Impact of oxidation and biodegradation on the most commonly used polycyclic aromatic hydrocarbon (PAH) diagnostic ratios: Implications for the source identifications

Autor: Pierre Faure, Laurence Mansuy-Huault, Coralie Biache
Přispěvatelé: Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Environmental Engineering
Health
Toxicology and Mutagenesis
Polycyclic aromatic hydrocarbon
Combustion
complex mixtures
GEOF
Gas Chromatography-Mass Spectrometry
Coking plant soil
chemistry.chemical_compound
Isomerism
Oxidation
medicine
otorhinolaryngologic diseases
Soil Pollutants
Environmental Chemistry
Coal
Polycyclic Aromatic Hydrocarbons
Coal tar
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces
environment
Coke
Waste Management and Disposal
chemistry.chemical_classification
Anthracene
business.industry
technology
industry
and agriculture
PAH
Biodegradation
Contamination
Pollution
6. Clean water
respiratory tract diseases
Biodegradation
Environmental
chemistry
13. Climate action
Environmental chemistry
Soil water
[SDE]Environmental Sciences
Environmental Pollutants
Environmental Pollution
business
Diagnostic ratio
[CHIM.OTHE]Chemical Sciences/Other
Oxidation-Reduction
medicine.drug
Zdroj: Journal of Hazardous Materials
Journal of Hazardous Materials, Elsevier, 2014, 267, pp.31-39. ⟨10.1016/j.jhazmat.2013.12.036⟩
ISSN: 0304-3894
1873-3336
Popis: International audience; Based on the isomer stability during their formation, PAH diagnostic ratios have been extensively used to determine PAH contamination origin. Nevertheless, it is known that these isomers do not present the same physicochemical properties and that reactions occurring during the transport from an atmospheric source induce changes in the diagnostic ratios. Yet, little is known about reactions occurring in soils contaminated by other sources such as coal tar and coal. Innovative batch experiments of abiotic oxidation and microbial incubations were performed to discriminate independently the influence of these two major processes occurring in soils on the diagnostic ratios of major PAH sources. Three samples were studied, a coking plant soil and two major PAH sources in this soil, namely coal and coal tar. The combustion signature of the coking plant soil showed the major influence of coal tar in the soil sample composition. Some of these ratios were drastically affected by oxidation and biodegradation processes inducing a change in the source signature. The coal tar signature changed to petrogenic source after oxidation with the anthracene/(anthracene+ phenanthrene) ratio. According to this ratio, the initial petrogenic signature of the coal changed to a combustion signature after the biodegradation experiment.
Databáze: OpenAIRE
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