ecosystems, rivers input multitudinous (micro)plastics into the oceans. However, comparisons of field and estimated riverine inputs of (micro)plastics and contributions of multiple parameters are limited ...

N-Nitrosamines are potent mutagens and carcinogens that can be formed during oxidative water treatment. This study describes a novel method for the determination of total N-nitrosamines by UV-photolysis and subsequent chemiluminescence detection of nitric ...

Tire wear particles (TWP) are produced due to abrasion and, consequently, deposited on the roadside where they are transferred to the surrounding soil and surface waters. Despite the growing interest on TWP and related chemicals' effects on aquatic organisms, their potential interaction with periphytic biofilm communities is not well understood. As these complex assemblages of microorganisms form the base of aquatic food webs, it is critical to assess the potential impact of tire particles to these communit

Quaternary ammonium compounds (QACs) are among the most used disinfection agents in consumer products and in industrial applications. Because of their poor biodegradabil ity, after use, they will persist in technical and natural aquatic systems at sub - inhibitory concentrations. Implications of QACs on the development of antimicrobial resistance was detected in several studies, however, the effect of a constant sub - inhibito ry concentration on the development of bacterial resistance remains unknown. The

The pollution assessment and the evaluation of potential risks in the Atlantic Coastal Region of the Democratic Republic of the Congo are still very limited. Consequently, the present study investigates for the first time the concentrations of heavy metals ...

Florian Frédéric Vincent Breider

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Natural and simulated weathering of polystyrene: A molecular view of the polymeric interface

Nutrient Availability Does Not Affect Community Assembly in Root-Associated Fungi but Determines Fungal Effects on Plant Growth

Bioaccessibility, bioaccumulation and effects of tire-associated chemicals for aquatic and soil-dwelling organisms

In-vitro digestion of Tire and Road Wear Particles: Bioavailability of metals and Polycyclic Aromatic Hydrocarbons

Implementation of a constructed wetland for the sustainable treatment of water in shrimp farming activities, Mekong delta, Vietnam

Metabolic, cellular and defense responses to single and co-exposure to carbamazepine and methylmercury in Dreissena polymorpha

A Survey of Industrial N-nitrosamine Discharges in Switzerland

Potential bioavailability of inorganic compounds from Tire and Road Wear Particles to fish in simulated gastric and intestinal fluids

Bioavailability of steroid hormones sorbed on microplastics for aquatic organisms through biological fluids

Occurrence of organic micropollutants and human health risk assessment based on consumption of Amaranthus viridis, Kinshasa in the Democratic Republic of the Congo

Insights into the Horizontal and Vertical Profiles of Microplastics in a River Emptying into the Sea Affected by Intensive Anthropogenic Activities in Northern China

Associations between urinary biomarkers of oxidative stress and biomarkers of tobacco smoke exposure in smokers

Monitoring of Priority Substances in Sediments of Switzerland

Natural and Artificial Weathering of Polystyrene: A Molecular View of the Polymeric Interface

Seasonal and spatial variability of antibiotic resistance genes and Class I integrons in the rivers of the Mekong delta, Vietnam

Quantified Effects of Multiple Parameters on Inputs and Potential Sources of Microplastics from a Typical River Flowing into the Sea

Quantification of Total N-Nitrosamine Concentrations in Aqueous Samples via UV-Photolysis and Chemiluminescence Detection of Nitric Oxide

Cryogenically milled tire tread induces functional and structural changes in natural periphyton communities

Resistance to disinfection agents: Adaptation of P. aeruginosa to sub inhibitory concentrations of quaternary ammonium compounds (QACs)

Heavy metals and persistent organic pollutants contamination in river, estuary, and marine sediments from Atlantic Coast of Democratic Republic of the Congo