Exhaust Emissions From a Waste Collection Vehicles Fleet: A Case Study

The paper presents the main results of a study focused on the definition of exhaust emission factors for a waste collection vehicles fleet, taking into account the specific mission profiles. As a first step, on the basis of the fleet characteristics, different classification criteria were applied, aiming at the identification of suitable vehicle classes. Then, the calculation of the exhaust emissions for each class was based on a two terms equation, the first related to the vehicle travel (considering different sources for the relevant emission factors) and the second to the equipment use, whose contribution is estimated on the basis of different parameters. A computational code was then set up for the evaluation of the daily emission of normalized pollutants for the whole fleet and each required service. The results of different calculations are presented in the paper, referring to the distribution of total emissions between the different vehicles categories and classes, the estimation of the waste fleet contribution to the overall pollution due to road transport in Genoa urban area and the effects of the fleet renewal.