Sampling and analysis of PAH and oxygenated PAH in diesel exhaust and ambient air

Eva Leoz-Garziandia (1) , Véronique Tatry (1) , Patrick Carlier (2)

1 INERIS - Institut National de l'Environnement Industriel et des Risques
2 LISA (UMR_7583) - Laboratoire Interuniversitaire des Systèmes Atmosphériques

In this work, diesel engine emissions were investigated in a dilution tunnel. The gas/particle partitioning and the different size fractions of Polycyclic Aromatic Hydrocarbons (PAH) and oxygenated derivatives (oxy-PAH) were studied. In addition, measurements were carried out near a motorway in Paris for comparison to the tunnel test results. First, it is shown, that the gaseous phase of the PAH is predominant (up to 20 times) with respect to the particulate phase, and that the PAH and their derivatives are mainly adsorbed in the very fine particulate fraction (particle size under 0.4 mum) Second, the oxygenated PAH, neglected in the majority of previous studies, are predominant with respect to the PAH.

Mots clés: DIESEL EMISSIONS; DILUTION CHAMBER; GAS/PARTICLE PARTITIONING; PAH; OXYGENATED PAH

Domaines: Sciences de l'environnement

Eva Leoz-Garziandia, Véronique Tatry, Patrick Carlier. Sampling and analysis of PAH and oxygenated PAH in diesel exhaust and ambient air. Polycyclic Aromatic Compounds, 2000, 20 (1-4), pp.245-258. ⟨10.1080/10406630008034789⟩. ⟨ineris-00962764⟩