PROBIEN 20416
INSTITUTO DE INVESTIGACION Y DESARROLLO EN INGENIERIA DE PROCESOS, BIOTECNOLOGIA Y ENERGIAS ALTERNATIVAS
Unidad Ejecutora - UE
artículos
Título:
As bioaccumulation in southern Argentinean species by SR-TXRF
Autor/es:
LAMELA, PAULA A.; NAVONI, JULIO A.; VODOPIVEZ, CRISTIANL.; PEREZ, ROBERTO D; CURTOSI, A.; BONGIOVANNI, GUILLERMINA A.
Revista:
Activity Report 2011/Brazilian Synchrotron Light Laboratory
Editorial:
Brazilian Synchrotron Light Laboratory
Referencias:
Lugar: Campinas; Año: 2012 vol. 2011 p. 1 - 2
ISSN:
1518-0204
Resumen:
Arsenic is an abundant toxic metal in our environment and is bioaccumulate in exposed species, including humans. Due to recent volcanism (in geological terms) of the Andes, this contaminant found in high proportions in many groundwater and superficial aquifers exposing various species and some 15 million people in Latin America to toxic concentrations of this carcinogen. In Patagonian Andes (Argentina) we found concentrations of As in superficial water up to 25times the quality standards of drinking water for humans and 17 times for the life of aquatic species. The Andes continue beyond Tierra del Fuego, under the sea, reappearing as islands and then emerge again as Antartandes, the great mountain chain of the Antarctic Peninsula. In these regions has also described the presence of As in sediments and macro-algae. Our experiences indicate that the SR-TXRF technique would be appropiate to determine As bio-accumulation in southern native species.
