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Determination in soils of PAH produced by combustion of biomass under different conditions

AuthorsGonzález-Vila, Francisco Javier ; López, José Luis; Martín Martínez, Francisco; Río Andrade, José Carlos del
KeywordsPolynuclear aromatic hydrocarbons
Issue Date1991
CitationFresenius Journal of Analytical Chemistry 339: 750-753 (1991)
AbstractThe nature and concentrations in soils of polynuclear aromatic hydrocarbons (PAH) generated by combustion of pine biomass under different conditions was determined by gas chromatography-mass spectrometry after their enrichment by a simple clean-up procedure. The patterns of pyrogenic PAH, presumably generated by thermal aromatization of biogenic precursors, vary for each sample. When burned at moderate temperature for a long period of time the most abundant homologues generated were alkylated derivatives of naphthalene, whereas phenanthrene alkyl derivatives were predominant after a forest wildfire, where higher temperatures are reached in less time. More condensed PAH included in well-known priority pollutant lists were detected only in minor amounts. No long persistence of PAH was observed in some soil samples analysed.
Description4 pages, 2 figures, 2 tables, 25 references.-- Instituto de Recursos Naturales y Agrobiologia, C.S.I.C., Apartado 1052, E-41080 Sevilla, Spain
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