Organochlorine pesticides in protected areas: El Hito Lake (Cuenca, Central Spain)

Sánchez-Palencia González, Yolanda and Ortiz Menéndez, José Eugenio and Torres Pérez-Hidalgo, Trinidad José and Llamas Borrajo, Juan Francisco (2017). Organochlorine pesticides in protected areas: El Hito Lake (Cuenca, Central Spain). "Journal of iberian geology", v. 43 (n. 4); pp. 539-557. ISSN 1698-6180. https://doi.org/10.1007/s41513-017-0045-z.

Description

Title: Organochlorine pesticides in protected areas: El Hito Lake (Cuenca, Central Spain)
Author/s:
  • Sánchez-Palencia González, Yolanda
  • Ortiz Menéndez, José Eugenio
  • Torres Pérez-Hidalgo, Trinidad José
  • Llamas Borrajo, Juan Francisco
Item Type: Article
Título de Revista/Publicación: Journal of iberian geology
Date: December 2017
Volume: 43
Subjects:
Freetext Keywords: Pesticidas organoclorados; sedimentos lacustres; suelos contaminados; NGR; POP = Organochlorine pesticides; Lacustrine sediments; Soil contamination; SSL; POPs
Faculty: E.T.S.I. de Minas y Energía (UPM)
Department: Energía y Combustibles
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Antecedentes La Laguna de El Hito es un humedal salino y efímero que aparece la mayor parte del año como un salar yesífero en el que se acumula agua durante periodos lluviosos y se convierte en refugio de aves migratorias como flamencos y grullas, entre otros. Se considera un lugar de importancia para la biodiversidad y por ello está protegido por diversas directivas. Objetivos Se realizó una campaña de muestreo de los suelos de la cuenca y de los sedimentos del fondo de la laguna con el objetivo de conocer su estado ambiental y determinar la distribución espacial y el origen de los pesticidas organoclorados (OCP). Métodos Se presenta la primera evaluación del estado actual de la laguna respecto a los OCP: hexaclorobenzeno (HCB), hexaclorociclohexanos (α-, β-, γ- y δ-HCH), diclorodifeniltricloroetano (DDT) y sus metabolitos (DDE y DDD), y los ciclodienos (aldrín, dieldrín, endrín, endrín aldehido, endrín cetona, α-clordano, γ-clordano, endosulfán I, endosulfánII, endosulfán sulfato, heptacloro, heptacloro epóxido B y metoxicloro). Resultados Algunos compuestos mostraron concentraciones por encima de los Niveles Genéricos de Referencia (NGR) para la salud humana y los ecosistemas: γ-HCH (100 μg/kg), α-HCH (60 μg/kg), endrín (30 μg/kg), aldrín (30 μg/kg) y heptacloro epóxido B (30 μg/kg). Se emplearon varios índices para determinar el origen de estos compuestos. Conclusiones Se interpretó un uso histórico, aunque en algunos casos con un origen reciente. Los mapas de distribución mostraron la alta correspondencia entre la agricultura y ganadería con máximos observados, siendo posible que los pesticidas tengan influencia nociva en los organismos, especialmente en las aves. ---------- ABSTRACT---------- Background El Hito Lake is an ephemeral saline water mass present most of the year as a gypsiferous salt pan that is temporarily fooded during rainy periods, when it becomes a refuge for migratory birds such as flamingos and cranes, among others. It is considered an important hotspot of biodiversity and as such is covered by protection status. Purpose In order to check the environmental condition of the lake and determine the spatial distribution and source of organochlorine pesticides (OCPs), we performed a detailed soil and sediment sampling campaign with the catchment and dry lake bottom. Methods We present the first environmental evaluation of its current state with respect to OCPs: hexachlorobenzene (HCB), hexachlorocyclohexanes (α-, β-, γ- and δ-HCH), dichlorodiphenyltrichloroethane (DDT) and its metabolites (DDE and DDD), and cyclodienes (aldrin, dieldrin, endrin, endrin aldehyde, endrin ketone, α-chlordane, γ-chlordane, endosulfan I, endosulfanII, endosulfan sulphate, heptachlor, heptachlor epoxide B and metoxichlor). Results Some of the compounds showed concentrations above the soil screening levels (SSLs) for human health and ecosystems: γ-HCH (100 μg/kg), α-HCH (60 μg/kg), endrin (30 μg/kg), aldrin (30 μg/kg) and heptachlor epoxide B (30 μg/kg). Various indices were used to determine the origin of the compounds. Conclusion Historical uses were interpreted, although there were traces of recent input. Distribution maps of concentration and indices demonstrate a relationship between farming and cropping and the maxima observed, being possible that OCPs have influence in living beings, especially birds.El Hito Lake is an ephemeral saline water mass present most of the year as a gypsiferous salt pan that is temporarily flooded during rainy periods, when it becomes a refuge for migratory birds such as flamingos and cranes, among others. It is considered an important hotspot of biodiversity and as such is covered by protection status.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainP0079000214UnspecifiedUnspecifiedUnspecified

More information

Item ID: 54530
DC Identifier: http://oa.upm.es/54530/
OAI Identifier: oai:oa.upm.es:54530
DOI: 10.1007/s41513-017-0045-z
Official URL: https://link.springer.com/article/10.1007%2Fs41513-017-0045-z
Deposited by: Memoria Investigacion
Deposited on: 10 Apr 2019 10:43
Last Modified: 29 Apr 2019 10:58
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