A substantial fraction of the particulate matter released into the atmosphere
by industrial or natural processes corresponds to particles whose aerodynamic
diameters are greater than 50 mm. It has been shown that, for these particles,
the classical description of Gaussian plume diffusion processes, is inadequate
to describe the transport and deposition. In this paper we present new results
concerning the dispersion of coarse particulate matter. The simulations are
done with our own code that uses the Bulirsch Stoer numerical integrator to
calculate threedimensional trajectories of particles released into the
environment under very general conditions. Turbulent processes are simulated by
the Langevin equation and weather conditions are modeled after stable
(Monin-Obukhov length L> 0) and unstable conditions (L <0). We present several
case studies based on Monte Carlo simulations and discusses the effect of
weather on the final deposition of these particles.Comment: In spanish. 11 pages, 4 figs. Conference paper: Proyecto Integrador
para la Mitigaci\'on de la Contaminaci\'on Atmosf\'erica Proyecto Integrador
para la Determinaci\'on de la Calidad del Agua Tercera Reuni\'on Anual
PROIMCA Primera Reuni\'on Anual PRODECA, Agosto, 201
