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Archive by tag: dispersion modelingReturn
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Updated Air Dispersion Modeling Guidance and Form MD Available

Updated Air Dispersion Modeling Guidance and Form MD Available

  • 8/25/2021 4:01:00 PM
  • View Count 1380
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The updates remove references to the 24-hour and annual SO2 National Ambient Air Quality Standards (NAAQS), which have been revoked.
Plan to participate in the Air Quality Client Contact meeting on November 19

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

  • 11/9/2020 1:29:00 PM
  • View Count 1221
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.
Dispersion Modeling Data and Guidance Updates Available for Use

Dispersion Modeling Data and Guidance Updates Available for Use

  • 12/4/2015 9:28:00 AM
  • View Count 3900
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.