Our Air Monitoring Network Plan is now available for public review and comment through June 17, 2024. It contains proposed changes to the Oklahoma Air Monitoring Network for 2024. View Plan and Learn More
With funding from the Volkswagen Environmental Mitigation Trust Agreement, DEQ has developed several new programs to promote healthier air quality across the state. An updated version of Oklahoma’s VW Settlement Beneficiary Mitigation Plan (BMP) is open for public comment through June 15, 2024. The updated BMP and instructions for commenting can be found at the following page: Volkswagen Settlement
AQD announces issuance of a new version of the Hot Mix Asphalt Facilities (HMAF) General Permit and Forms on April 1, 2024. For details, please see the General Permits and PBR Page 
DEQ has submitted the Priority Action Plan for Oklahoma's Climate Pollution Reduction Grant (CPRGOK). More info on the CPRGOK page
OAC 252:100-49, Oklahoma Emission Reduction Technology Rebate Program, is effective as of September 15, 2023. New DEQ Form #100-240 is available for applying for a rebate claim for Emission Reduction Projects that qualify under the rule from Oklahoma's Oil & Gas industry (requires a $1,000 non-refundable review and processing fee). Note: There are currently no funds in the Oklahoma Emission Reduction Technology Incentive Revolving Fund from which to pay approved rebate claims. See Rules & Planning page for more details
New Compliance and Enforcement Guidance on AQD’s Interpretation of “Annual” for NSPS/NESHAPsIn order to clear up a recent misunderstanding of AQD’s interpretation of “annual” for the purposes of New Source Performance Standards (NSPS) and
National Emissions Standards for Hazardous Air Pollutants (NESHAPs) reporting, testing, and maintenance, AQD has developed new guidance. This is the interpretation AQD will use unless a Subpart specifies a different timeframe. View the Guidance
DEQ is announcing the deployment of the Lead-Based Paint (LBP) electronic form submittal system for LBP and RRP contractors. For more information, visit the Air Forms page

What is Air Quality?

The amount of pollution in the air from all sources – natural and human – defines the quality of the air we breathe. Air pollution isn’t limited to our cities; it can blow into any part of Oklahoma from neighboring states.

Bad air quality can affect everybody’s health. It can have direct effects on the lungs, and it can worsen an existing condition, such as asthma. Some people are more sensitive to air pollution than others. These include young children who are growing rapidly and older adults who have reduced immune systems.

Poor public health also incurs economic costs for society, e.g., increased healthcare costs and loss of working days. A clean environment makes Oklahoma an attractive place to live, work and play: something we can all be proud of.

What does the Air Quality Division do?

The Air Quality Division operates various programs to carry out DEQ’s regulatory duties under state and federal law.

Air Monitoring

Measures the ambient (outdoor) air quality across Oklahoma

Air quality forecasts, alerts, and health advisories

Air Toxics

Air Permits

Issues permits to companies with facilities that produce air pollutant emissions

Emissions Inventory

Collects data about emissions released into the air from all Oklahoma sources

Compliance & Enforcement

Inspects air pollution sources based on permits and potential violations


Lead-Based Paint

Certification and accreditation program

Rules & Planning

Reviews and proposes rule changes to the Air Quality Advisory Council

Researches and develops regulatory strategies