Estimations of Real-World N2O Emissions from Road Vehicles by Means of Measurements in a Traffic Tunnel
Open Access
- 5 March 1995
- journal article
- research article
- Published by Taylor & Francis in Journal of the Air & Waste Management Association
- Vol. 45 (3) , 186-190
- https://doi.org/10.1080/10473289.1995.10467358
Abstract
Ambient air measurements of N2O, NOx, CO, and HC based on grab sampling were conducted in a major traffic tunnel in Sweden, that carries up to 4,000 vehicles per hour, in order to estimate real-world emissions of N2O for road traffic. Two different methods—relative and mass balance—were used to calculate a N2O emission factor for the mixed vehicle fleet, which gave an average emission factor, at average speeds of 30-70 km/h, of approximately 25 mg N2O/ km, with a range of 7-56 mg/km.Keywords
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