Air Quality Modeling Training

Trinity is perhaps best known for its expertise in air dispersion modeling - as modelers of routine as well as specialized and complex scenarios, authors of BREEZE modeling software, and instructors of air dispersion modeling theory, application, and review. We offer several modeling classes to meet your specific needs and each class is instructed by modeling gurus who have strong scientific and practical understanding as well as great presentation skills.


Trinity is perhaps best known for its expertise in air dispersion modeling - as modelers of routine as well as specialized and complex scenarios, authors of BREEZE modeling software, and instructors of air dispersion modeling theory, application, and review. We offer several modeling classes to meet your specific needs and each class is instructed by modeling gurus who have strong scientific and practical understanding as well as great presentation skills.


Accidental Release Modeling Workshop with BREEZE Incident Analyst

This 2-day course will provide participants with an in-depth understanding of common source term calculation methods and impact analysis models in order to evaluate potential hazards (including toxics, fires, and explosions) due to accidental release of chemicals under various situations. The technical methods and models to be discussed and used during the course are recognized globally and used routinely in the United States to fulfill a variety of regulatory requirements (e.g.,risk management planning, emergency response and management, and process safety management). The course will also include hands-on modeling exercises using BREEZE Incident Analyst. Upon completion of the course, attendees will:

  • Understand and know how to utilize basic technical approaches for accidental release modeling analyses
  • Learn about common source term calculation methods
  • Grasp the use of BREEZE Incident Analyst to conduct accidental release modeling analyses
  • Gain practice using BREEZE Incident Analyst’s post-processing, 3D Analyst, to analyze modeling results 

Type Date Location
Classroom Nov 02 - 03, 2017 - 8:00 AM - 5:00 PM Dallas, TX


AERMOD Modeling Computer Lab

Trinity Consultants offers this 2 day course to provide hands-on instruction on the use of AERMOD, the U.S. EPA's preferred computer model recommended for estimation of ambient impacts of air pollutants emitted from industrial sources. This course reviews the scientific theory behind these dispersion models with an emphasis on formulating and conducting an air quality analysis from start to finish utilizing the refined model options of AERMOD, its meteorological processor AERMET, and terrain processor AERMAP. During the course, students will use BREEZE® modeling software to analyze case studies and gain practical experience in processing meteorological and geophysical data and source inputs to the models, running and analyzing model output, and post-processing results to visualize and document predicted impacts.  Course completion will enable attendees to:

  • Understand the basics of the AERMOD model, input data, and model options
  • Carry out a typical AERMOD modeling analysis
  • Produce and correctly interpret tables, plots, and other output from AERMOD

Type Date Location
Classroom Oct 19 - 20, 2017 - 8:00 AM - 5:00 PM Seattle, WA


Air Quality Dispersion Modelling for Managers in British Columbia

This 1-day course provides environmental managers, plant managers, and others with air quality responsibilities with a broad understanding of air dispersion modeling as a tool for compliance studies, permitting submittals, or air quality assessments. The course covers the fundamental modelling concepts as well as regulatory requirements for modelling in British Columbia. Screening and refined modelling tools are introduced, including commonly used models in British Columbia: AERSCREEN, AERMOD, and CALPUFF. The courses combines short lecture and interactive classroom example problem sets for maximum comprehension. Topics include:

  • Regulatory Requirements in British Columbia for Air Dispersion Modelling
  • Overview of the Guidelines for Air Quality Dispersion Modelling in British Columbia
  • New interim 1-hours B.C. NO2 and SO2 Air Quality Objectives
  • PM2.5 issues and possible solutions
  • Modelling best practices and common pitfalls

Type Date Location
Classroom Oct 25, 2017 - 8:00 AM - 5:00 PM Vancouver, BC


Complimentary 1-Hour Online Demonstration of BREEZE ExDAM

Join us for a 1-hour complimentary demonstration of BREEZE ExDAM (Explosion Damage & Injury Assessment Model). During this online demonstration, we will present an overview of the software features and capabilities, and will then demonstrate everything from the model setup process in BREEZE ExDAM to analyzing the model results. We will show a handful of high explosive and vapor cloud explosion modeling scenarios and will also demonstrate the use of the 3D Extend and HExFRAG modules. Upon completion of the demonstration, we will be happy to answer any questions you have on BREEZE ExDAM.

No sessions are scheduled right now.


Complimentary 1-Hour Online Demonstration of BREEZE Incident Analyst

Join us for a complimentary 1-hour online demonstration of BREEZE Incident Analyst. During this online demonstration, we will present an overview of the software features and capabilities, and will then demonstrate the model setup process for a handful of toxic dispersion, fire, and explosion modeling scenarios using the models incorporated into Incident Analyst. We will also demonstrate the use of the post-processing program, BREEZE 3D Analyst, to analyze the model results. Upon completion of the demonstration, we will be happy to answer any questions you have on BREEZE Incident Analyst.

Type Date Location
Webinar May 31, 2017 - 8:00 AM - 9:00 AM Central time Online
Webinar May 31, 2017 - 3:00 PM - 4:00 PM Central time Online


Dispersion Modeling for Managers

This 1-day course provides environmental managers, plant managers, and others with air quality responsibilities with a broad understanding of air dispersion modeling as a tool for compliance studies or permitting submittals. The course covers the fundamental modeling concepts as well as regulatory requirements for state and federal permitting. Screening and refined modeling tools are introduced. The courses combines short lecture and interactive classroom example problem sets for maximum comprehension. Topics include:

  • Regulatory requirements for air dispersion modeling (NAAQS, PSD increments, significant air impacts, Class I analysis)
  • New short-term SO2 and NO2 NAAQS
  • PM2.5 issues and possible solutions
  • U.S. EPA’s ongoing efforts to update models
  • Modeling best practices and common pitfalls

Type Date Location
Classroom Sep 19, 2017 - 8:00 AM - 5:00 PM Columbus, OH


Fundamentals of Air Dispersion Modeling

This intensive 2-day course is designed for entry level engineers, dispersion modelers, and meteorologists or others wanting to deepen their understanding of air dispersion modeling principles. Concise lectures supplemented by multi-media example problem sets, a short hands-on introduction to computer-based modeling software, and group discussions are used to maximize comprehension. Students learn how models incorporate the effects of transport and dispersion, atmospheric turbulence, stack characterization, building downwash, and terrain impacts with emphasis on U.S. EPA models such as AERMOD, AERSCREEN, and a brief introduction to CALPUFF, CAMx, and CMAQ. Participants learn about:

  • Modeling theory, U.S. EPA models, and model selection
  • Role and sources of meteorology
  • Model use and interpretation within regulatory and non-regulatory contexts of application

Type Date Location
Classroom Oct 17 - 18, 2017 - 8:00 AM - 5:00 PM Seattle, WA


Practical Air Dispersion & Accidental Release Modeling Workshop – International

This 3-day course focuses on the fundamentals of air dispersion modeling, air dispersion modeling with AERMOD and CALPUFF, and accidental release modeling with BREEZE Incident Analyst. It provides hands-on instruction with all of these programs to those who wish to use the models, sharpen their existing modeling skills, or better understand results prepared by others. It is a combination of the AERMOD Modeling Computer Lab and Accidental Release Modeling Workshop with BREEZE Incident Analyst courses, with additional focus on developing a strong understanding of model fundamentals. All attendees who register for this course will receive a complimentary 30-day trial of BREEZE AERMOD, CALPUFF, Incident Analyst, and the post-processing program (3D Analyst).

Type Date Location
Classroom Jul 26 - 28, 2017 - 8:00 AM - 5:00 PM Mississauga, CN
Classroom Sep 06 - 08, 2017 - 8:00 AM - 5:00 PM Tokyo, Japan
Classroom Oct 16 - 18, 2017 - 8:00 AM - 5:00 PM Frankfurt, Germany
Classroom Dec 11 - 13, 2017 - 8:00 AM - 5:00 PM Dubai, U.A.E.


Practical Air Dispersion and Accidental Release Modeling Workshop – International

This 3-day course focuses on the fundamentals of air dispersion modeling, air dispersion modeling with AERMOD and CALPUFF, and accidental release modeling with BREEZE Incident Analyst. It provides hands-on instruction with all of these programs to those who wish to use the models, sharpen their existing modeling skills, or better understand results prepared by others. It is a combination of the AERMOD Modeling Computer Lab and Accidental Release Modeling Workshop with BREEZE Incident Analyst courses, with additional focus on developing a strong understanding of model fundamentals. All attendees who register for this course will receive a complimentary 30-day trial of BREEZE AERMOD, CALPUFF, Incident Analyst, and the post-processing program (3D Analyst).

Type Date Location
Classroom Aug 16 - 18, 2017 - 8:00 AM - 5:00 PM Lima, Peru


Practical Air Dispersion Modeling Workshop

This 3-day course is designed for environmental professionals with little dispersion modeling experience who wish to use the AERMOD model or to better understand AERMOD results prepared by others. It is similar to the two-day AERMOD Modeling Computer Lab course, with additional focus on developing a strong understanding of model fundamentals. Course topics include Gaussian model behavior, source characterization, building and terrain data, and results interpretation. The course includes hands-on modeling exercises and interactive lecture sessions. Course completion will enable attendees to:

  • Develop a strong understanding of the AERMOD model, its input data, and model options
  • Carry out a typical AERMOD modeling analysis
  • Produce and correctly interpret tables, plots, and other output from AERMOD

Type Date Location
Classroom Jun 07 - 09, 2017 - 8:00 AM - 5:00 PM Miami , FL
Classroom Nov 08 - 10, 2017 - 8:00 AM - 5:00 PM Philadelphia, PA


Practical Air Dispersion Modeling Workshop - International

This 2-day course provides hands-on instruction on the use of AERMOD to those who wish to use the model, sharpen their existing AERMOD modeling skills, or better understand AERMOD results prepared by others. It is similar to the two-day AERMOD Modeling Computer Lab course, with additional focus on developing a strong understanding of model fundamentals. The course includes hands-on modeling exercises and interactive lecture sessions, with topics including Gaussian model behavior, source characterization, building and terrain data, and results interpretation. By the completion of this course, attendees will be able to:

  • Develop a strong understanding of the AERMOD model, its input data, and model options
  • Carry out a typical AERMOD modeling analysis
  • Produce and correctly interpret tables, plots, and other output from AERMOD

No sessions are scheduled right now.