title: Impact of bioethanol fuel implementation in transport based on modelled acetaldehyde concentration in the urban environment.
abstract: This study shows the results obtained from emission and air dispersion modelling of acetaldehyde in the city of Oslo and associated with the circulation of bioethanol vehicles. Two scenarios of bioethanol implementation, both realistic and hypothetical, have been considered under winter conditions; 1) realistic baseline scenario, which corresponds to the current situation in Oslo where one bus line is running with bioethanol (E95; 95% ethanol-5% petrol) among petrol and diesel vehicles; and 2) a hypothetical scenario characterized by a full implementation of high-blend bioethanol (i.e. E85) as fuel for transportation, and thus an entire bioethanol fleet. The results indicate that a full implementation of bioethanol will have a certain impact on urban air quality due to direct emissions of acetaldehyde. Acetaldehyde emissions are estimated to increase by 233% and concentration levels increase up to 650% with regard to the baseline.
authors: NILU - Norwegian Institute for Air Research, Instituttveien 18, Kjeller 2027, Norway.
authors: Ingrid
authors: I
authors: Sundvor
authors: NILU - Norwegian Institute for Air Research, Instituttveien 18, Kjeller 2027, Norway. Electronic address: sla@nilu.no.
authors: Susana
authors: S
authors: López-Aparicio
mesh_terms: D000079:Acetaldehyde / Q000032:analysis*; D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data*; D056804:Biofuels; D008962:Models, Theoretical; D018986:Motor Vehicles / Q000706:statistics & numerical data*; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D056804:Biofuels; D001335:Vehicle Emissions; D000079:Acetaldehyde
keywords: Acetaldehyde; Bioethanol; Dispersion modelling; Emission factors