“To predict the future of coastal areas is necesary to know how was it in past”. One century sedimentary record of Hg and Pb pollution in the Sagua estuary (Cuba) derived from 210 Pb and 137 Cs chronology.
“To predict the future of coastal areas is necesary to know how was it in past”
Díaz-Asencio M. Alonso-Hernández C.M., Bolanos-Álvarez Y., Gómez-Batista M. , Morabito R., Hernández-Albernas J.I., Eriksson M., Sanchez-Cabeza J.A.
Centro de Estudio Ambientales de Cienfuegos, Cienfuegos, Cuba.
ENEA-C.R.E. Casaccia, PROT-CHIM, Roma, Italy.
Centro de Investigaciones y Servicios Ambientales, Villa Clara, Cuba.
IAEA Marine Environment Laboratories, Monaco.
Chlor-alkali plant know how was it in past”
Sampling know how was it in past”
Bahía de Santa Clara (15 m)
High-resolution gamma spectrometry know how was it in past”
X-Ray Fluorescence (XRF)
SPECTOR X-LAB PRO
210 know how was it in past”Pb
0.17 ± 0.04 g cm-2y -1
(0.52 ± 0.13 cm y-1)
0.18 ± 0.07 g cm-2 y-1
(0.52 ± 0.09 cm y-1)
Pb ( know how was it in past”µg.g-1)
This period coincides with a strong economic contraction in CubaPb pollution
Based onEnrichment Factor (EF):
where M and Al represent the trace metal and aluminium concentrations, respectively; and, the subscripts s and b refer to sample and background values.
1988 know how was it in past”
The sediment quality
of Sagua la Grande estuary
suggests the presence of a
Total Hg (µg g-1)