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Surveillance programme on dioxin levels in soils in the Campo de Gibraltar (southwest Spain)

AutorMartínez Guijarro, Karell; Abad Holgado, Esteban; Rivera Aranda, Josep
Palabras clavePCDD/F
Campo de Gibraltar
Fecha de publicación27-mar-2006
CitaciónChemosphere 65(3): 382-389 (2006)
ResumenThe results of an epidemiologic study undertaken by the Spanish Council for Scientific Research (CSIC) after commission by the Spanish Parliament indicated that Huelva and Cádiz were the zones in Andalusia with elevated risk of cancer. A 6% (women) and 10% (men) cancer mortality excess was observed with respect to the other six Andalusian provinces. Huelva and Cádiz are located in the south-western region of Spain, and are characterized by a strong industrial activity concentrated in several industrial sites. This situation led to two environmental surveys in these areas, in which the presence of dioxins was studied among other parameters.
A PCDD/F assessment in soils of the Campo de Gibraltar (Cádiz) was carried out from June 2003 to June 2004. A total of 20 samples were collected in this study divided in two sampling campaigns. The first 10 samples were taken in locations affected by high industrial activity zones as well as in landfills (hotspots). The rest of the samples were collected in areas that were not expected to be contaminated, such as agricultural zones and forests.
I-TEQ values of the samples ranged from 0.26 to 15.08 ng/kg dm. In all, 85% of the samples were below the limit of 5 ng I-TEQ/kg I-TEQ concentrations of three samples only surpassed this limit. These zones corresponded to a landfill, a quarry used for dumping chemical product containers and a sample from the sewage system of the industrial site. These sites were used neither for agricultural nor for public purposes.
Descripción8 pages, 4 figures.-- PMID: 16564070 [PubMed].-- Printed version published Oct 2006.
Versión del editorhttp://dx.doi.org/10.1016/j.chemosphere.2006.02.009
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