Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/93349
Author(s): Nuno Ratola
José Manuel Amigo
Mónica S. N. Oliveira
Rita Araújo
José A. Silva
Arminda Alves
Title: Differences between Pinus pinea and Pinus pinaster as bioindicators of polycyclic aromatic hydrocarbons
Issue Date: 2011
Abstract: The potential of Univariate and Multivariate Analysis and specifically Principal Components Analysis (PCA), has been employed to assess the performance of pine needles as bioindicators of polycyclic aromatic hydrocarbons (PAHs) and particularly emphasize the crucial importance of making a distinction between different pine species if more than one is sampled. Four sampling sessions were done in 29 sites and needles of two common pine species (Pinus pinaster Ait. in 19 sites and Pinus pinea L in 12) were collected and analysed using gas chromatography-mass spectrometry (GC-MS) and PCA. The results obtained indicated significant differences between species, attributed to their different morphology. The mean total PAH concentration of the P. pinaster needles are over two times higher than P. pinea's. This difference is lower when the results are presented in lipid weight, but still statistically significant. Samples from the two sites with adjacent trees reinforce these conclusions, showing significant differences in terms of PAH mean concentration and aromatic ring patterns.
Subject: Ciências da terra e ciências do ambiente
Earth and related Environmental sciences
Scientific areas: Ciências exactas e naturais::Ciências da terra e ciências do ambiente
Natural sciences::Earth and related Environmental sciences
URI: https://repositorio-aberto.up.pt/handle/10216/93349
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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