Oklahoma Department of Environmental Quality
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2017 2022 OKLAHOMA Carbon Monoxide
Highest 8 Hour Averages (ppm) through December 31, 2022
Site  2017 2018 2019 2020 2021 2022
  1st 2nd 1st 2nd 1st 2nd 1st 2nd 1st 2nd 1st 2nd
Tulsa Central 1.0 1.0 1.1 1.0 0.9 0.8 1.0 0.9 0.9 0.8 1.0 0.8
Site 1127 02-Jan 11-Jan 09-Jan 16-Dec 05-Dec 08-Jan 10-Dec 17-Nov 04-Jan 03-Jan 30-Jan 17-Jan
                         
OKC North 0.8 0.8 0.9 0.8 0.7 0.7 2.1 1.4 1.1 1.1 0.7 0.7
Site 1037 07-Jan 10-Jan 10-Dec 11-Dec 15-Nov 24-Nov 30-Oct 30-Oct 15-Aug 16-Aug 08-Feb 09-Mar
                         
OKC Near Road 1.3 1.3 1.6 1.6 1.1 1.0 1.4 1.4 1.3 1.3 1.5 1.3
Site 0097 11-Jan 10-Dec 04-Jan 29-Nov 09-Jan 05-Jan 11-Jul 17-Jul 23-Feb 31-Oct 29-Jan 24-Jan