Oklahoma Department of Environmental Quality
2018 2023 OKLAHOMA Carbon Monoxide
 8-Hour Daily Maximums through November 20, 2024
Site  2019   2020   2021   2022   2023 2024
  1st 2nd 1st 2nd 1st 2nd 1st 2nd 1st 2nd 1st 2nd
Tulsa Central 0.9 0.8 1.0 0.9 0.9 0.8 1.0 0.8 1.0 1.0 0.8 0.7
Site 1127 5-Dec 8-Jan 10-Dec 17-Nov 4-Jan 3-Jan 30-Jan 17-Jan 2-Jan 19-Jun 30-Jan 3-Jan
                         
OKC North 0.7 0.7 2.1 1.4 1.1 1.1 0.7 0.7 0.9 0.9 1.2 1.2
Site 1037 15-Nov 24-Nov 30-Oct 30-Oct 15-Aug 16-Aug 8-Feb 9-Mar 28-Nov 17-Dec 21-Jan 22-Jan
                         
OKC Near Road 1.1 1.0 1.4 1.4 1.3 1.3 1.5 1.3 1.2 1.2 1.4 1.4
Site 0097 9-Jan 5-Jan 11-Jul 17-Jul 23-Feb 31-Oct 29-Jan 24-Jan 6-Jan 17-Dec 4-Jan 11-Jan
                         
 
All data is subject to change upon QA/QC by DEQ and EPA.