Category: AERMOD

  • Dispersion Modeling Audits: Model Results and Other Issues

    Dispersion Modeling Audits: Model Results and Other Issues

    On October 9th, 2018, the Texas Commission on Environmental Quality (TCEQ) announced and introduced its plan to expedite air quality permit application reviews at its Autumn Environmental Conference. TCEQ rolled out spreadsheet workbook templates that would take the place of many of the forms required for an air quality permit application. The rationale for the […]

  • Dispersion Modeling Audits: Representation Accuracy

    Dispersion Modeling Audits: Representation Accuracy

    Remember how we used to shop in an actual store. Remember going to the video store for tapes and/or DVDs. Think of how things are now. Those changes did not occur overnight. Also, the way these companies started out is not at all the way they ended up being today. Amazon sold books. Netflix sent […]

  • Dispersion Modeling Audits: The Audit Process

    Dispersion Modeling Audits: The Audit Process

    I do not go out to eat that much. The main reason is, eating a meal outside of my home, stresses me out. At home, I know where everything is. I know the format of how the food is going to be dispersed and served. I know where all the tools are. I know where […]

  • Call for Forward-Looking Companies

    Call for Forward-Looking Companies

    Sometimes I really wonder if I am a clairvoyant. The topic for this month’s webinar series was decided upon months ago. I knew the TCEQ Autumn Environmental Conference (Air Permitting Workshop) was going to be the week before the webinars were to happen, but there was no conference agenda out until a few week ago. […]

  • Connect Your Modeling Database to Your AQA

    Connect Your Modeling Database to Your AQA

    It is rare to have a dispersion modeling project that you start on and finish without any changes during the process. There is almost always a modification to emission rates or an updated design that moves a source or raises or lowers a stack height. Typically, these changes happen when you are 99% completed with […]

  • Do Shortcuts Really Save Time and Effort?

    Do Shortcuts Really Save Time and Effort?

    We have all taken a shortcut or two. Looking back, did we really save anything or get anything extra out of it? Several years ago, on my commute home from work, I noticed a coworker about 3 or 4 cars ahead of me on the freeway. There was a little congestion, but traffic was still […]

  • The Places You’ll Go

    The Places You’ll Go

    When it was read to you as a child or when you were reading it to children, Dr. Seuss’ “The Places You’ll Go” describes life as one big wonderous wandering adventure. When it comes to dispersion modeling, the last thing I want is an adventure. I guess I am getting old. When I have a […]

  • How To Improve Your Air Quality Analysis Report: Part 4- Output Data Presentation

    How To Improve Your Air Quality Analysis Report: Part 4- Output Data Presentation

    In the early 1800’s, when the first railroad lines were being constructed, miles and miles of track were being laid every day. People were now able to travel great distances unlike they were before, completely unimpeded. Well, not really, at first. In the early days of the railroad, private companies and governments building the railroad […]

  • How To Improve Your Air Quality Analysis Report: Part 3- Input Data Tables

    How To Improve Your Air Quality Analysis Report: Part 3- Input Data Tables

    Have you ever gone to the grocery store for a specific flavor of canned soup? I find myself stepping as far back as the aisle allows so I can see all one million flavors of soup and isolate the one I am looking for. It takes a few minutes to scan through all of the […]

  • How To Improve Your Air Quality Analysis Report: Part 2- Input Data Graphics

    How To Improve Your Air Quality Analysis Report: Part 2- Input Data Graphics

    We have all been in the situation of filling out a paper form where the space for entering your phone number spans the width of the 8½ inch form, even though there are only 10 digits, but the space for your email address, which could be almost any length, is about one inch wide. Why […]