Please use this identifier to cite or link to this item:
http://hdl.handle.net/10261/60828
Share/Export:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Title: | Desorption, persistence, and leaching of dibenzofuran in European Soils |
Authors: | Celis, Rafael CSIC ORCID ; Real Ojeda, Miguel CSIC ORCID; Hermosín, M.C. CSIC ORCID; Cornejo, J. CSIC ORCID | Issue Date: | 2006 | Publisher: | Soil Science Society of America | Citation: | Soil Science Society of America Journal 70: 1310- 1317 (2006) | Abstract: | Polycyclic aromatic hydrocarbons (PAHs) and their heterocyclic analogs (hetero-PAHs) represent the predominant chemical classes in many contaminated soils. Despite the fact that hetero-PAHs are more soluble and hence potentially more mobile and bioavailable than similar nonsubstituted compounds, the existing information about the fate of these compounds in the soil environment is limited. In this article, laboratory experiments were designed to assess the desorption, persistence, and leaching behavior of the hetero-PAH dibenzofuran in four European soils with different physicochemical characteristics. Previous research has shown that organic matter was important in the extent of sorption of dibenzofuran by the soils studied, although sorption was not predictable exclusively from the organic carbon content. Dibenzofuran desorption isotherms showed iittie hysteresis, in particular from higher equilibrium points of the sorption isotherms, indicating weak interaction mechanisms between dibenzofuran and the soils. The half-life of dibenzofuran in the soils during incubation experiments ranged between 5 and 55 d, depending on soil type and experimental conditions. In general, the persistence of dibenzofuran decreased with the organic carbon content of the soils (0.56-2.09%) and with temperature (4°C/20°C) and increased with the initial concentration of the chemical in soil (10 mg kg-1/100 mg kg-1). Leaching tests, performed in hand-packed and undisturbed soil columns, indicated that dibenzofuran is likely to move slowly through the soil profile, although dissolved organic matter and soil structure can influence the amount of dibenzofuran leached. The effect of dissolved organic matter on leaching of dibenzofuran was found to be soil dependent and less important than the effect of soil structure. | URI: | http://hdl.handle.net/10261/60828 | DOI: | 10.2136/sssaj2005.0304 | Identifiers: | doi: 10.2136/sssaj2005.0304 issn: 0361-5995 e-issn: 1435-0661 |
Appears in Collections: | (IRNAS) Artículos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Desorption_persistence.pdf | 189,82 kB | Adobe PDF | View/Open |
CORE Recommender
SCOPUSTM
Citations
5
checked on Apr 24, 2024
WEB OF SCIENCETM
Citations
6
checked on Feb 22, 2024
Page view(s)
252
checked on Apr 24, 2024
Download(s)
238
checked on Apr 24, 2024
Google ScholarTM
Check
Altmetric
Altmetric
WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.