INVESTIGADORES
BALLESTEROS Maria Laura
congresos y reuniones científicas
Título:
Fingerprint of organochlorine pesticides in sediments of aquatic environments from Argentina.
Autor/es:
MIGLIORANZA, K.S.B.; BALLESTEROS, M.L; GONZÁLEZ, M.; GRONDONA, S.; LUPPI, L.; ONDARZA, P.M.; SHIMABUKURO, V.; SILVA BARNI, M.F
Reunión:
Congreso; 13th IUPAC INTERNATIONAL CONGRESS OF PESTICIDE CHEMISTRY; 2014
Resumen:
A research of organochlorine pesticide occurrence in
sediments was conducted in Argentina. Although these
pesticides are forbidden, they are present in different
environments due to the persistence and volatility. One
hundred sediment samples were collected from urban,
agricultural and natural areas throughout Argentina aquatic
ecosystems, including lagoons, rivers, lakes, creeks, and sea
coast. The aim of this work was to assess different pesticide
sources in order to obtain a fingerprint of organochlorine
pesticides in Argentina aquatic environments. Pesticides
were quantified by GC-ECD. A clear pattern showing a
prevalence of extensive agricultural in the central area of
Argentina denotes the high levels of Endosulfan found.
However, in Patagonia region, the south area of the country,
agricultural and fruit production are the main activities
developed. The historical use of more persistent
organochlorine, such as DDTs, justifies the high levels of
DDE, a metabolite of DDT, found in the sediments. Along the
sea coast of the country, the distribution pattern of
organochlorine pesticides, indicates a possible atmospheric
transport