eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences April 2009 21 1 153 156 jusps-B 1089 article M.S. Rudresha 1 R. Jeevan Kumar 2 K.V.S.G. Rao 1 Department of Physics, Sri Siddartha Institute of Technology, Tumkur -5 INDIA Department of Physics, Sri Krishnadevaray University, Anantpur, Andhra Pradesh (INDIA) <p style="text-align: justify;">This work introduces a novel concept entitled &quot;Center of concentration&quot; which is similar to concepts in physics such as &#39;Center of gravity&#39;, and &#39;Center of mass&#39;. It helps in a better understanding of the concentration of emissions from an assortment of stacks of varying heights and different pollutant emissions. Gaussian plume Dispersion Model is used in the study comprising of various Atmospheric stability Classes each of which representing a measure of turbulence in the ambient atmosphere. The effect of wind velocity is also studied. The proposed model helps in protecting and managing ambient air quality.</p> <p>&nbsp;</p> https://ultraphysicalsciences.org/paper/1089/ Atmospheric dispersion modeling Gaussian plume diffusion center of concentration mathematical simulation ambient air quality