Nitrogen dioxide designations - State recommendations and EPA response for Iowa.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Iowa State Recommendation (PDF)(1 pg, 139 K, January 25, 2011)
- EPA Response to Iowa Recommendation (PDF)(2 pp, 99 K, June 28, 2011)
- Iowa Round 2 Recommendation (PDF)(1 pg, 74 K, September 7, 2011)