"Mathematical study of the selective removal of different classes atmospheric aerosols by coagulation, condensation and gravitational settling and health impact (SI-CMMSE 2006)"

Paulino Jose Garcia Nieto (1) , Juan Jose Del Coz Diaz (2) , Angel Martin Rodriguez (2) , José María Matías (3)

1 Mathematics
2 Construction
3 Statistics

The aim of this paper is to study the scavenging efficiencies of aerosol particles after some given dynamical mechanisms of removal known as coagulation, condensation and gravitational settling as a function of time. It also analyses the health impact of aerosol before and after the above dynamical mechanisms by comparing the respirable dust fractions. The well-known equations of scavenging are applied to eight different classes of atmospheric aerosols. From this work it is inferred that respirable dust is scavenged with relative difficulty by coagulation, condensation and gravitational settling. This added complexity means that predicting deposition from the basic theory is much more difficult, and we must rely to a greater extent on experimental data and empirically derived equations. As compared with the initial volume of respirable aerosol, roughly 10% remains after 18 hours of coagulation, condensation and gravitational settling.

Mots clés: Physical Sciences

Paulino Jose Garcia Nieto, Juan Jose Del Coz Diaz, Angel Martin Rodriguez, José María Matías. "Mathematical study of the selective removal of different classes atmospheric aerosols by coagulation, condensation and gravitational settling and health impact (SI-CMMSE 2006)". International Journal of Computer Mathematics, 2008, 85 (03-04), pp.447-460. ⟨10.1080/00207160601161428⟩. ⟨hal-00545344⟩