| |
|
Heavy metal distribution in bottom sediments
of a Mexican reservoir
P. Avila-Pérez1*
J. A. Garcia-Aragón2, C.
Diaz-Delgado2, S. Tejeda-Vega1,
R. Reyes-Gutiérrez2
1lnstituto
Nacional de Investigaciones Nucleares, Salazar Edo. de Mexico,
Mexico;
E-mail: pap@nuclear inin.mx
2Centro Interamericano de
Recursos del Agua, CIRA-FI-UAEM, Cerro de Coatepec, CU, Toluca,
Edo. de Mexico, Mexico;
*Corresponding author E-mail: pap@nuclear
inin.mx
|
Abstract
Sediments from the Jose Antonio Alzate
Reservoir (Mexico) that receives large amount of industrial and
municipal untreated waste water were analyzed in order to explore
pollution by heavy metals. Samples from ten locations were analyzed
to obtain particle size and concentrations of selected heavy metals
in different sieve size fractions. Areas of deposition of fines
are illustrated. The analysis of metal concentration by size fraction,
the relative presence of metals, the ratio of metal concentrations
to sediment particle size and additional information such as anthropogenic
inputs, chemical association were used to explain the distribution
pattern of heavy metals in the reservoir.
Keywords: Metal correlations, pollution, particle
size, heavy metals, sediments.
|
