EPA removed the requirement to install near-road nitrogen dioxide (NO2) monitoring stations in Core Based Statistical Areas (CBSAs) having populations between 500,000 and 1 million. Under the original monitoring requirements, these monitors were due to be installed and operational by January 1, 2017.
This page includes fact sheets related to the proposed and final action.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- Proposed NO2 Monitoring Revisions Fact Sheet (PDF)(3 pp, 51 K)
- Final NO2 Monitoring Revisions Fact Sheet (PDF)(2 pp, 42 K, 12/22/2016)