Modélisation d’une pollution de sol en hydrocarbures lourds C10-C50 par le Modèle d’écrêtage

International audienc

Improved Geostatistical Estimation of an Hydrocarbon Pollution in Urban Soils. CSME-SARCLE Bruxelles, 2015.

International audienc

Les PCB dans les sols : comment les éliminer?

National audienc

Prokaryotic, Microeukaryotic, and Fungal Composition in a Long-Term Polychlorinated Biphenyl-Contaminated Brownfield

International audiencePolychlorinated biphenyls (PCBs) are recognized as persistent organic pollutants and accumulate in organisms, soils, waters,and sediments, causing major health and ecological perturbations. Literature reported PCB bio-transformation by fungi andbacteria in vitro, but data about the in situ impact of those compounds on microbial communities remained scarce whilebeing useful to guide biotransformation assays. The present work investigated for the first time microbial diversity from thethree-domains-of-life in a long-term contaminated brownfield (a former factory land). Soil samples were ranked according totheir PCB concentrations, and a significant increase in abundance was shown according to increased concentrations. Microbialcommunities structure showed a segregation from the least to the most PCB-polluted samples. Among the identifiedmicroorganisms, Bacteria belonging to Gammaproteobacteria class, as well as Fungi affiliated to Saccharomycetes classor Pleurotaceae family, including some species known to transform some PCBs were abundantly retrieved in the highlypolluted soil samples