Benefits of Air Dispersion Modelling
Air emissions from stacks and other sources can cause health and nuisance problems not only in the locality but sometimes 10’s of km away. Air Dispersion Modelling can predict whether there will be problems with emissions from a site and help explore the effect of various solutions.

The Air Dispersion model will take the stack emissions and combine these with the weather conditions and effects of topography (hills, buildings etc.) and then predict the concentration at ground level of the emissions. The concentration of the substances are then generally compared to the Ambient Air Quality standards.

Where the emissions cause a breach of the air quality standards, the ADM can help evaluate solutions. A common solution is to increase the stack height. Low cost solutions could include shutting down processes during adverse weather conditions.

Environmental Efficiency has a range of Air Dispersion Models and our staff include certified AERMOD and CALPUF modellers.