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Título: | Enantiomeric fraction and isomeric composition to assess sources of DDT residues in soils |
Autor: | Bosch, Carme CSIC ORCID; Grimalt, Joan O. CSIC ORCID ; Fernández Ramón, M. Pilar CSIC ORCID | Palabras clave: | Chiral pesticides DDT pollution in soils Dicofol Enantiomeric fraction O,p'-DDT |
Fecha de publicación: | 1-nov-2015 | Editor: | Elsevier | Citación: | Chemosphere 138: 40-46(2015) | Resumen: | Chiral pesticides such as o,p'-DDT can undergo enantioselective microbial degradation in soil. Hence, the enantiomeric fraction (EF) of o,p'-DDT was used as an approach to assess potential recent inputs of DDT in the lower part of the Ebro River basin (NE Spain), a region heavily impacted by agricultural and industrial activities, including a dicofol production and a chloro-alkali plants. The EFs of five out of nineteen soils were not different from the racemic value (0.505. ±. 0.010), confirming that the Ebro River and some of its tributaries, Segre and Cinca rivers, transported fresh DDT residues despite its ban in Spain during the 90s. o,p'-DDT/. p,p'-DDT ratios in soils suggest that recent use of technical DDT and/or DDT-contaminated dicofol may be responsible for the fresh DDT inputs in the Segre River, while in the Ebro River, they indicate a dominant contribution of technical DDT, likely related to the residues accumulated by the chloro-alkali plant discharges. © 2015 Elsevier Ltd. | Versión del editor: | http://dx.doi.org/10.1016/j.chemosphere.2015.05.047 | URI: | http://hdl.handle.net/10261/135224 | DOI: | 10.1016/j.chemosphere.2015.05.047 |
Aparece en las colecciones: | (IDAEA) Artículos |
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Enantiomeric fraction and isomeric composition to assess sources of DDT residues in soils.docx | Artículo principal | 81,67 kB | Microsoft Word XML | Visualizar/Abrir |
Supplementary material_Chemosphere.docx | Material adicional | 255,68 kB | Microsoft Word XML | Visualizar/Abrir |
FIGURES_Chemosphere.docx | Figuras | 35,17 kB | Microsoft Word XML | Visualizar/Abrir |
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