IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
artículos
Título:
Heavy metal pollution in topsoils near a cement plant: The role of organic matter and distance to the source to predict total and HCl-extracted heavy metal concentrations
Autor/es:
BERMUDEZ, GONZALO M.A.; MORENO, MÓNICA; INVERNIZZI, RODRIGO; PLÁ, RITA; PIGNATA, M.L
Revista:
CHEMOSPHERE
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Año: 2010 vol. 178 p. 375 - 381
ISSN:
0045-6535
Resumen:
Heavy metal and trace element concentrations were examined in topsoils
to evaluate a cement plant and an industrial waste incinerator as
pollution sources. As, Ba, Ca, Ce, Co, Cr, Cs, Eu, Fe, Hf, K, La, Lu,
Na, Nd, Rb, Sb, Sc, Se, Sm, Ta, Tb, Th, U, Yb and Zn were measured by
Neutron Activation Analysis (NAA), and Co, Cu, Fe, Ni, Pb and Zn by a
0.5 M-hydrochloric extraction technique using an Atomic Absorption
Spectrophotometer (AAS). The Cr total concentration and HCl-extracted Co
and Mn were possibly related to wind transportation from an industrial
area in the north of Córdoba city (Argentina). Cu, Pb and Zn in partial
HCl extraction were influenced by the cement plant and the industrial
area in the north of Córdoba city. The mean total Ba concentration was
above the residential and agricultural land use limits stated in
national and international legislation and was related to the distance
to the cement plant. The concentrations of HCl-extracted heavy metals
could be predicted by the organic matter percentage and the distance to
the cement plant (with R2 values of 0.500.74). The Ca
total concentration was seen to have little influence whereas the
organic matter percentage strongly affected HCl-extracted heavy metals
according to the correlation analysis and multiple regression models.
According to soil quality guidelines for environmental health, the human
and wildlife populations in Yocsina might be experiencing toxic Ba and
Cr effects.