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DNR News Releases

Archive by tag: dispersion modelingReturn

Revised Air Dispersion Modeling Guidance Available

• 9/15/2023 9:51:00 AM
• View Count 3055

The DNR has finalized updates to guidance documents used for air dispersion modeling analyses.

Updated Air Dispersion Modeling Guidance and Form MD Available

• 8/25/2021 4:01:00 PM
• View Count 1469

For those projects that may require modeling, DNR updated three guidance documents and Form MD. The updates remove references to the 24-hour and annual SO2 National Ambient Air Quality Standards (NAAQS), which have been revoked.

Updated Meteorological Data Available for Use in Air Dispersion Modeling

• 8/13/2021 1:47:00 PM
• View Count 1179

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.

Plan to participate in the Air Quality Client Contact meeting on November 19

• 11/9/2020 1:29:00 PM
• View Count 1278

Stay up-to-date on current events and upcoming changes in DNR’s air quality program. Plan to attend an open forum with DNR staff at the Air Quality Client Contact Meeting at 1 p.m. on Thursday, November 19. The meeting can be accessed virtually and by teleconference.

Update to Meteorological Data Used for Dispersion Modeling

• 5/3/2018 10:49:00 AM
• View Count 2863

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

Update to Meteorological Data Used for Dispersion Modeling

• 1/3/2017 3:09:00 PM
• View Count 3520

On December 20, 2016, the EPA finalized updates to the Guideline on Air Quality Models (Appendix W) as well as updated versions (v16216) of AERMOD, AERSCREEN and AERMET.

Dispersion Modeling Data and Guidance Updates Available for Use

• 12/4/2015 9:28:00 AM
• View Count 4008

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.

Opportunity for Comment on Proposed Dispersion Modeling Data and Guidance Updates

• 11/19/2015 3:40:00 AM
• View Count 4143

The DNR is proposing updates to the pre-processed meteorological data for AERMOD, new default background concentrations, updated guidance, and a new air resource availability summary.

Agenda for November 19 Air Quality Client Contact Meeting

• 11/12/2015 8:07:00 AM
• View Count 3904

An Air Quality Client Contact Meeting will be held Thursday, November 19, from 1:00 p.m. to 2:30 p.m. in the DNR Air Quality Bureau conference rooms.