Concentration measurement in a road tunnel as a method to assess "real-world" vehicles exhaust emissions

TitleConcentration measurement in a road tunnel as a method to assess "real-world" vehicles exhaust emissions
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2006
AuthorsZanini, Gabriele, Berico M., Monforti F., Vitali Lina, Zambonelli S., Chiavarini Salvatore, Georgiadis T., and Nardino M.
JournalAtmospheric Environment
Keywords2, 3 cd]pyrene, Air pollution, air temperature, anthracene, article, benzo[a]pyrene, benzo[b]fluoranthene, benzo[e]pyrene, benzo[ghi]perylene, benzo[k]fluoranthene, benz[a]anthracene, Biodiesel blend, Bologna [Bologna (PRV)], Bologna [Emilia-Romagna], Bus engines, chrysene, concentration (parameters), Data reduction, dibenz[a, diesel fuel, Diesel fuels, Emilia-Romagna, emulsion, Eurasia, Europe, exhaust emission, exhaust gas, experimental study, fluoranthene, fuel, humidity, h]anthracene, indeno[1, Italy, lung deposit, Lungs deposition, Motor transportation, motor vehicle, PAH, Particles (particulate matter), particulate matter, phenanthrene, polycyclic aromatic hydrocarbon, Polycyclic aromatic hydrocarbons, priority journal, pyrene, Southern Europe, sulfur, traffic and transport, triphenylene, tunnel, Tunnels, unclassified drug, Water diesel emulsion

An experiment aimed at comparing particulate matter (PM) and polycyclic aromatic hydrocarbons (PAHs) concentrations produced in a road tunnel by buses is described. The experiment took place in 2001 in Bologna when a couple of buses belonging to the public transport fleet where driven backwards and forwards in a road tunnel closed to all other vehicles. Buses run in the tunnel for 8 h a day for 4 experiment days, each day using a different fuel: biodiesel, diesel-water emulsion, diesel-water emulsion with low sulphur content and commercial diesel. Average daily concentrations of PM of different sizes and of 12 PHAs were measured and comparison between different fuels was attempted in order to assess "real-world" exhaust emissions of different fuels. Due to heterogeneity of experimental conditions in different days and the relatively large measurement uncertainties, the effort was only partially successful, and it was not possible to state any firm conclusion on fuels reliability even if some indications in agreement with literature were found. Nevertheless, the experiment and the data analysis method developed could be of interest as a methodological approach for future experiments aimed at evaluating "real-world" exhaust emissions of single vehicles. © 2005 Elsevier Ltd. All rights reserved.


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