Air Dispersion Modelling

ORTECH's clients rely on us for comprehensive and state-of-the-science air dispersion modelling. At the local or site-specific level we provide our clients with the expertise to demonstrate regulatory compliance against current and proposed air quality standards and guidelines. On a regional level we provide industry with modelling tools to predict the impact of industrial expansion on regional and transboundary air quality. On a global level ORTECH has provided airshed emissions determinations and global transport modelling of pesticides, greenhouse gases, and mercury.

Regulatory Compliance Dispersion Modelling

set-up and running of industrial air dispersion models such as AERMOD, ISCPrime, ISCST3, O.Reg 346, SLAB, CALPUFF, etc.
acquisition and pre-processing of terrain and complex meteorological input data; on-line access to current input databases
output of modelling results in regulatory-compliant formats
modelling of complex building effects including plume down-wash and topographical effects
special-source modelling, such as for fugitive dust, mobile sources and odours
on-site installation of modelling software and training for use by plant staff

Regional & Global Transport Modelling

soil/air exchange modelling of semi-volatile organic compounds
development of a Pesticide Emissions Model to predict local and long-range pesticide transport, for existing and potential new pesticide formulations
mainframe computer data system development to produce pollutant emissions fields suitable for long-range transport models
generation of temporally apportioned emissions associated with sources in finely resolved grid units in North America.

For more information contact:
Kathleen Hearn
Environmental Specialist
1.877.774.6560 ext. 631.

(PDF) Fact Sheet