Ambient Air Monitoring

The Combined 5-Year Network Assessment and 2025 Annual Monitoring Network Plan is available for public review and comment through June 16, 2025. It contains planned Oklahoma DEQ ambient monitoring network changes for the upcoming year as well as an evaluation of overall network effectiveness and ability to meet the requirements in Appendix D to Part 58, Title 40 of the Code of Federal Regulations. Comments should be submitted to the attention of Ryan Biggerstaff and Bryan Sims, Environmental Programs Managers, Air Quality Division, PO Box 1677, Oklahoma City, OK 73101 or email Ryan Biggerstaff and Bryan Sims.

The Air Monitoring Section operates a statewide network of ambient (outdoor) air pollution monitors. These monitors serve three primary functions:

  1. To determine compliance with the Clean Air Act’s pollution standards
  2. To inform the public on the state of Oklahoma’s air quality
  3. To monitor areas of special or immediate concern

Monitoring Site 1037

National Ambient Air Quality Standards (NAAQS)

NAAQS Table and Current Highs – lists each standard and highest monitored values for the current year

These standards define the maximum permissible concentrations for common air pollutants, or criteria pollutants. Click on the name to read the factsheet.

Air Data Report – annual summary of air quality monitoring data in comparison to the NAAQS

Informing the Public

Our primary methods of informing the public are:

AQI (Air Quality Index), Ozone & PM Alerts, Health Advisories

Current Air Quality & AQI Forecasts – includes map and table of current monitoring sites

The Air Monitoring Network Plan, which details DEQ’s planned changes to the ambient monitoring network, is available annually in June for public review. View the final 2024 Network Plan

Special Studies

Air Toxics including Mercury (Hg)

Hydrogen Sulfide (H2S) – a toxic gas which is monitored at two locations

Smoke Management