Dispersion modelling and impact assessment
We estimate concentrations, potential areas of influence and impacts at relevant receptors, selecting the appropriate model for the source characteristics, terrain, pollutants, spatial scale and assessment context.
Atmospheric dispersion modelling
CALPUFF, AERMOD and other appropriate dispersion models are used to assess impacts at receptors and across the study area.
Accidental release and risk assessment
Potential impacts from accidental releases are assessed using tools suited to the substance, release conditions and risk objective.
Our modelling approach
Define the scope
We define pollutants, operating scenarios, sources, study area and relevant receptors.
Establish the meteorological basis
We process observed or modelled meteorology, developing WRF fields where required by the assessment.
Run the modelling
We configure the selected dispersion model and verify emissions, terrain, source and receptor inputs.
Interpret the results
We present concentrations, maps and receptor results in a form that supports project decisions.
Decision-ready outputs
Environmental assessment
Modelling support for Chile's Environmental Impact Assessment System (SEIA), including submissions and technical responses.
Areas of influence
Identification of potential impact areas and assessment at relevant receptors.
Measures and scenarios
Comparison of operational alternatives, control measures and project conditions.
Typical deliverables
- Methodology summary and modelling assumptions.
- Concentration maps and areas of influence.
- Results at receptors and locations of maximum predicted impact.
- Traceable tables and supporting documentation for technical review.
Need to assess air quality impacts?
We can help select the appropriate model, define the methodology and deliver robust results for assessment, compliance or project decisions.
Contact us View types of models