Abstract
In this paper, a nonlinear mathematical model is proposed and analyzed to study the removal of gaseous pollutants and particulate matters from the atmosphere of a city by precipitation. The atmosphere consists of four interacting phases i.e. the raindrops phase, the gaseous pollutants phase, the phase of gaseous pollutants absorbed (dissolved) in rain drops and the phase of particulate matters. The dynamics of these phases is assumed to be governed by ordinary differential equations with source, interaction, removal and recycle terms. The proposed model is analyzed by using stability theory of differential equations. It is shown that the pollutants can be removed from the atmosphere and their removal rates depend mainly upon the rates of emission of the pollutants, rate of rain drops formation and the rate of falling rain drops on the ground. If the rate of precipitation is very high, the pollutants may be removed completely from the atmosphere.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
