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Maureen Le Bars

As seen in: ACS Publications
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Articles

Time-Resolved Dynamics of Mercury Uptake, Methylmercury Production, and Export by Pseudodesulfovibrio hydrargyri BerOc1 at Different Mercury Concentrations

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By Maureen Le Bars, Mathilde Monperrus, Sophie Barrouilhet, Melina Petrel
| ACS Publications
1. Introduction Click to copy section linkSection link copied! Methylmercury (MeHg), a potent neurotoxin, is produced from inorganic divalent mercury (Hg(II)) by certain anaerobic microorganisms. These known Hg(II) methylators include sulfate-reducing, iron-reducing, syntrophic Desulfobacterota, methanogens, and Firmicutes. (1−3) Recent metagenomic analyses (4−6) suggest that the diversity of putative methylators is much higher than currently known, including some microaerophilic microorganisms.
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Bulk and Mapping Speciation Analyses Unveil the Pattern and Heterogeneity of Cu Species during Organic Waste Treatment

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By Emmanuel Doelsch, Maureen Le Bars, Barbara Etschmann, Thiago Augusto Formentini
| dx.doi.org
Occurrence, Fate, and Transport of Aquatic and Terrestrial ContaminantsJuly 29, 2024 * Maureen Le Bars Soil Chemistry Group, Institute of Biogeochemistry and Pollutant Dynamics, Department of Environmental Systems Science, ETH Zurich, CHN, Universitätstrasse 16, Zurich CH-8092, Switzerland Barbara Etschmann School of Earth, Atmosphere and Environment, Monash University, Clayton, Victoria 3800, Australia Thiago Formentini CIRAD, UPR Recyclage et Risque, Montpellier F-34398, France...
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Drastic Change in Zinc Speciation during Anaerobic Digestion and Composting: Instability of Nanosized Zinc Sulfide

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By Clement Levard, Maureen Le Bars, Samuel Legros, Perrine Chaurand
| American Chemical Society
Zinc (Zn) is a potentially toxic trace element that is present in large amounts in organic wastes (OWs) spread on agricultural lands as fertilizer. Zn speciation in OW is a crucial parameter to understand its fate in soil after spreading and to assess the risk associated with agricultural recycling of OW. Here, we investigated changes in Zn speciation from raw OWs up to digestates and/or composts for a large series of organic wastes sampled in full-scale plants.
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