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Iowa Natural Resources Dept.: Revisions to Guideline on Air Quality Models (Appendix W) and AERMOD
December 13, 2024
DES MOINES, Iowa, Dec. 13 -- The Iowa Department of Natural Resources issued the following news release:

On November 20, the United States Environmental Protection Agency (EPA) released updates to Appendix W and the AERMOD modeling system (version 24142). The final rule, published in the Federal Register on November 29, 2024, has an effective date of January 28, 2025. A summary of the changes and links to download the new version of AERMOD are available on EPA's Support Center for R . . .

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