Origen y distribución de pesticidas organoclorados (OCPs) en sedimentos actuales de la Laguna de El Hito (Cuenca, España Central)
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Abstract
Se llevó a cabo el estudio del estado ambiental actual de la Laguna de
El Hito basado en el análisis y cuantificación de 24 pesticidas
organoclorados (OCPs): hexaclorobenceno, hexaclorociclohexanos,
diclorodifenil-tricloroetano sus homólogos y metabolitos (DDTs), y
ciclodienos (aldrín, dieldrín, endrín, endrín aldehido, endrín cetona, α-
clordano, γ-clordano, endosulfán I, endosulfán II, endosulfán sulfato,
heptacloro, heptacloro epóxido B y metoxicloro). Algunos compuestos
superaron los Niveles Genéricos de Referencia (NGR) para la salud humana
y los ecosistemas del R.D.09/2005. Se determinó su origen a partir de
diversos índices interpretándose tanto aplicaciones históricas como más
recientes. Se obtuvieron los mapas de distribución de los índices y de las
concentraciones de OCPs
Environmental evaluation of the current state of El Hito Lake referred to 24 organochlorine pesticides (OCPs) was carried out: hexachlorobenzene, hexachlorocyclohexanes, dichlorodiphenyltrichloroethane their homologs and metabolites (DDTs), and cyclodienes (aldrin, dieldrin, endrin, endrin aldehyde, endrin ketone,α-chlordane, γ- chlordane, endosulfan I, endosulfan II, endosulfan sulphate, heptachlor, heptachlor epóxide B and metoxichlor). Some of these compounds showed concentrations above the Soil Screening Levels (SSLs) for human health and ecosystems as is established in R.D.09/2005. Different indexes were used to determine their origin. Both historical and recent applications sources were interpreted. Distribution maps for concentrations and indexes were plotted
Environmental evaluation of the current state of El Hito Lake referred to 24 organochlorine pesticides (OCPs) was carried out: hexachlorobenzene, hexachlorocyclohexanes, dichlorodiphenyltrichloroethane their homologs and metabolites (DDTs), and cyclodienes (aldrin, dieldrin, endrin, endrin aldehyde, endrin ketone,α-chlordane, γ- chlordane, endosulfan I, endosulfan II, endosulfan sulphate, heptachlor, heptachlor epóxide B and metoxichlor). Some of these compounds showed concentrations above the Soil Screening Levels (SSLs) for human health and ecosystems as is established in R.D.09/2005. Different indexes were used to determine their origin. Both historical and recent applications sources were interpreted. Distribution maps for concentrations and indexes were plotted







