466
C. Ianni . N. Ruggieri
Fig. 21.S. Speciation of Ph and
Cd in Transect 4 in the area of
100
Brindisi
80
l60
.0
CL.
40
20
0
4E
4F
4G
4H
~
100
80
l60
"1J
u 40
20
0
4E
4F
4G
4H
.1 02.3 OR
example, the correspondence between a metal distribution in the labile fraction and
the fine fraction indicates that the metal is prevalently found in the exchangeable phase.
Correlation with organic matter content can indicate that an element in the oxidizable phase is bound to organics rather than to sulphides.
Therefore, as selective extraction procedures are so essential for environmental studies and considering the recent improvements in these analytical methods and the availability of reference material, their utilization is strongly advisable.
Acknowledgements
This work was fmancially supported by the Italian National "Programma di Ricerca e
Sperimentazione per il Mare Adriatico" 2nd phase (PRISMA 2) and by the CE project
"INTERREG II Italia - Grecia"
C. Ianni . N. Ruggieri
Fig. 21.S. Speciation of Ph and
Cd in Transect 4 in the area of
100
Brindisi
80
l60
.0
CL.
40
20
0
4E
4F
4G
4H
~
100
80
l60
"1J
u 40
20
0
4E
4F
4G
4H
.1 02.3 OR
example, the correspondence between a metal distribution in the labile fraction and
the fine fraction indicates that the metal is prevalently found in the exchangeable phase.
Correlation with organic matter content can indicate that an element in the oxidizable phase is bound to organics rather than to sulphides.
Therefore, as selective extraction procedures are so essential for environmental studies and considering the recent improvements in these analytical methods and the availability of reference material, their utilization is strongly advisable.
Acknowledgements
This work was fmancially supported by the Italian National "Programma di Ricerca e
Sperimentazione per il Mare Adriatico" 2nd phase (PRISMA 2) and by the CE project
"INTERREG II Italia - Grecia"