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@ARTICLE{Squaris:44720,
      author       = {Séquaris, J.-M. and Lavorenti, A. and Burauel, P.},
      title        = {{E}quilibrium partitioning of 14{C}-benzo(a)pyrene and
                      14{C}-benazolin between fractionated phases from an arable
                      topsoil},
      journal      = {Environmental pollution},
      volume       = {135},
      issn         = {0269-7491},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-44720},
      pages        = {491 - 500},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Equilibrium partitioning of hydrophobic
                      (14)C-benzo(a)pyrene and hydrophilic (14)C-benazolin between
                      fractionated phases from an arable topsoil of Merzenhausen
                      (Germany) was investigated. Topsoil samples were collected
                      from lysimeters which were incubated with different residual
                      crops. A physical soil fractionation based on sedimentation
                      and centrifugation steps was performed after water
                      extraction. Four soil phases were obtained designated
                      sediment (SED) phase (>20 microm), microaggregate (MA) phase
                      (2 microm-20 microm), colloid (COL) phase (<2 microm) and
                      electrolyte (EL) phase. The distribution of
                      (14)C-benzo(a)pyrene, (14)C-benazolin and organic carbon
                      between the soil phases was established. Enrichment factors
                      for the two chemicals and organic carbon are higher in the
                      COL and MA phases than in the SED phase. The distribution
                      constant K(d) of chemicals for Merzenhausen topsoil was
                      calculated according to two-phase or three-phase
                      partitioning models. The three-phase partitioning model
                      presumes the contribution of the organic carbon for the
                      binding of chemicals. A log K(oc) of 5.55 can be calculated
                      in the case of (14)C-benzo(a)pyrene, which is typical of the
                      hydrophobic association with the soil organic carbon. In the
                      case of (14)C-benazolin, much higher K(d) and K(oc) values
                      were calculated than found with parent molecules after
                      short-time experiments. Long-term aging processes must be
                      considered. Specific effects on the chemical distribution
                      due to the different crop residues were not detected.},
      keywords     = {Adsorption / Benzo(a)pyrene: chemistry / Carbon
                      Radioisotopes / Chemical Fractionation: methods / Germany /
                      Imidazoles: chemistry / Mathematics / Models, Chemical /
                      Soil Pollutants: analysis / Carbon Radioisotopes (NLM
                      Chemicals) / Imidazoles (NLM Chemicals) / Soil Pollutants
                      (NLM Chemicals) / metizoline (NLM Chemicals) /
                      Benzo(a)pyrene (NLM Chemicals) / J (WoSType)},
      cin          = {ICG-IV},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)VDB50},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Environmental Sciences},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:15749546},
      UT           = {WOS:000227941400015},
      doi          = {10.1016/j.envpol.2004.10.018},
      url          = {https://juser.fz-juelich.de/record/44720},
}