Lakes Environmental Newsletter
Lakes Software Monthly Newsletter


Monthly Newsletter - June 2023

A&WMA Annual Conference and Exhibition

A&WMA logo  

Lakes Environmental would like to thank everyone who stopped by our booth in Orlando at A&WMAs Annual Conference and Exhibition from June 5-8, 2023.

We trust that you enjoyed your time at this years conference and look forward to working with you throughout the coming year. See you in 2024 at A&WMAs next annual conference in Calgary!

AERMOD View Draw Winners

Those who visited our booth at the A&WMA Annual Conference and Exhibition noted above had the chance to participate in a draw for a FREE 1-year copy of our AERMOD View software.

We would like to take this opportunity to offer our congratulations to our software winner, Daniel Hlaing.

A drawing also took place at the National Tribal Forum on Air Quality in Phoenix (May 1-4, 2023). The winner at this show was James Parsons of the Choctaw Nation of Oklahoma.

Congratulations Daniel and James!

Online AERMOD Training Course Sep 19-20, 2023

AERMOD header

Registrations are already rolling in for our 2-day online AERMOD course taking place on September 19 and 20, 2023 from 8:30am to 5:00pm (Central Time Chicago, USA).

Register now 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 (Sep 19-20, 2023)



Online CALPUFF Training Course Sep 26-27, 2023

CALPUFF header

Our team will present 2 days of online CALPUFF training on September 26 and 27, 2023 from 8:30am to 5:00pm (Central Time Chicago, USA).

Space is limited. Register today!


CALPUFF (Sep 26-27, 2023)



Online CALPUFF Course with CASANZ October 3-6, 2023

holiday header

Together with the Clean Air Society of Australia & New Zealand (CASANZ), we will hold an online CALPUFF air dispersion modeling course. Training will take place in four, 4-hour webinars from October 3 to 6, 2023 from 9:00am to 1:00pm (Australian Eastern Daylight Time) daily.

Register today!

Note: The above course will be based specifically on regulations for the Australia/New Zealand region.


CALPUFF (Oct 3-6, 2023)



Just Announced - New Online AERMOD Courses!

AERMOD header

Were pleased to announce the following upcoming Online AERMOD Air Dispersion Modeling Courses. Join us for world class training from the convenience of your own home or office with our senior level air quality experts!

AERMOD: Oct 17-18, 2023

AERMOD: Nov 7-8, 2023

AERMOD: Dec 12-13, 2023

Online registration is available now. Our online courses sell out quickly! We recommend registering and making payment as soon as possible.

Lakes Environmental Closed for Canada Day Holiday

Lakes Environmental's offices will be closed on Monday, July 3, 2023, to observe the Canada Day holiday. If you have any support questions during that time, please e-mail and we will contact you on Tuesday, July 4, 2023 when our offices reopen.


2023 Course Schedule

Sep 19-20, 2023
Register →

Sep 26-27, 2023
Register →

Oct 3-6, 2023
Register →

Oct 17-18, 2023
Register →

Nov 7-8, 2023
Register →

Dec 12-13, 2023
Register →

aqmis ad


Hourly Concentration Output in CAL3QHCR

CALRoads View includes three mobile source air dispersion models: CALINE4, CAL3QHC, and CAL3QHCR. These models are used for predicting air pollution concentrations of carbon monoxide (CO), nitrogen dioxide (NO2), particulate matter (PM), and other inert gases from idle or moving vehicles.

The CAL3QHCR model is enhanced to process up to one year of hourly meteorological data. However, the output produced by the model is coded to produce values for specific averaging periods. The periods selected for each pollutant may not correspond to local guidelines for modelers outside the United States. To assist these modelers, developers at Lakes Software enhanced the CAL3QHCR executable to produce an Hourly Concentration File. This file is generated automatically with each run performed using Lakes CAL3QHCR executable, so theres no need to enable special options to use it.

Go to the File | Preferences menu and select the CAL3QHCR option from the EPA Models/Limits menu. The default executable is CAL3QHCR_LK.EXE.

Modeling Tip picture

After performing a CAL3QHCR model run, go to the Output menu and select Hourly Concentration File to open the file in a text editor. This is a CSV file so it can be opened directly in spreadsheet programs such as Microsoft Excel for additional data analysis (e.g., calculating non-standard averaging periods).

Modeling Tip picture

Modeling Tip picture



Forest Protection Successfully Leads to Reduced Emissions at Global Scale

June 5, 2023 - New study confirms protected forests preserve equivalent to one year of global fossil fuel emissions through avoided emissions.

Read more →

Underestimated Heat Storage

June 5, 2023 - There are many effects of climate change. Perhaps the most broadly known is global warming, which is caused by heat building up in various parts of the Earth system, such as the atmosphere, the ocean, the cryosphere and the land.

Read more →

Additional Environmental News

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



2023 Conference Schedule

2023 International Emissions Inventory Conference
Sep 26-29, 2023 | Seattle, WA

Learn more →

AWMA Specialty Conference - Environmental Justice: From Policy to Practice
Oct 23-24, 2023 | Arlington, VA

Learn more →


Lakes Footer
Tauria Footer
ENN Footer

Lakes Logo
twitter   facebook   linkedin

1-170 Columbia St. W.
Waterloo, ON N2L 3L3

View Online

This newsletter contains information gleaned from various sources on the web, with complete links
to the sources cited. Organizations cited are in no way affiliated with Lakes Environmental Software.

For more information, please visit our web site at:
All comments and suggestions are welcome.  You can e-mail us at:
Privacy Policy