Lakes Environmental Newsletter
Lakes Software Monthly Newsletter


Monthly Newsletter - December 2021

Happy Holidays from Lakes Environmental!

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Our entire staff would like to thank you, our clients and subscribers, for a successful 2021. Best wishes to you and your colleagues for a wonderful holiday season and a happy and healthy New Year. It’s because of you that we love doing what we do! We look forward to working with you in 2022!

Please find below the holiday schedule for Lakes Environmental’s offices:

December 24


December 27


December 31


If you have an urgent matter requiring assistance during the holidays, please e-mail us at and we will respond to your inquiry during regular business hours.

AERMOD View Version 10.2 Released

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Earlier this month, we released AERMOD View Version 10.2. The release includes the following updates:

  • Updated NED Data: Updates for NED 1/3 and NED 1 GEOTIFF automated downloads in Terrain Processor for in-maintenance users.
  • New Reports: Generate reports to summarize results along Plant Boundary receptors.
  • File Maker Update: The Concentration File Maker utility has a new design to improve usability.

Check out our latest release notes for a detailed listing of AERMOD View updates.

If you are currently in maintenance for AERMOD View and did not receive an email regarding this update, please contact us at

If you are a user of AERMOD View but are no longer in maintenance, please contact our sales team at for pricing to renew your software license.

Online CALPUFF Course – Jan 25-26, 2022

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Our top subject matter experts will present 2 days of online CALPUFF training from January 25 to 26, 2022 8:30am to 5:00pm (Central Time UTC-6). The same great course, now from the convenience of your home or office!

Register now before space is gone!


CALPUFF (Jan 25-26, 2022)



Online AERMOD Course – Mar 8-9, 2022

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Don’t miss out on our next available 2-day online AERMOD course taking place on March 8 and 9, 2022 from 8:30am to 5:00pm (Central Time UTC-6).

Register today before space is gone!

Note: Due to the immense popularity of our online courses and small class sizes, we recommend registering and making payment as soon as possible.


AERMOD (Mar 8-9, 2022)




2022 Course Schedule

Jan 25-26, 2022
Register →

Mar 8-9, 2022
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Apr 12-13, 2022
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May 17-18, 2022
Register →

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Concentration File Maker Utility in AERMOD View

The AERMOD air dispersion model allows users to input time-varying concentration data to represent background sources to be added to the model’s calculations. This can be done by directly adding background concentrations to modeled pollutant concentrations or, in the case of nitrogen dioxide (NO2), by adding background ozone or NOx concentrations to assist in estimating how much NO2 is formed through chemical transformation.

In its most detailed state, AERMOD can read hourly background concentration values for specific dates and times corresponding to the modeled run period. For AERMOD to read this data, the modeler must first create the data input file.

Modeling Tip picture
Hourly Background Concentration File Input in AERMOD View’s Source Pathway

Enter the Concentration File Maker utility in AERMOD View which assists users in building a free-formatted data file for easy input to AERMOD.

Modeling Tip picture

Follow the steps below to use the Concentration File Maker utility:

Step 1: From the Specify Data Period panel, select the Start Date and End Date for the file. Click the Modeling Tip picture  button, and the table will automatically populate.

Step 2: Type in concentration values to the Concentration column as desired.

Step 3: To apply the same value to multiple rows at once, highlight the hour rows to which you wish to apply identical concentrations. You may select multiple rows in sequence by pressing down the Shift key or press the Ctrl key to make disjointed selections of hours. You can also select all rows by pressing the Ctrl+Shift+End keys.

Step 4: After selecting the desired rows, specify the concentration value in the Concentration Value panel. Click the Modeling Tip picture  button to apply this value to the selected hours.

Step 5: If data is missing for a specific hour, the row can be left blank. The utility will automatically insert a missing indicator value of -99 for these unspecified hours.

Step 6: To import data from an existing file (e.g., CSV, Excel, TXT), use the Modeling Tip picture  button. After selecting the file, the Import Parameters dialog will allow you specify the variables for import.

Modeling Tip picture

Step 7: Save the file by selecting the Modeling Tip picture  button. The Save As dialog will open allowing you to specify a file name and location to save the file

Step 8: Once saved, you can choose to view the file from the Confirmation dialog.

Modeling Tip picture

The file can be inserted anywhere an hourly concentration data file is needed such as the Source Pathway’s Background Concentrations or the Control Pathway’s NOx to NO2 Options.

After creating the file, it can be reopened in the utility via the Concentration Data File field at the top of the dialog. This makes it easy to edit existing data files.

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A Rocky Fate for Greenhouse Gases

December 1, 2021 - Scientists at the University of Tsukuba used a sophisticated set of experimental tests, including synchrotron X-ray scattering and quantum computer modeling, to study the effect of temperature on the structure of magnesium carbonate. This work may lead to more efficient carbon capture technologies that lock carbon dioxide inside rocks as a way to combat climate change.

Read more →

Rainfall in the Arctic Will Soon Be More Common Than Snowfall

November 30, 2021- More rain than snow will fall in the Arctic and this transition will occur decades earlier than previously predicted, a new study led by the University of Manitoba (UM) reports.

Read more →

Additional Environmental News

Visit the Environmental News Network (ENN), the most dependable online environmental news source!



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