alexa Particulate organic compounds emitted from experimental wildland fires in a Mediterranean ecosystem
Geology & Earth Science

Geology & Earth Science

Journal of Oceanography and Marine Research

Author(s): CAAlves, CGoncalves, MEvtyugina, CAPio, FMirante

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2.5) and coarse (PM2.5–10) smoke particles from controlled biomass burnings of a shrub-dominated forest in Lousã Mountain, Portugal, enabled the quantification by chromatographic techniques of several molecular tracers for the combustion of Mediterranean forest ecosystems, which could be conducive to source apportionment studies. The major organic components in the smoke samples were pyrolysates of vegetation cuticles, mainly comprising steradienes and sterol derivatives, carbohydrates from the breakdown of cellulose, aliphatic lipids from vegetation waxes and methoxyphenols from the lignin thermal degradation. Most of these compounds are chiefly found in fine particles. Polycyclic aromatic hydrocarbons (PAH) were also present as minor constituents. Anhydrosugar and PAH molecular diagnostic ratios were applied as source assignment tools. Some biomarkers are reported for the first time in biomass burning smoke.

This article was published in Atmospheric Environment and referenced in Journal of Oceanography and Marine Research

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