Título: Analytical LettersImportada do Authenticus Pesquisar Publicações da Revista

Vol. 45

Páginas: 508-525

ISSN: 0003-2719

Editora: Taylor & Francis

ISI Web of Knowledge - 5 Citações

ISI Web of Science

Scopus - 7 Citações

FOS: Ciências exactas e naturais > Química

ID Authenticus: P-002-GK5

DOI: 10.1080/00032719.2011.649452

Abstract (EN): The main objective of this work was to assess and compare the levels, patterns, and sources of contamination of 16 polycyclic aromatic hydrocarbons (PAHs) between Portugal, Spain, and Greece (in the island of Crete). A total of 9 sampling sites were chosen (4 in urban and 5 in non-urban areas) in each country and pine needles from the Pinus pinea L. species were collected. Although the mean total PAH levels was similar in the three countries (279 +/- 236 ng g(-1) for Portugal, 294 +/- 258 ng g(-1) for Spain, 301 +/- 253 ng g(-1) for Greece, all dry weight) and, in general, 3-ring and 4-ring PAHs were predominant (being phenanthrene consistently the most abundant), there were some visible differences in the aromatic ring patterns and possible sources between the three regions. Source apportionment was done using PAH ratios (Phen/Ant and Flt/Pyr crossplots) and reflected mixed petrogenic and pyrogenic sources. Furthermore, Principal Component Analysis (PCA) clearly separated the urban and the non-urban sites and all three countries, which reinforces that the sources of contaminations vary in each case and the suitability of pine needles for trans-boundary biomonitoring of PAHs.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18