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Title: Geochemical markers and polycyclic aromatic hydrocarbons in solvent extracts from diesel engine particulate matter
Authors: Fabiańska, Monika
Kozielska, Barbara
Bielaczyc, Piotr
Woodburn, Joseph
Konieczyński, Jan
Keywords: PAH; GC-MS; Diagnostic ratios; Geochemical ratios; CI
Issue Date: 2016
Citation: Environmental Science and Pollution Research, 2016, iss. 7, s. 6999-7011
Abstract: Exhaust particulate from compression ignition (CI) engines running on engine and chassis dynamometers was studied. Particulate dichloromethane extracts were qualitatively and quantitatively analyzed for polycyclic aromatic hydrocarbons (PAHs) and biomarkers by gas chromatography with flame ionization detector (GC-FID) and gas chromatographymass spectrometry (GC-MS). PAH group profiles were made and the PAH group shares according to the number of rings (2 or 3; 4; 5 or more) as well as diagnostic indices were calculated. Values of geochemical ratios of selected biomarkers and alkyl aromatic hydrocarbons were compared with literature values. A geochemical interpretation was carried out using these values and biomarker and alkyl aromatic hydrocarbon distributions. It has been shown that geochemical features are unequivocally connected to the emission of fossil fuels and biofuels burned in CI engines. The effect of the exothermic combustion process is limited to low-molecular-weight compounds, which shows that the applied methodology permits source identification of PAHs coexisting in the particulate emitted.
DOI: 10.1007/s11356-015-5996-z
ISSN: 0944-1344
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