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DNR News Releases

Archive by tag: AERMODReturn

Revisions to Guideline on Air Quality Models (Appendix W) and AERMOD

• 12/12/2024 10:54:00 AM
• View Count 1561

On November 20, the United States Environmental Protection Agency (EPA) released updates to Appendix W and the AERMOD modeling system (version 24142).

Updated Meteorological and Elevation Data Available for Use in Air Dispersion Modeling

• 5/8/2023 3:49:00 PM
• View Count 2264

When the EPA released updates to the AERMOD modeling system on June 27, 2022, they included updates to AERMET, the preprocessor used to generate meteorological data for use in AERMOD.

Updated Meteorological Data Available for Use in Air Dispersion Modeling

• 8/13/2021 1:47:00 PM
• View Count 1399

When the EPA released updates to the AERMOD modeling system on May 11, 2021, they included updates to AERMET, the preprocessor used to generate meteorological data for use in AERMOD.

Update to Meteorological Data Used for Dispersion Modeling

• 5/3/2018 10:49:00 AM
• View Count 3153

On April 24, 2018, the EPA finalized updated versions (v18081) of the air dispersion modeling software AERMOD, AERMAP and AERMET.

Dispersion Modeling Data and Guidance Updates Available for Use

• 12/4/2015 9:28:00 AM
• View Count 4206

The DNR has updated the pre-processed meteorological data for AERMOD, the default background concentrations, and various guidance documents. Projects with approved protocols that include approval to use the old data, and modeling analyses submitted prior to December 4, 2015, will not have to use the new data. Applicants submitting new projects on or after December 4 should begin using the updated data and guidance immediately. The updates are summarized below.