E. Mentasti et al., Distribution and statistical correlations of major, minor and trace metalsin lake environments of Antarctica, INT J ENV A, 71(3-4), 1998, pp. 245-255
Citations number
10
Categorie Soggetti
Environment/Ecology
Journal title
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
This paper reports the distribution of minor and trace metals determined in
water, algae, soil and sediment collected in different lakes in Antarctica
, during the Italian Expedition in the austral summer 1993/94. The determin
ation of the total concentration of the following metals was performed: Al,
Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Sr, Zn. These have been
determined in Carezza Lake (two temporally separate samplings) in Tarn Fla
t Lake and in Inexpressible Island Lake.
The analytical results have been discussed with reference to their differen
t meaning for matrices such as soil and sediment. Bivariate plots obtained
with the factorial analysis for principal components have been obtained and
discussed for lake water samples collected in the 1993/94 campaign and the
previous ones (1989-1993). In addition a t-test correlation method showed
that soil samples collected around the lakes and sediments sampled at the b
ottom of the lakes have equal composition with a coefficient correlation of
0.988 (95% confidence level).