Industrial Dispersion Modelling

Air quality dispersion modelling for stationary emission sources is commonly performed to assess compliance for regulatory purposes, operating permits, or as part of environmental assessments. Modelling can be performed for single sources or to determine combined impacts from multiple sources. Several years worth of meteorological data is typically considered and a wide variety of pollutants and odours can be evaluated.

Pollutant concentrations and odour levels can be predicted at property lines as well as at discrete on- and off-site locations, and can be compared against applicable air quality standards, criteria or guidelines. Modelling scenarios can account for operating loads and emission control technologies, as well as evaluating the effects of stack height, stack to receptor separation distances, and other stack parameters such as exit velocity and temperature.

Results can be produced to show the extent, magnitude and frequency of impact, and can be used develop mitigation strategies, if needed. Novus’ modelling capabilities include ISC3, AERMOD, and CALPUFF.