Dispersion modeling is a means of assessing the air quality impact of a facility on the surrounding area.

Air dispersion modeling predicts how pollutants are dispersed in the atmosphere from different sources, taking into account building influences, topography, meteorology, downwind distances and other factors. The model uses this information to mathematically simulate the pollutants downwind dispersion in order to derive concentrations at specified locations.

Computer models are a relatively inexpensive and expedient means of providing air quality information. They may be required for Pollution Prevention Control (PPC) applications or for predicting the future concentration of a particular pollutant after the implementation of a new pollution control program.

Dispersion models have the ability to evaluate a variety of options for managing air quality and so dispersion models are an important planning tool.  RPS has extensive expertise in modeling for new and existing installations and planning applications.