Lakes Environmental e-Newsletter

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Upcoming Courses

Date	Course	Location	Registration
Apr 3-4, 2017	AERMOD	London, UK	Register Now
May 1-2, 2017 May 3-5, 2017	AERMOD CALPUFF	Las Vegas, NV	Register Now
May 22-23, 2017	AERMOD	Auckland, New Zealand Sponsored by CASANZ	Register Now
Jun 4, 2017 Jun 5, 2017	AIR-299 AERMOD AIR-262 PUFF	Pittsburgh, PA Sponsored by A&WMA	Register Now
Jul 24-25, 2017 Jul 26-27, 2017	AERMOD CALPUFF	Mexico City	Registration Coming Soon

For more information on the above courses, including registration information, location, and course outlines, please visit our web site: https://www.weblakes.com/courses.html.

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Modeling Tip

Time Series Output from AERMOD

The AERMOD model supports many different forms of output to support the needs of modelers. The most common form of output is that of high values – concentrations not paired in time across the domain but ranked in order from highest to lowest for each individual receptor. There are situations which may require the modeler to analyze output from one or more individual hours or averaging periods. For these tasks, AERMOD can prepare an output file called the Post-Processing File (model keyword POSTFILE).

Post-Processing File Options in AERMOD View

Each POSTFILE requires a few input elements:

Averaging Period: Select the time step you wish to analyze. Output for each receptor at each time step will be written to the file. In the screenshot above, output at every 3-hour interval would be published. Source Group ID: Identify the source group of interest. You can create one POSTFILE for each Averaging Period + Source Group ID combination. Format: Choose from binary (UNFORM) or ASCII text (PLOT). Use the latter if you want to analyze the output using third-party software (e.g., large text file editors) as the binary option will not be readable. File Name: Assign a unique file name.

A useful feature of AERMOD View which utilizes the POSTFILE output, is the ability to create hourly Plume Animations. As described in one of our previous Modeling Tips, the Plume Animation option creates a 1-hour average POSTFILE for each selected source group resulting in contour plots for each individual hour. These plots can then be animated and recorded.

Plume Animation File Options in AERMOD View

One important thing to keep in mind about POSTFILEs is that they can be prohibitively large in size. Make sure you have adequate disk space before starting your model run to avoid run failures.

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 support@webLakes.com. 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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Articles

Chinese Premier Promises Faster Progress to Cut Air Pollution

March 5, 2017 - Chinese Premier Li Keqiang pledged Sunday to make the country's smoggy skies blue again and "work faster" to address pollution caused by the burning of coal for heat and electricity.

His words to delegates at the opening of the annual National People's Congress highlight how public discontent has made reducing smog, the most visible of China's environment problems, a priority for the leadership. The 10-day event got underway under a sunny blue sky, thanks to heavy gusts from the north that cleared away the unhealthy gray from the day before.

Read Full Article Here

The Cost of a Polluted Environment: 1.7 Million Child Deaths a Year, says WHO

March 5, 2017 - More than 1 in 4 deaths of children under 5 years of age are attributable to unhealthy environments. Every year, environmental risks – such as indoor and outdoor air pollution, second-hand smoke, unsafe water, lack of sanitation, and inadequate hygiene – take the lives of 1.7 million children under 5 years, say two new WHO reports.

The first report, Inheriting a Sustainable World: Atlas on Children’s Health and the Environment reveals that a large portion of the most common causes of death among children aged 1 month to 5 years – diarrhea, malaria and pneumonia – are preventable by interventions known to reduce environmental risks, such as access to safe water and clean cooking fuels.

Read Full Article Here

Steep Cuts to EPA, End of Reporting of Methane Emissions Proposed in D.C.

March 2, 2017 - The Environmental Protection Agency said Thursday it is withdrawing an Obama-era request that oil and natural gas companies provide information on methane emissions at oil and gas operations.

EPA Administrator Scott Pruitt said the withdrawal is effective immediately, adding that he wants to assess the need for the information the agency has been collecting under a directive issued in November.

Read Full Article Here

Stuttgart Residents Sue Mayor for 'Bodily Harm' Caused by Air Pollution

March 2, 2017 - On a frosty Friday evening at the end of January, after her usual walk around her central Stuttgart neighbourhood, Susanne Jallow felt an unusual cough and irritation in her throat.

Jallow, 54, lives in Neckartor, an area chock-a-block with residential buildings hugged by a busy road, B14, which handles around 100,000 vehicles a day.

Neckartor is a hotspot for air pollution, not just in Stuttgart but in the whole of Germany. PM10 values (coarse dust particles between 10 and 2.5 micrometres in diameter) recorded on sensors installed in the busy intersection of B14 often hit around 200 micrograms per cubic metre (µg/m³). EU standards set the top limit of safe PM10 levels at 50µg/m³.

Read Full Article Here

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Upcoming Conferences & Trade Shows

Mar 21-23, 2017	Americana 2017 More Info	Montréal, QC, Canada
Apr 2-4, 2017	2nd International Conference on Air, Water, and Soil Pollution and Treatment (AWSPT'17) More Info	Barcelona, Spain
Apr 9-14, 2017	41st Stationary Source Sampling & Analysis for Air Pollutants Conference More Info	Tucson, AZ, USA
May 1-3, 2017	CANECT 2017 More Info	Mississauga, ON, Canada
May 4-5, 2017	ICECC 2017: 19th International Conference on Environment and Climate Change More Info	Rome, Italy
May 11-12, 2017	2017 Ontario Climate Symposium More Info	Toronto, ON, Canada
May 24-25, 2017	The Air Quality and Emissions Show More Info	Telford, UK
May 25-26, 2017	19th International Conference on Air Pollution and Control More Info	London, UK
Jun 5-8, 2017	110th Air & Waste Management Association's Annual Conference & Exhibition (ACE) More Info Lakes Environmental will be at booth #607	Pittsburgh, PA, USA
Jun 5-8, 2017	Asia Clean Energy Forum 2017 More Info	Manila, Philippines
Aug 14-18, 2017	2017 International Emissions Inventory Conference More Info	Baltimore, MD, 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: www.webLakes.com.  You may also contact us by phone at (519) 746-5995.

All comments and suggestions are welcome.  You can e-mail us at: support@webLakes.com.

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