Concentrations of Hg, Pb, Cd, Ni, Co, Zn, Cr, Cu and Fe in surface sediments sampled in the Lagoon of Venice were processed using two mathematical statistical methods. "Principal Component" analysis and "Cluster" analysis were combined in order to assess the degree of contamination in different areas of the lagoon, to determine the sources, and to trace the diffusion paths. Data were normalized to the "natural" concentrations of metals determined from the deepest sections of the sediment cores. The eigenvalues of the first three Principal Components (PC) accounted for 97% of the total variance. The composition of the first eigenvector is related to the overall metal contamination. The second PC separates two main types of contamination; one...
PubMedID: 18500662The aim of this study was to investigate variations in heavy metal concentrations ...
Surface sediments collected from the Lagos Lagoon, Nigeria, and three adjoining rivers were analysed...
Results. Middle (Cu, Cr) and low (Cd, Pb, Zn) concentrations of heavy metals in sediment samples fro...
Concentrations of Hg, Pb, Cd, Ni, Co, Zn, Cr, Cu and Fe in surface sediments sampled in the Lagoon o...
The state of pollution of sediments in the Venice Lagoon has been analysed, taking into consideratio...
Sediment samples from the central area of the Venice Lagoon in Italy and some lagoon canals, chosen ...
Bottom sediments of the central area of the Venice Lagoon (Italy) and some lagoon canals, chosen as ...
Geochemical researches have been carried out on bottom sediments subdivided in two levels (0-2 cm; 3...
The paper presents the correlation between heavy metals concentration in surface bottom sediments of...
Concentrations of Cr, Cu, Hg, Pb and Zn have been measured, by atomic absorption spectrophotometry, ...
Major and trace elements were determined in 14 sediment cores collected from the Marano and Grado La...
In this study heavy metal pollution in surface sediments of the lagoon of Venice (Italy) has been in...
Major and trace elements were determined in 14 sediment cores collected from the Marano and Grado La...
This study investigated the occurrence of selected metals and metalloids (As, Cd, Cr, Cu, Hg, Ni, Pb...
PubMedID: 18500662The aim of this study was to investigate variations in heavy metal concentrations ...
Surface sediments collected from the Lagos Lagoon, Nigeria, and three adjoining rivers were analysed...
Results. Middle (Cu, Cr) and low (Cd, Pb, Zn) concentrations of heavy metals in sediment samples fro...
Concentrations of Hg, Pb, Cd, Ni, Co, Zn, Cr, Cu and Fe in surface sediments sampled in the Lagoon o...
The state of pollution of sediments in the Venice Lagoon has been analysed, taking into consideratio...
Sediment samples from the central area of the Venice Lagoon in Italy and some lagoon canals, chosen ...
Bottom sediments of the central area of the Venice Lagoon (Italy) and some lagoon canals, chosen as ...
Geochemical researches have been carried out on bottom sediments subdivided in two levels (0-2 cm; 3...
The paper presents the correlation between heavy metals concentration in surface bottom sediments of...
Concentrations of Cr, Cu, Hg, Pb and Zn have been measured, by atomic absorption spectrophotometry, ...
Major and trace elements were determined in 14 sediment cores collected from the Marano and Grado La...
In this study heavy metal pollution in surface sediments of the lagoon of Venice (Italy) has been in...
Major and trace elements were determined in 14 sediment cores collected from the Marano and Grado La...
This study investigated the occurrence of selected metals and metalloids (As, Cd, Cr, Cu, Hg, Ni, Pb...
PubMedID: 18500662The aim of this study was to investigate variations in heavy metal concentrations ...
Surface sediments collected from the Lagos Lagoon, Nigeria, and three adjoining rivers were analysed...
Results. Middle (Cu, Cr) and low (Cd, Pb, Zn) concentrations of heavy metals in sediment samples fro...