Influence of weight on the content of trace metals in tissues of Mytilus galloprovincialis (Lamarck, 1819): a forecast model.
Fifty seven samples of Mytilus galloprovincialis (Lamarck, 1819) collected along the breakwater barriers of Fano (station 1) and Pesaro (station 2), Adriatic Sea, Marche Region, central Italy, were analyzed by atomic absorption spectrometry and Cd, Cu, Pb and Zn concentrations in the soft tissues were measured. The aims of this work were the statistical analysis of Cd-weight, Cu-weight, Pb-weight, Zn-weight relationships, and the building of a tendency function that allows assessing with a good approximation the concentrations of a metal in different weight organisms. In Mytilus galloprovincialis the content of Cd proportionally grew with the weight and therefore its concentration was independent from this factor; while the concentration of Pb decreased as the weight increased. In both cases the accuracy of multiple regression models improved considering the variable 'site', while the same approach appeared not reliable for Cu and Zn, that were two essential metals. Our results showed that a tendency function was reliable, solid and able to predict to a very satisfying extent the concentration of non-physiological metals, like Cd and Pb; while it did not show a good approximation with real Cu and Zn contents.
Conti
Marcelo Enrique
ME
SPES Development Studies Research Centre, Università La Sapienza, Rome, Italy. marcelo.conti@uniroma1.it
Iacobucci
Marta
M
Cecchetti
Gaetano
G
Alimonti
Alessandro
A
D000818:Animals; D004784:Environmental Monitoring / Q000379:methods; D005544:Forecasting; D007558:Italy; D008670:Metals / Q000032:analysis*; D008962:Models, Theoretical; D049878:Mytilus / Q000737:chemistry*; D013054:Spectrophotometry, Atomic; D014131:Trace Elements / Q000032:analysis*
D008670:Metals; D014131:Trace Elements
Environ Pollut. 2001;115(1):107-21
11586766
Sci Total Environ. 1998 Oct 15;222(1-2):55-61
9842751
Sci Total Environ. 2002 Apr 15;288(3):239-53
11991527
Chemosphere. 1999 Jul;39(2):313-21
10399846
Nature. 1974 Sep 27;251(5473):311-4
4427655
Environ Pollut. 2001;114(3):303-11
11584629
Environ Pollut. 2006 Nov;144(1):272-9
16513234
Sci Total Environ. 2004 Jan 5;318(1-3):115-24
14654279
Environ Res. 2003 Sep;93(1):99-112
12865053
Talanta. 2007 Apr 30;72(2):600-6
19071661