HR: 0800h
AN: B41B-02 [Abstracts]
TI: The Environmental Fate and Bioavailability of Arsenic in Cuitzeo, Michoacán, México .
AU: * Rivas-Valdes, M
EM: tere_kabay_ix@hotmail.com
AF: Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Circuito Interior, Ciudad
Universitaria, Coyoacan, Mexico City, 04510, Mexico
AU: * Rivas-Valdes, M
EM: tere_kabay_ix@hotmail.com
AF: Instituto de Geografia, Universidad Nacional Autonoma de Mexico, Circuito Exterior, Ciudad
Universitaria, Coyoacan, Mexico City, 04510, Mexico
AU: Fernandez-Lomelin, P
EM: pilarf@igg.unam.mx
AF: Instituto de Geografia, Universidad Nacional Autonoma de Mexico, Circuito Exterior, Ciudad
Universitaria, Coyoacan, Mexico City, 04510, Mexico
AU: Cram-Heydrich, S
EM: silre@igg.unam.mx
AF: Instituto de Geografia, Universidad Nacional Autonoma de Mexico, Circuito Exterior, Ciudad
Universitaria, Coyoacan, Mexico City, 04510, Mexico
AU: Gamboa-Cáceres, A
AF: Posgrado en Ciencias Biologicas, Universidad Nacional Autonoma de Mexico, Circuito
Interior, Ciudad Universitaria, Coyoacan, Mexico City, 04510, Mexico
AU: Vanegas, C
AF: Facultad de Ciencias, Universidad Nacional Autonoma de Mexico, Circuito Exterior, Ciudad
Universitaria, Coyoacan, Mexico City, 04510, Mexico
AU: Cervini-Silva, J
EM: jcervini@igg.unam.mx
AF: Facultad de Ciencias, Universidad Nacional Autonoma de Mexico, Circuito Exterior, Ciudad
Universitaria, Coyoacan, Mexico City, 04510, Mexico
AB:
Cuitzeo is located in Central Mexico. The Cuitzeo lake is very low, it has seven islands and a highway four
kilometers long that crosses the lake. Detected concentrations of arsenic average
30-40 mg kg-1. In the salted waters a lot of "charal" (a small fish), main ingredient in many regional dishes, and
ducks can be found. This study reports the effect of organic matter on As partitioning. Complexation of As with
organic biomolecules that may contribute to detoxification pathways in Cuitzeo are discussed.
DE: 0402 Agricultural systems
DE: 0409 Bioavailability: chemical speciation and complexation
DE: 0418 Bioremediation
DE: 0432 Contaminant and organic biogeochemistry (0792)
DE: 0448 Geomicrobiology
SC: Biogeosciences [B]
MN: 2007 Joint Assembly