AERMOD Modeling for Permits Training will be provided on February 23^rd and 24^th, 2010 in Houston, Texas. For details, click here.

On February 26, 2010 at 3pm CST we will be presenting a FREE on-line demo titled "Model Output using BEEST." Learn how to export output to Excel tables, plot concentrations, create contours, add aerial photos or AutoCad plot plans, display an area of impact, and much more. The demo will last approximately 30 minutes. RSVP to demos@oris-solutions.com if you would like to attend.

Version 9.81 of our BEEST air dispersion modeling software is now available to all registered users with current maintenance. This release includes the following enhancements:

• Added support for AERMOD version 09292 (released October 23, 2009).
• Registration is now required only upon initial installation of BEEST.
• Added tutorials to BEEST under the Help → Tutorials menu.
• Added the ability to view individual days of AERMOD met data.
• Added more options for adjusting the size of receptor points and line widths for modeled objects for both viewing and printing.
• The Default, Raincap, and Horizontal Releases selection for point sources is not available when the Regulatory Default option is selected in the Control Options section.
• Fixed a bug related to gas deposition keywords not always being written to the AERMOD input file.
• Fixed a bug related to incorrect assignment of hill heights for manually-generated Cartesian receptor grids.

Version 2.90.1 of our Professional CalPuff air dispersion modeling software is now available to all registered users with current maintenance. This release includes the following enhancements:

• Support for SMRT1 and SMTR3 terrain data
• Support for external source files
• Support for LADEQ on-site met data
• Includes new defaults from EPA/FLM CALMET clarification memo published in August 2009