INPA   24560
UNIDAD EJECUTORA DE INVESTIGACIONES EN PRODUCCION ANIMAL
Unidad Ejecutora - UE
artículos
Título:
Behavior of insecticide chlorpyrifos on soils and sediments with different organic matter content from Provincia de Buenos Aires, República Argentina
Autor/es:
M. ÁLVAREZ; C. DU MORTIER; A. FERNÁNDEZ CIRELLI
Revista:
WATER AIR AND SOIL POLLUTION
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2013 vol. 224 p. 1453 - 1459
ISSN:
0049-6979
Resumen:
Buenos Aires Province (República Argentina) has undergone, in the last
years, a great increase in agricultural activities based on the
incorporation of new technologies and reduction of diversity to meet the
increasing food demand. The increase of intensive agricultural systems
in Argentina involves the use of fertilizers and pesticides such as
herbicides, insecticides, and fungicides. Chlorpyrifos is one of the
insecticides most widely used in these crops and constitutes a risk for
human health, birds, and aquatic biota such as macroinvertebrates and
fishes. In order to assess the possible contamination that the use of
this product may represent for the environment, it is necessary to study
its interaction with the different types of soils because fate and
transport of environmental pollutants may be influenced by their
interactions with soil particles. The behavior of chlorpyrifos was
analyzed through the study of the recoveries from spiked solid
environmental matrices. A strong dependence with organic matter content
was observed along with an important dependence with the initial
concentrations employed. Here, we show that chlorpyrifos behavior on
solid matrices not only depends on soil chemical composition. A
significant dependence of recovery percentages with initial
concentrations of the pesticide was evident in all cases. Recovery
percentages decreased with an increase of the initial concentration
employed, no matter the variations in matrices of chemical compositions.