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Occurrence and spatial distribution of emerging contaminants in the unsaturated zone. Case study: Guadalete River basin (Cadiz, Spain)
dc.contributor.author | Corada-Fernández, Carmen |
dc.contributor.author | Jiménez Martinez, Joaquin |
dc.contributor.author | Candela Lledó, Lucila |
dc.contributor.author | González-Mazo, Eduardo |
dc.contributor.author | Lara-Martín, Pablo A. |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental |
dc.date.accessioned | 2016-05-10T07:38:09Z |
dc.date.available | 2016-06-02T00:30:35Z |
dc.date.issued | 2015-01 |
dc.identifier.citation | Corada-Fernández, C., Jiménez, J., Candela, L., González-Mazo, E., Lara-Martín, P. Occurrence and spatial distribution of emerging contaminants in the unsaturated zone. Case study: Guadalete River basin (Cadiz, Spain). "Chemosphere", Gener 2015, vol. 119, núm. Supplement, p. S131-S137. |
dc.identifier.issn | 0045-6535 |
dc.identifier.uri | http://hdl.handle.net/2117/86812 |
dc.description.abstract | Irrigation with reclaimed water is becoming a common practice in arid- and semi-arid regions as a consequence of structural water resource scarcity. This practice can lead to contamination of the vadose zone if sewage-derived contaminants are not removed properly. In the current work, we have characterized soils from the Guadalete River basin (SW Spain), which are often irrigated with reclaimed water from a nearby wastewater treatment plant and amended using sludge. Physico-chemical, mineralogical and hydraulic properties were measured in soil samples from this area (from surface up to 2 m depth). Emerging contaminants (synthetic surfactants and pharmaceutically active compounds, or PhACs) were also determined. Synthetic surfactants, widely used in personal care products (PCPs), were found in a wide range of concentrations: 73–1300 µg kg-1 for linear alkylbenzene sulfonates (LAS), 120–496 µg kg-1 for alkyl ethoxysulfates (AES), 19–1090 µg kg-1 for alcohol polyethoxylates (AEOs), and 155–280 µg kg-1 for nonylphenol polyethoxylates (NPEOs). The presence of surfactant homologues with longer alkyl chains was predominant due to their sorption capacity. A positive correlation was found between LAS and AEOs and soil organic carbon and clay content, respectively. Out of 64 PhACs analyzed, only 7 were detected occasionally (diclofenac, metoprolol, fenofibrate, carbamazepine, clarithromycin, famotidine and hydrochlorothiazide), always at very low concentrations (from 0.1 to 1.3 µg kg-1). |
dc.language.iso | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria civil::Impacte ambiental |
dc.subject | Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Canals i regadius |
dc.subject.lcsh | Irrigation farming |
dc.subject.lcsh | Agricultural pollution |
dc.subject.other | Emerging pollutants |
dc.subject.other | Surfactants |
dc.subject.other | Pharmaceuticals |
dc.subject.other | Vadose zone |
dc.subject.other | Soils |
dc.title | Occurrence and spatial distribution of emerging contaminants in the unsaturated zone. Case study: Guadalete River basin (Cadiz, Spain) |
dc.type | Article |
dc.subject.lemac | Conreus de regadiu |
dc.subject.lemac | Contaminació agrícola |
dc.contributor.group | Universitat Politècnica de Catalunya. GHS - Grup d'Hidrologia Subterrània |
dc.identifier.doi | 10.1016/j.chemosphere.2014.04.098 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0045653514006171 |
dc.rights.access | Open Access |
local.identifier.drac | 14883697 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Corada-Fernández, C.; Jiménez, J.; Candela, L.; González-Mazo, E.; Lara-Martín, P. |
local.citation.publicationName | Chemosphere |
local.citation.volume | 119 |
local.citation.number | Supplement |
local.citation.startingPage | S131 |
local.citation.endingPage | S137 |
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