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Lakes Environmental Newsletter

Monthly Newsletter - August 2016


Lakes Environmental e-Newsletter

Emissions Inventory - Atmospheric Science - IT Solutions


In this issue:

  • News & Events
  • Upcoming Courses
  • Modeling Tip Video: Coordinate Converter
  • Articles
  • Upcoming Conferences & Trade Shows

News & Events

US EPA Approves New Regulatory Versions of CALPUFF and CALMET

On July 26, 2016, the US EPA announced the immediate availability of updated versions of CALPUFF and CALMET (version 5.8.5, level 151214). These executables replace CALPUFF and CALMET version 5.8.4 (level 130731) as the US EPA approved versions.

The updates include numerous bug fixes previously implemented by model developers but never released as regulatory approved versions. The fixes affect several different aspects of the models including:

  • Adjustments and bug fixes for PRIME building downwash implementation
  • Wind rotation bug fix when similarity extrapolation of surface stations was enabled
  • Improved error handling and more

This update does not affect CALPOST. For more information including a detailed report which summarizes each bug fix, please visit the US EPA SCRAM website.

The regulatory version of the CALPUFF Modeling System now includes:

  • CALPUFF version 5.8.5, level 151214
  • CALMET version 5.8.5, level 151214
  • CALPOST version 6.221, level 082724

Lakes Environmental is currently working on a new version of CALPUFF View that will incorporate these changes.

If your CALPUFF View license is no longer in maintenance, please contact our sales team at for pricing to update your software.

Recent SCRAM Updates from the U.S. EPA

In addition to last month’s update in regulatory versions of the CALPUFF modeling system, the U.S. EPA has recently made several additions to the Support Center for Regulatory Atmospheric Modeling webpage.

  1. Since the 11th Modeling Conference (held in August 2015), the EPA has issued eight concurrence memoranda via Model Clearinghouse. Four memos approved use of the ARM2 technique for modeling NO2 in AERMOD while the other four approved use of the adjusted u-star (ADJ_U*) beta option in AERMET. All memos are available on the MCISRS webpage by searching records from 2015-2016.

  2. On August 1, 2016, the EPA released draft guidance on Significant Impact Levels (SILs) for ozone and PM2.5 in the Prevention of Significant Deterioration (PSD) permitting program. The guidance and supporting documentation are available for review on the New Source Review Permitting website, and the EPA is accepting public comment on the package through to September 30, 2016.

  3. On August 4, 2016, the EPA updated the draft SO2 Modeling Technical Assistance Document to “clarify receptor placement and the minimum number of years to model”.

AERMOD Course in Toronto - Sep 26-27, 2016 - Almost Full!

The AERMOD course being held in Toronto from September 26-27, 2016 has just a few spots still available.

Early Registration Discount Ends: August 26, 2016

Register today before space is gone!

Course: AERMOD (Sep 26-27, 2016)
Location: Toronto, Ontario
Info: Registration Form


AERMOD & CALPUFF Courses in São Paulo, Brazil – Nov 7-10, 2016

Lakes Environmental will present four days of AERMOD and CALPUFF training in São Paulo from November 7-10, 2016.

Online Registration now Available!

Early Registration Discount Ends: October 7, 2016

Course: AERMOD (Nov 7-8, 2016)
Course: CALPUFF (Nov 9-10, 2016)
Location: São Paulo, Brazil
Info: Registration Form


AERMOD Course in Orlando, Florida – Nov 17-18, 2016

Lakes Environmental will hold two days of AERMOD training in Orlando from November 17-18, 2016.

Register today to take advantage of our early registration discount!

Early Registration Discount Ends: October 17, 2016

Course: AERMOD (Nov 17-18, 2016)
Location: Orlando, FL
Info: Registration Form


Lakes Environmental Closed for Labor Day Holiday

Lakes Environmental's Waterloo and Dallas offices will be closed on Monday, September 5, 2016 to observe the Labor Day holiday. If you have any needs during that time, please e-mail us at and we will contact you on Tuesday September 6, 2016 when our offices reopen.

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Upcoming Courses





Sep 26-27, 2016


Toronto, ON

Register Now

Nov 7-8, 2016
Nov 9-10, 2016


São Paulo, Brazil

Register Now

Nov 17-18, 2016


Orlando, FL

Register Now

Feb 6-7, 2017
Feb 8-10, 2017


Dallas, TX

Coming Soon

May 1-2, 2017
May 3-5, 2017


Las Vegas, NV

Coming Soon

For more information on the above courses, including registration information, location, and course outlines, please visit our web site:

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Modeling Tip

Coordinate Converter

An important part to setting up a dispersion modeling project is choosing your map projection settings so data can be geo-referenced to a real-world location. In order to make this process easier for users, Lakes Environmental includes the Coordinate Converter utility with most of our commercial software products.

View our latest Modeling Tip video to learn more about the Coordinate Converter.

Submit Your Modeling Tips Today!

We are currently accepting submissions for the Monthly Modeling Tip section that appears in our newsletters. If you have a modeling tip that may benefit our readers, please send it to us at Your name and the name of your organization will appear below the tip providing you with an opportunity for increased exposure.

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EPA Report Tracks our Changing Climate

August 2, 2016 - ATLANTA - The U.S. Environmental Protection Agency (EPA) today released a report that shows compelling and clear evidence of long-term changes to our climate, and highlights impacts on human health and the environment in the United States and around the world. The report, Climate Change Indicators in the United States, features observed trend data on 37 climate indicators, including U.S and global temperatures, ocean acidity, sea level, river flooding, droughts and wildfires.

Read Full Article Here

Air Pollution Linked To Brain Disorders & Diminished Cognitive Abilities (American Psychological Association)

July 30, 2016 - Dirty gray particulates hanging around as you inhale aren’t too helpful for public health. Particulates spewing from ICE cars, trucks, and buses affect many people worse than pollen. New research by the American Psychological Association reports that I am not alone in being concerned about this.

Read Full Article Here

EPA Determines that Aircraft Emissions Contribute to Climate Change Endangering Public Health and the Environment

July 25, 2016 - WASHINGTON- The U.S. Environmental Protection Agency (EPA) today finalized a determination under the Clean Air Act that greenhouse gas (GHG) emissions from certain types of aircraft engines contribute to the pollution that causes climate change and endangers Americans’ health and the environment. The findings are for carbon dioxide (CO2), methane, nitrous oxide, hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6), all of which contribute to GHG pollution that represents the largest driver of human-caused climate change. These particular GHGs come primarily from engines used on large commercial jets.

Read Full Article Here

US EPA, US DOT, California’s Air Resources Board Issue Draft Technical Assessment Report of Greenhouse Gas Emissions and Fuel Economy Standards for Model Year 2022-2025 Cars and Light Trucks

July 18, 2016 - WASHINGTON- The U.S. Department of Transportation (DOT), the U.S. Environmental Protection Agency (EPA), and the California Air Resource Board (CARB) today took the first step in the mid-term evaluation of the National Program for greenhouse gas emissions and fuel economy standards for light duty cars and trucks by releasing a draft Technical Assessment Report (TAR) for public comment. The release of the TAR delivers on a commitment that EPA made in 2012 as part of the rulemaking establishing a National Program for the 2017-2025 period. The draft TAR covers model years 2022-2025.

Read Full Article Here

Premature Deaths Will Rise Minus Air Quality Norms: IEA

July 13, 2016 - Less than one per cent of India’s population lives in areas that meet World Health Organisation air quality guidelines. But if stringent air pollution regulations are in place, this could increase to almost 10 per cent by 2040, says a study by the International Energy Agency (IEA).

The “Energy and Air Pollution, World Energy Outlook Special Report”, released in June, assesses the role of energy in air pollution and makes emissions projections for 2040 based on two scenarios.

Read Full Article Here

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Upcoming Conferences & Trade Shows

Aug 18-19, 2016

6th International Conference on Environmental Pollution and Remediation (ICEPR 2016)
More Info

Budapest, Hungary

Aug 22-24, 2016

ICCE 2016: 5th International Conference & Exhibition on Clean Energy
More Info

Montréal, Québec, Canada

Aug 26-28, 2016

2016 International Conference on Clean Water, Air & Soil
More Info

Beijing, China

Aug 29 - Sep 02, 2016

More Info

Busan, South Korea

Sep 26-27, 2016

18th International Conference on Environment and Climate Change
More Info

Paris, France

Nov 3-4, 2016

2016 EIANZ Annual Conference
More Info

Brisbane, QLD, Australia

Nov 6-10, 2016

SETAC World Congress and Annual Meeting
More Info

Orlando, FL, USA

Jan 5-7, 2017

IAFOR International Conference on Sustainability, Energy & the Environment
More Info

Honolulu, HI, USA

Jan 16-19, 2017

World Future Energy Summit
More Info

Abu Dhabi, UAE

Jan 22-26, 2017

American Meteorological Society (AMS) 97th Annual Meeting
More Info

Seattle, WA, USA

Feb 8-10, 2017

Energy, Utility & Environment Conference (EUEC) 2017
More Info

San Diego, CA, USA

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About this Newsletter

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.

Lakes Environmental Software is a leading environmental IT company that offers a complete line of air dispersion modeling, risk assessment, emissions inventory, and emergency release software as well as training and custom software services. With satisfied users located around the globe, Lakes Environmental Software will continue to revolutionize the environmental software field.

For more information please visit our web site at:  You may also contact us by phone at (519) 746-5995 or by fax at (519)746-0793.

All comments and suggestions are welcome.  You can e-mail us at:

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