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This workshop uses a hands-on approach to look at the newest family of environmental models. The approach will be very practical and will include a number of case studies and a hands-on workshop for use of the models.

Course Outline

After participating in this course, you will be able to:
discover improved concepts behind air dispersion and transport of pollutants
gain insight and determine source effective height
select the appropriate computer model(s)
simulate real data having understood the process on data collection, model initialization and working of the simulation model
develop model toxic releases and dispersion


The assessment of on- and off- property impact of pollutants is usually handled by means of transport and dispersion models. These models continue to become more complex as the accuracy with which they can simulate pollutant impact increases. Increasingly regulators are looking to newer models to simulate impacts for use in the Approvals process and in the assessment of incident risk. In particular,   O. Reg. 419/05 regulates the kinds of dispersion models which may be used and the conditions under which they may be applied. This workshop uses a hands-on approach to look at the newest family of environmental models. The approach will be very practical and will include a number of case studies and a hands-on workshop for use of the models.


• To familiarize participants with the basics of air dispersion and transport modelling
• To enable participants to set up and use screening and refined models for permit applications as well as incident risk assessment.

Who Should Attend

Environmental professionals working in the areas of assessment, prediction and mitigation of air pollution impact.  They will be drawn from industrial facility or utility, environmental management and technical staff, as well as consultants, lawyers and regulators. Numbers will be restricted to allow each participant to work with the software on their laptops under instructor guidance.

Special Requirement
To maximize your benefits, please bring your laptop to the workshop. Computer specifications are:
   • Windows 2000 or Windows XP Operating System
   • Pentium 4, 2.4 GHz or better
   • 10GB of free hard disk or more
   • Memory RAM 512 Mb or more

Instructor:  Stephen Lamming, AMEC Earth & Environmental

Program Outline

Day I

Part I - Air Dispersion Models

The System and its Implementation

8:00      Registration and Coffee

8:20      Welcome, Introduction, Workshop Preview, Learning Outcomes and the Assessment Method

8:30      Overview - Theory and Objectives of Air Dispersion Modelling
            • Objectives of dispersion modelling
            • Development of air dispersion models
            • The factors that impact dispersion

9:15      The Regulatory Process for Air Emissions
            • Impact assessment
            • Assessment and approvals
            • Risk-based approaches
            • Working with the regulator

9:45      Impact Standards
            • Modelling standards and guidelines
            • Sources of information
            • Monitoring and modelling
            • Odour modelling
            • Case study

10:30    Refreshments and Networking

11:00    Guidance on the Use of Air Quality Models
            • When a specific model should be used – Gaussian and puff models
            • Screening versus detailed model use
            • Guidelines for the use of dispersion models
            • Problems and pitfalls

12:00    Lunch

1:00      Meteorology and Dispersion
            • Meteorology and pollution transport
            • Short and long range influences
            • Meteorological data
            • Data quality and variability
1:30      Source Effective Height
            • Plume rise
            • Downwash
            • Wake effects

2:00      Screening Models
            • Use of screening models
            • Model deficiencies
            • Case study

2:30      Refreshments and Networking

2:45      Modelling Air Toxics Releases
            • Accidental releases
            • Emissions impact footprint
            • Forensic modelling
            • Risk analysis

3:15      Other Models
            • CALPUFF
            • Airshed models

4:00      Adjournment

Day II

Instructor:  Thomas G. Grosch, Trinity Consultants, Inc.

9:30       AERMOD Input File Structure: Pathways and Keywords

10:00      AERMOD Model Objects
               • Sources
               • Receptors
               • Buildings

10:30      Refreshments and Networking

10:45      Class Exercise – A Simple AERMOD Model Run
                • Creating the AERMOD input file
                • Executing the AERMOD FORTRAN executable
                • Reviewing AERMOD model output

12:00      Lunch

1:00       Modelling Building Downwash in AERMOD
               • The BPIP Model
               • The BPIP File Input Structure
               • BPIP Output

1:30       Class Exercise – Running BPIP and AERMOD
               • Creating the BPIP input file
               • Executing the BPIP FORTRAN executable
               • Incorporating BPIP results into AERMOD
               • Executing AERMOD with BPIP results
               • Comparing AERMOD results with buildings to those without

2:30       Refreshments and Networking

2:45       Terrain Effects and AERMAP
               • The divided streamline approach in AERMOD
               • The Terrain Domain (Hill Height Boundary) and the 10 percent slope rule
               • DEM Data Issues
               • The AERMAP terrain preprocessor

3:15    Class Exercise – Running AERMAP and AERMOD
         • Creating the AERMAP input file
            • Executing the AERMAP FORTRAN executable
            • Incorporating AERMAP results into AERMOD
            • Executing AERMOD with AERMAP terrain results
            • Comparing AERMOD results with terrain to those without

4:30    Adjournment


Instructor: Thomas G. Grosh, Trinity Consultants, Inc.

8:30      Day | Review

9:00      Introduction to Turbulence
              • Planetary Boundary Layer Theory
              • Turbulence Parameterization

10:00   Refreshments and Networking

10:15    Processing Meteorological Data with AERMET
               • "Representative" meteorological data defined
               • AERMET program structure
               • Surface roughness, Bowen ratio, and albedo
               • Subjective land use analyses

10:45     Demonstration of AEMET Data Processing
               • Job Options
               • Metprep Options
               • Land Use Options
               • Running AERMET
               • Review of AERMET output

12:00      Lunch

1:00        Special Topic – Wet and Dry Deposition
               • Data requirements
               • Model options including depletion
               • Modeling Demonstration

1:30       Other Model
               • INPUFF - demo
               • CALPUFF - demo
               • Regional Models

2:45       Refreshments and Networking

3:00       Graphical User Interfaces (GUI)
               • GIS / Projections
               • Running Day II scenarios in the GUI
               • Working with base maps
               • Contouring results

4:00       Questions and Answers and Feed back to Participants on Achievement of Learning Outcomes

4:30       Concluding Remarks and Final Adjournment

Prerequisites & Certificates

Certificates offered

1.8 CEU / 18 PDH

Cancellation Policy
To withdraw from a course, you must send a request, in writing, with the official receipt to our office. Fifteen or more business days in advance: full refund less $50.00 administration charge. Five to fifteen business days in advance: non-refundable credit of equal value for any future EPIC seminar within one year. Credits are transferable within your organization. In case of an unexpected event occurring after this time, you may send someone else to take your place without any additional cost.
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Here are some reviews of the training vendor.
The course was very well presented and the course instructor was absolutely amazing.
Reviewed by 2013
Our instructor, Stephen Lamming, was outstanding and a true expert in his field. He was able to complement the technical air monitoring information with practical real life examples which was highly beneficial. He is an excellent communicator and was highly interactive with the course attendees. This course was recommended to me because Stephen Lamming does an outstanding job. I was very impressed with this course and have subsequently recommended it to my colleagues.
Reviewed by 2012
Would have liked more interactive problem solving.
Reviewed by 2011

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