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Principal component analysis for the identification of pollution sources in mussel survey by trace metals

Analyse der Hauptkomponenten zur Identifizierung der Verunreinigungsursachen von Muscheln über die Spurenmetalle

Zeitschrift für Lebensmittel-Untersuchung und Forschung volume 184, pages 101–109 (1987)Cite this article

Zusammenfassung

Die Analyse der Hauptkomponenten wurde auf die Korrelationsmatrix, die aus der 8 × 43-Datenmatrix hervorgeht, angewandt. Diese 8 Spurenmetalle sind Mn, Co, Ni, Cu, Zn, Cd, Hg, Pb, die im Fleisch der Miesmuscheln (Mytilus galloprovincialis Lamarck) gefunden worden sind. Die Miesmuscheln stammen aus zwei Gegenden des Golfes von Triest. Vier Hauptkomponenten erklären 76–78 % der totalen Varianz der beiden Stichproben. Die orthogonale-rotierte Faktorenmatrix zeigt, daß Co und Ni an die erste Hauptkomponente und Cd und Pb an die erste (Lage 2) oder an die zweite Hauptkomponente (Lage 1) gebunden sind. Die Herkunft der Spurenmetalle im Muschelfleisch aus dem Golf von Triest wird diskutiert.

Summary

Principal component analysis has been applied to analyze the correlation matrix obtained from a 8 × 43 data matrix. The 8 trace metals are Mn, Co, Ni, Cu, Zn, Cd, Hg, Ph, which are contained in the soft part of mussels (Mytilus galloprovincialis Lamarck). Mussels were sampled from two sites in the Gulf of Trieste. In both samples, 76–78% of the total variance is explained by the four principal components. The orthogonally rotated factor matrix indicates that Co and Ni are bonded to the first principal component and Cd and Pb to the first (site 2) or second principal component (site 1). The origin of trace metals in the soft part of mussels from the Gulf of Trieste is discussed.

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Author notes

  1. Lorenzo Felician

    Present address: Informatica Friuli-Venezia Giulia, Padriciano, Trieste, Italy

Affiliations

  1. Istituto di Merceologia, Universitá di Trieste, I-34100, Trieste, Italy

    Luciano Favretto, Luciana Gabrielli Favretto & Lorenzo Felician

Authors
  1. Luciano Favretto
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  2. Luciana Gabrielli Favretto
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  3. Lorenzo Felician
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Additional information

L. Felician is the author of the statistical analysis for site 1 as a part of his thesis in Commodity Science, Faculty of Economics, University of Trieste- L. Gabrielli Favretto is the author of the statistical analysis of the data for site 2. All authors contributed to the rest of the paper

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Favretto, L., Favretto, L.G. & Felician, L. Principal component analysis for the identification of pollution sources in mussel survey by trace metals. Z Lebensm Unters Forch 184, 101–109 (1987). https://doi.org/10.1007/BF01042082

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  • DOI: https://doi.org/10.1007/BF01042082

Keywords

  • Analytical Chemistry
  • Principal Component Analysis
  • Total Variance
  • Trace Metal
  • Correlation Matrix