Artículo
An integrated approach for assessing the migration behavior of chlorpyrifos and carbaryl in the unsaturated soil zone
Latini, Lorena Andrea; Indaco, Maria Mercedes
; Aguiar, María Belén
; Monza, Liliana Beatriz; Parolo, Maria Eugenia; Melideo, Carlos F.; Savini, Monica Claudia; Loewy, Ruth Miriam
Fecha de publicación:
07/2018
Editorial:
Taylor & Francis
Revista:
Journal of Environmental Science and Health. Part B: Pesticides, Food Contaminants, and Agricultural Wastes
ISSN:
0360-1234
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Chlorpyrifos (O, O-diethyl O-3,5,6-trichloropyridin-2-yl phosphorothioate) and carbaryl (1-naphthyl methylcarbamate) are often applied concurrently as insecticides in food production. The aim of this study was to research their migration behavior in a real environment. We researched the leaching of both pesticides by setting up field lysimeters on a farm with the typical soil used in fruit production today. In order to analyze the variables involved in this process, we performed complementary adsorption studies, we performed complementary adsorption studies using batches and undisturbed soil laboratory columns for both compounds. The results for pesticide transport through the lysimeters showed that less than 1% of chlorpyrifos was recovered in the leachates, while almost 17% was recovered for carbaryl. Having completed the experiment in undisturbed laboratory columns, soil analysis showed that chlorpyrifos mainly remained in the first 5 cm, while carbaryl moved down to the lower sections. These results can be explained in view of the sorption coefficient values (KD) obtained in horizons A and B for chlorpyrifos (393 and 184 L kg−1) and carbaryl (3.1 and 4.2 L kg−1), respectively. By integrating the results obtained in the different approaches, we were able to characterize the percolation modes of these pesticides in the soil matrix, thus contributing to the sustainable use of resources.
Palabras clave:
CARBARYL
,
CHLORPYRIFOS
,
LEACHING
,
SOIL
,
SORPTION
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Articulos(CITAAC)
Articulos de CENTRO DE INVESTIGACIONES EN TOXICOLOGIA AMBIENTAL Y AGROBIOTECNOLOGIA DEL COMAHUE
Articulos de CENTRO DE INVESTIGACIONES EN TOXICOLOGIA AMBIENTAL Y AGROBIOTECNOLOGIA DEL COMAHUE
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Latini, Lorena Andrea; Indaco, Maria Mercedes; Aguiar, María Belén; Monza, Liliana Beatriz; Parolo, Maria Eugenia; et al.; An integrated approach for assessing the migration behavior of chlorpyrifos and carbaryl in the unsaturated soil zone; Taylor & Francis; Journal of Environmental Science and Health. Part B: Pesticides, Food Contaminants, and Agricultural Wastes; 53; 7; 7-2018; 469-475
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