An Analytical Approach for Predicting Atmospheric Concentration of Air Pollutants

Many forms of atmospheric pollution affect human health and the environment at levels from local to global. These contaminants are emitted from diverse sources, and some of them react together to form new compounds in the air. This paper presents a three-dimensional transient equation describing the pollutant transport in the atmosphere. We assume the atmosphere is subjected to pollutant due to the time-dependent source con centration. We use the parameter-expanding method and seek direct eigenfunctions expansion technique to obtain analytical solution of the model. The results are presented graphically and discussed. It is discovered from the results obtained that increase in reaction rate and decrease in wind speed change significantly the atmospheric concentration of air pollutant.