WIT Press


The Influence Of Fast Chemistry On The Composition Of NO% In The Emission Input To Atmospheric Dispersion Models

Price

Free (open access)

Paper DOI

10.2495/EURO991532

Volume

36

Pages

5

Published

1999

Size

418 kb

Copyright

WIT Press

Author(s)

N. Moussiopoulos, G. Theodoridis and V. Assimakopoulos

Abstract

The Influence of Fast Chemistry on the Composition of NO% in the Emission Input to Atmospheric Dispersion Models A contribution to subproject SATURN N. Moussiopoulos, G Theodoridis and V. Assimakopoulos Laboratory of Heat Transfer and Environmental Engineering, Aristotle University Thessaloniki, 540 06 Thessaloniki Greece Introduction Emission input data needed for atmospheric dispersion simulations are usually provided by suitable emission models. These data are considered at a composition depending merely on the source type regardless of the dispersion model scale. However, chemical reactions with small time scales of the order of a few minutes can have a decisive effect on the composition of the emitted pollutants before scales are reached which are comparable to the resolution of mesoscale models. Microscale models, taking into account such chemical processes as NO-NC^-Os fast cycles, can provide m

Keywords