News & Events
US EPA Releases Beta Version of AERSCREEN
The US EPA released a beta version of the AERSCREEN model on August 17, which can be downloaded from the SCRAM website. AERSCREEN is a screening tool, based on the AERMOD model, which is designed to estimate worst-case 1-hour concentrations for a single source. Conversion factors also allow AERSCREEN to estimate 3-hour, 8-hour, 24-hour, and annual concentrations. AERSCREEN utilizes a tool called MAKEMET to generate a matrix of worst-case meteorological conditions, eliminating the need for user-provided met files.
The comment period for this beta release will end on September 17, 2010, and a final release is expected by the end of the year. Lakes Environmental is currently developing an interface for the AERSCREEN tool. Further announcements will be coming soon.
US EPA Clarification Memo on 1-Hour S02 NAAQS
On August 23, the US EPA released a clarification memo on the SCRAM website regarding "Applicability of Appendix W Modeling Guidance for the 1-hour SO2 NAAQS" has been released in conjunction with "Guidance Concerning the Implementation of the 1-hour SO2 NAAQS for the Prevention of Significant Deterioration Program".
Lakes Environmental Releases AERMOD View™ Version 6.7.1
Lakes Environmental is pleased to announce the release of AERMOD View Version 6.7.1., the latest release of its air dispersion modeling software. With this latest version of AERMOD View come new features including:
- Graphical Copy and Paste - Sources can be copied and pasted from the graphical display
- Warnings at Run Time – AERMOD View gives warnings at run time as well as errors
- Source Inputs Dialog - The source inputs dialog has been updated to make the use of differentunits even easier
For a comprehensive list of the updates and new features available in AERMOD View version 6.7.1, please see our latest release notes.
If you are currently in maintenance for AERMOD View and did not receive an email regarding this update, please contact us at support@weblakes.com.
If you are a user of AERMOD View but are no longer in maintenance please contact sales@weblakes.com to find out how you too can begin using version 6.7.1!
Lakes Environmental Releases AERMOD View™ Version 6.6
Lakes Environmental is proud to announce the immediate release of AERMOD View Version 6.6., the latest release of its most popular air dispersion modeling software. With the latest version of AERMOD View come new features including:
- Support for SO2 National Ambient Air Quality Standards (NAAQS) - calculating the 3-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations
- Support for PM2.5 NAAQS – calculating the highest average of the maximum 24-hour averages across 5 years of data
- Automatic BPIP Runs - automatically run BPIP when AERMOD is run
For a complete list of the updates and new features available in AERMOD View version 6.6, please see our latest release notes.
If you are currently in maintenance for AERMOD View and did not receive an email regarding this update, please contact us at support@weblakes.com.
If you are a user of AERMOD View but are no longer in maintenance please contact sales@weblakes.com to find out how you can get up and running on this latest release!
US EPA Memorandum on NO2 NAAQS
On June 28, 2010, the US EPA Air Quality Modeling Group released a memorandum which clarifies the applicability of current guidance in the Guideline on Air Quality Modeling for modeling NO2 impacts in accordance with the Prevention of Significant Deterioration (PSD) permit requirements to demonstrate compliance with the new 1-hour NO2 standard.
This memorandum can be reviewed on the US EPA’s SCRAM website.