title: Assessing the transfer of pentachlorophenol through soil columns using 13[C]isotope.
abstract: The transfer of organic pollutants was studied through soil columns using 13[C]-labelled pentachlorophenol (PCP) as a model compound. The organic carbon content and the 13[C]/12[C] ratio were measured in two soil sections, 0-3 cm and 3-6 cm, and in percolated water using an Elemental Analyser coupled with a Magnetic Mass Sector. The mass balance of carbon was evaluated and the amount of PCP was calculated in each compartment of the soil-water systems. The results show that more than 80% of the PCP-derived 13[C] remained in the upper layer of the soil column. Approximately 20% was transferred to the lower soil layer, and less than 1% was found in the water leachates. The 13[C]-labelled tracers may thus be used as an alternative to radioactive compounds to follow the fate of organic pollutants in soil and water under field conditions.
authors.affiliation: UMR GéoSol-Microbiologie des Sols INRA A111, Université de Bourgogne, Centre des Sciences de la Terre, Dijon, France. sdousset@u-bourgogne.fr
authors.forename: S
authors.initials: S
authors.lastname: Dousset
authors.forename: J
authors.initials: J
authors.lastname: Leveque
authors.forename: S
authors.initials: S
authors.lastname: Jault
authors.forename: M J
authors.initials: MJ
authors.lastname: Milloux
authors.forename: F
authors.initials: F
authors.lastname: Andreux
mesh_terms: D002250:Carbon Radioisotopes; D010416:Pentachlorophenol / Q000737:chemistry*; D015203:Reproducibility of Results; D012989:Soil Pollutants / Q000032:analysis*; D012990:Soil Pollutants, Radioactive / Q000032:analysis; D012995:Solubility
chemical_list: D002250:Carbon Radioisotopes; D012989:Soil Pollutants; D012990:Soil Pollutants, Radioactive; D010416:Pentachlorophenol