ISC-AERMOD View Version 5.1 Released!

Lakes Environmental is proud to announce the release of ISC-AERMOD View Version 5.1 on August 18, 2005.  This new version includes features such as the ability to rotate buildings and an export to Excel option for the contents of the EVALFILE. Furthermore, we have improved features such as the ‘Save Project As’ and Project Repair options.  If you are currently in maintenance and did not receive an email regarding the update, please contact us at support@weblakes.com.

If you are a user of ISC-AERMOD View, and you are no longer in maintenance, contact us for appropriate pricing information for your maintenance renewal.

U.S. EPA 8th Conference on Air Quality Modeling

The 8th Conference on Air Quality Modeling is to be held this month on September 22nd and 23rd in Research Triangle Park, North Carolina.  The conference will provide its attendees with an overview of the updates to current U.S. EPA air quality models.  In addition, a public forum will be held to discuss the future application of air quality models.  Lakes Environmental’s president and founder, Dr. Jesse Thé, will attend the conference.  Information about the conference can be found by visiting the U.S. EPA website at https://www.epa.gov/scram8thmodconf.htm.

New MOE Air Quality Regulation (419/05)

The Ontario Ministry of the Environment (MOE) has announced the introduction of Regulation 419/05, Air Pollution – Local Air Quality.  The new regulation, which is designed to replace Regulation 346 “General – Air Pollution”, will become effective on November 30, 2005.  As part of the McGuinty government’s Five-Point Action Plan, this new regulation includes the approval and introduction of new air dispersion models such as the U.S. EPA’s SCREEN3, ISCPRIME, ISCST3, and AERMOD.  As a result, Lakes Environmental will begin to incorporate tools in its ISC-AERMOD View software packages to facilitate air dispersion modelling in accordance with MOE standards.  For more information on this new regulation, visit the MOE website at https://www.ene.gov.on.ca/envision/AIR/regulations/localquality.htm.

Lakes Environmental, under contract with MOE - project number SSB-034875, developed the "Proposed Guidance for Air Dispersion Modelling" to support the new MOE Air Quality Regulation.
https://www.ene.gov.on.ca/envision/techdocs/3614e02.htm

See link below for the final guidance for demonstrating compliance with the air dispersion modelling requirements set out in Ontario Regulation 419/05 Air Pollution – Local Air Quality:
https://www.ene.gov.on.ca/envision/gp/5165e.pdf

We’ve set a number of training dates for 2005, with additional courses to be announced.  Please contact us at training@weblakes.com for international or customized training needs.

AERMOD & ISCST3 Courses

CALPUFF Courses

If you are interested in attending a CALPUFF course, please contact us at training@weblakes.com.

Lakes Environmental Customized Courses

Lakes Environmental offers a variety of on-site, customized courses for all of your air dispersion modeling needs.   For information on pricing and availability, please email us at training@weblakes.com.

For more information on these courses, such as registration information and course outlines, please visit our website:https://www.weblakes.com/courses.html.

Averaging Periods and Deposition

When performing deposition calculations using the ISC or AERMOD models, “averaging period” can be a confusing term, and it turns out to be a misnomer in this circumstance.

When an averaging period is selected for concentration calculations, the output value is the average of the hourly concentrations within that period.   However, when an averaging period is selected for a deposition calculation, the output value is in fact the sum of the amount deposited (accumulated) each hour, for every hour within the period.  Hence, for deposition, the averaging period is not a true averaging period.

To further clarify, for concentration, the maximum value for an averaging period will decrease and the averaging period increases, as the average of several values cannot exceed the maximum.  On the other hand, the maximum value for a deposition "averaging period" will increase as the averaging period increases, as it is the total amount deposited over the period (which increases as the period increases).  For example,

Averaging Time	1 hr	3 hrs	24 hrs
Concentration in µg/m3	70	39	15
Deposition in g/m2	.005	.012	.045

For a more technical description of how dry deposition is calculated, please refer to the ISCST3 User’s Guide at: https://www.weblakes.com/ISCVOL2/133.htm

We are currently accepting submissions for the Monthly Modeling Tip which appears in our newsletters.  If you have a modeling tip that may benefit a variety of people, please send it to us at support@weblakes.com.   Your name and the name of your organization will appear below the tip providing you with greater exposure.

US Western States Raise Emissions Standards

Despite an effort by auto industry lobbyists to kill the move, two Pacific Northwest states - Oregon and Washington - are getting ready to adopt California’s new vehicle emission standards to reduce greenhouse gases.
https://www.globe-net.ca/search/display.cfm?NID=1230&CID=8

Nine U.S. States Break with Bush on Greenhouse Gases

Nine northeastern U.S. states are working on a plan to cap and then reduce the level of greenhouse gas emissions from power plants, the first U.S. deal of its kind and one which would see the region breaking with President Bush who refused to sign the Kyoto Protocol.
https://enn.com/today.html?id=8618

Global Warming Causes Soil to Release Carbon, Study Says

Global warming is causing soil to release huge amounts of carbon, making efforts to fight global warming tougher than previously thought, scientists said on Wednesday.
https://www.enn.com/today.html?id=8740

Community Development Carbon Fund Gets Unexpected Boost; Public & Private Partners Invest $128 Million

Less than 18 months since its inception, the World Bank Community Development Carbon Fund (CDCF) today announced that 25 public/private participants closed the first round of financial commitments at $128 million—far beyond the original $100 million projected target.   The beneficiaries will be the poorest countries on the planet, which until now have been by-passed by the emerging carbon emissions trading market.
https://www.cleanairnet.org/cai/1403/article-59894.html

Government Takes Action to Protect the Health Of Ontarians

The Ontario government is protecting the health of Ontarians and improving air quality with tough air pollution limits for industry, Environment Minister Laurel Broten announced today.
https://ogov.newswire.ca/ontario/GONE/2005/08/29/c3822.html
?lmatch=&lang=_e.html

Here are a few Conferences and Tradeshows coming up in the next few months: