TY  - JOUR
T1  - Variations in the Order of Reaction: An Implication on Atmospheric Diffusion with Transformation and Deposition of SO<SUB>2</SUB> in Smoke Plume
AU - , A.I. Igbafe AU - , S.J. Piketh 
JO  - Environmental Research Journal
VL  - 3
IS  - 1
SP  - 4
EP  - 13
PY  - 2009
DA  - 2001/08/19
SN  - 1994-5396
DO  - erj.2009.4.13
UR  - https://makhillpublications.co/view-article.php?doi=erj.2009.4.13
KW  - SO2
KW  -lagrangian
KW  -dispersion
KW  -transformation
KW  -boundary layer
AB  - An unsteady state Lagrangian diffusion model with consideration for the removal of sulphur dioxide through chemical transformation in the planetary boundary layer has been developed and evaluated in comparison with 2 existing models. The data used were from episodes of industrial emissions in a sub-urban area monitoring studies in South Africa. The effect of varying transformation rate was investigated using the three different overall rate constants for the advection of SO<SUB>2</SUB> in smoke plume between a source (power station smoke stack) and a receptor point (ground based sampling site) under the influence of the local meteorology. The concentration distribution in the along-wind direction revealed that SO<SUB>2</SUB> oxidation rate as second order with deposition as first order predicted the observed ambient concentration to an accuracy of about 91.9%.
ER  -