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Welcome to the
Air Quality Division

New Ozone Standard

EPA has strengthened the primary and secondary National Ambient Air Quality Standards for ground-level ozone to 70 parts per billion to protect public health and the environment.

More on the new standards
October Air Quality Advisory Council

The October Air Quality Advisory Council Meeting will be held at DEQ Headquarters on Wednesday, October 14th at 9 a.m. The proposed rules and meeting notices have been posted.

Review the agenda and other meeting materials

EPA has published proposed changes to rules related to source testing of air emissions including revisions to NSPS Subpart JJJJ for stationary spark ignition internal combustion engines. Comments must be received by November 9, 2015. New information added on October 2, 2015

Local Impact of the Proposed Rule Changes
OKC Near-Road Monitor

Our initial 3 months of data indicate significantly higher concentrations of both NO2 and CO at our near-road monitor in OKC compared to other sites. Levels are, however, well-below the federal standard.

Follow our near road monitor here
Don't Miss The Bus

EPA is now accepting applications for rebates on school bus replacements and retrofits as part of the federal Clean Diesel Program. Applications will be accepted until Friday, October 30th, 2015 at 4 pm Eastern Time.

Clean Diesel information and applications

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.

Why is it important?
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.  And 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?
Most importantly, we work to effectively protect the public health in Oklahoma.  We do this by:

More information about the Air Quality Division

To reach the main AQD programs use the links on the right or the pulldown menu at the top left on any AQD page.

Last Updated: October 1, 2015


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