Click here to to go the DEQ home page Click here to go to our list of rules Click here to see our publications, fact sheets, forms and news releases Click here to see our programs
Air Quality Update
December, 2006, Vol 9, No 4
Header Banner

Ozone Season 2006 Recap

Unfriendly weather patterns made the summer of 2006 one of the more interesting ozone seasons in recent years. The eight-hour standard was exceeded at 12 of the 16 ozone monitoring sites and the fourth-high reading was in excess of the standard at four sites.

Although there were more than the usual number of days that exceeded the eight-hour standard, the number that matters is the fourth-high average. At six of 14 sites that number increased from the previous three-year average. At six sites, it remained the same, and at the other two sites it actually decreased. The largest increase was .002 ppm at site 1037 in north Oklahoma City. The largest decrease was .003 ppm at site 174 in south Tulsa.

The western part of the state experienced the highest values in June and July. The Red River sites trended higher in June and July as well, with one high reading in September at site 670 in Terral. The Oklahoma City sites had high values throughout the season with the highest concentrations occurring in June and July. Tulsa values were highest in July and August. The earliest date on the chart was May 18th and the latest date was September 30th.

The highest eight-hour average reading occurred July 20th at site 178 in east Tulsa where an averaged value of 0.112 ppm was monitored. That day also had the highest readings of the season at sites 1127 and 137 in Tulsa. The highest reading of the season in the Oklahoma City area was 0.095 ppm on June 8th at site 101 in Yukon. Of the four sites that did not exceed the eight-hour standard, two were in south Oklahoma City and the others were Seiling and McAlester.

Only two sites exceeded the old one-hour standard. Sites 178 and 1127 in Tulsa had high readings on June 20th. The lowest one-hour high reading was 0.088 at McAlester.

Although there were more high readings than normal, the eight-hour ozone standard is still being met throughout the State of Oklahoma. It will take another extraordinary year or two to push the three-year average over the threshold of non-attainment.

2006 Oklahoma Ozone
Highest 8 Hour Averages through 10/01/06
Site  1st 2nd 3rd 4th  03-05 Avg* 04-06 Avg*
03 4th  04 4th 05 4th (date) (date)  (date)  (date) 4th Highs 4th Highs
Terral  (670) 0.097 0.089 0.088 0.086    
 (new site) 0.080 9-Jun 15-Jun 19-Jul 14-Sep  
Burneyville  (300) 0.098 0.097 0.091 0.089    
 (new site)   0.085 15-Jun 30-Jun 29-Jun 19-Jul    
Tulsa West (144) 0.085 0.085 0.085 0.085 0.076 0.077
0.081 0.071 0.076 8-Jun 19-Aug 23-Aug 15-Sep  
Tulsa East (178) 0.112 0.099 0.091 0.084 0.079 0.079
0.084 0.073 0.081 20-Jul 19-Aug 4-Aug 19-Jul    
Tulsa  Central (1127) 0.106 0.086 0.082 0.081 0.076 0.077
0.080 0.068 0.082 20-Jul 18-Jul 30-Jun 29-Jun  
Tulsa North   (137) 0.095 0.094 0.087 0.084 0.079 0.079
0.083 0.071 0.083 20-Jul 18-Jul 30-Jun 29-Jun    
Tulsa South   (174) 0.107 0.093 0.087 0.078 0.076 0.073
0.086 0.071 0.072 19-Aug 4-Aug 30-Sep 8-Jun  
OKC (North)   (037) 0.091 0.090 0.088 0.088 0.079 0.081
0.082 0.077 0.078 19-Aug 19-Jul 18-May 20-Jul    
OKC   (Central)  (033)  0.087 0.085 0.084 0.080 0.077 0.077
0.080 0.076 0.077 8-Jun 19-Aug 15-Jun 29-Jun  
OKC (Moore) (049) 0.084 0.082 0.081 0.080 0.074 0.075
0.076 0.070 0.076 15-Jun 19-Aug 18-Jun 6-Jun    
OKC (Goldsby)  (073) 0.084 0.077 0.076 0.075 0.072 0.072
0.077 0.068 0.073 15-Jun 21-Jul 18-Jun 1-Jul  
OKC (Choctaw) (096) 0.087 0.085 0.084 0.083 0.076 0.076
0.078 0.072 0.075 19-Aug 8-Jul 15-Jun 19-Jul    
OKC (Yukon)   (101) 0.095 0.090 0.081 0.079 0.076 0.076
0.078 0.071 0.079 8-Jun 15-Jun 19-Jun 18-Jul  
Lawton   (647) 0.088 0.088 0.083 0.080 0.077 0.078
0.078 0.075 0.079 9-Jun 15-Jun 18-Jun 19-Jun    
McAlester   (415) 0.083 0.078 0.077 0.077 0.071 0.072
0.076 0.068 0.071 19-Jul 18-Aug 19-May 10-Jun  
Seiling   (860) 0.082 0.081 0.081 0.075 0.073 0.072
0.077 0.067 0.076 9-Jun 15-Jun 19-Jun 19-Jul    
*0.085 or greater indicates exceedance of National Ambient Air Quality Standards

Reporting 2006 Emissions Inventories

The Oklahoma Clean Air Act requires any permitted facility that emits regulated air pollutants to submit a complete annual emissions inventory to the Air Quality Division of the Oklahoma Department of Environmental Quality. Emissions of all pollutants which are regulated by a State or Federal rule or permit condition must be reported. The 2006 inventory covers operations during the 2006 calendar year and must be submitted prior to April 1, 2007.

Emissions data is used for:
• Emissions trend analysis
• Rule evaluation and development
• Development of new control strategies
• Meeting statutory reporting requirements
• Calculation of Annual Operating Fees

Submission Due Date Changed
At its October 2006 meeting, the Air Quality Advisory Council approved a change to the annual emissions inventory submission deadline from March 1 to April 1. Extensions beyond this deadline may be granted ONLY at the discretion of the Air Quality Division Director. Requests must be submitted in writing and show good cause for why the extension is necessary.

Redbud is Oklahoma’s web-based application that allows secure, accurate electronic reporting of emissions inventory data. Access to company data is provided ONLY through a secure username and password. The private username and password is e-mailed to each company’s “Responsible Official” the first week in January each year.
Most companies with permitted facilities in Oklahoma choose to use Redbud as a reporting tool. However, use of Redbud remains voluntary and companies may still choose to submit inventory data using the traditional hardcopy “Turn-Around Document.”
First time users of Redbud or those experiencing problems with using Redbud should contact the Air Quality Division at 405-702-4100. The Emissions Inventory staff is available to provide assistance.

Data Quality Continues to Improve!
As well as easing the reporting burden on industry, Redbud has allowed the Emissions Inventory Section more time to verify data quality and to follow up with industry after submission to identify and correct problems. Technical and quality reviews of the data include replicating calculations by using the submitted annual throughputs and other data. The Air Quality Advisory Council has approved a change to the rules so that an explanation of a 30-percent change in emissions is not automatically required. However, enhanced Quality Control checks now look in detail for any inconsistencies and data discrepancies. Written documentation justifying the data submitted may be requested.

Every January the Emissions Inventory Section hosts workshops in Tulsa and Oklahoma City to brief company personnel on how to submit an emissions inventory using Redbud or by the traditional “Turn Around Document.” Workshop participants can hear the latest reporting developments and data requirements. The workshops allow any questions or concerns to be addressed early in the reporting cycle. It also allows our customers to meet the staff and “put a face with the name.”

New This Year - Optional Training Sessions
In response to feedback from last year’s workshops, optional basic training in how to complete an emissions inventory will be provided. This will take place in the morning before each workshop and include hands-on use of Redbud. Personnel completing an inventory for the first time are strongly encouraged to attend. Also, repeat users may want to attend to review the DEQ approach to reporting inventory data.

Workshop Dates, Times, Locations
Please note that the workshops will be at different locations this year.

Oklahoma City - January 11, 2007
MetroTech Spring Lake Campus, 1700 Springlake Drive


Tulsa - January 18, 2007
OSU-Tulsa Campus, 700 N. Greenwood

9 AM - Noon

Optional Training


9 AM - Noon

Optional Training

1 PM - 4 PM

Main Workshop


1 PM - 4 PM

Main Workshop

For more details and directions, visit the Emissions Inventory web page:
To register please contact:, (405) 702-4170.


Currently, EPA lists six sections under review, but only one is still open for comments. All of Chapter 15, Ordnance Detonation is under review, with comments due Dec. 1, 2006. Comments on Section 7.1-Organic Liquids Storage Tanks were due by July 31, 2006. The other four sections deal with fugitive dust: Sections 13.2.1-Paved Roads, 13.2.2-Unpaved Roads, 13.2.4-Aggregate Handling and Storage Piles, and 13.2.5-Industrial Wind Erosion. Comments on all four were due by June 16, 2006.

Find more AP-42 information on EPA’s TTN-CHIEF Bulletin Board at


The Air Quality Advisory Council meeting was held October 18 at Beavers Bend State Park in Broken Bow. The Council voted to forward to the Environmental Quality Board (EQB) for consideration at its November 14 meeting the following rules:
• Amendments to Subchapter 5 to clarify the requirement to provide documentation for emission changes of 30% or more on emission inventory documents, and to change from March 1 to April 1 of each year the due date for required submittal of the annual emission inventory.
• New Subchapters 2 and 40, a new Appendix Q, and revocation of Subchapters 4 and 41. This proposal would assure that all incorporations by reference of EPA regulations have effective dates in the agency rules.
Air Quality rules passed at the July 19 Council that were also considered at the November 14 EQB meeting in Tulsa include:
• A new Part 11 for Subchapter 17, Other Solid Waste Incinerators (OSWI) to establish state emission standards and other enforceable requirements for existing OSWI.
• A new Appendix P, Regulated Air Pollutants, and proposed amendments to Subchapters 5, 7, 9 and 23 to add a new definition for “regulated air pollutant”.

All four Air Quality rules were considered and adopted by the board on November 14.

Members of the Council voted to continue the following rules to the January 2007 Air Quality Council meeting:
• Amendments to Subchapters 1, 8, 37 and 39 to clarify certain definitions including "particulate matter" and "volatile organic compounds".
• New Subchapter 44, Control of Mercury Emissions from Coal-Fired Electric Steam Generating Units, which would incorporate by reference the federal Clean Air Mercury Rule (CAMR) issued in May 2005.

The Council also held a public hearing on proposed allocations of mercury emissions credits for coal-fired power plants. The intent of the hearing was to receive comments from the public on the proposed revisions to the State Implementation Plan (SIP).

The next Air Quality Advisory Council meeting is scheduled to be held on January 17, 2007 in Oklahoma City.

Lead-Based Paint Program Undergoes Changes

Oklahoma’s Lead-Based Paint (LBP) Management Program now has only a single accredited training provider-Metro Technology Centers (MetroTech), 1700 Springlake Drive, Oklahoma City. The University of Oklahoma Institute for Environmental Management has discontinued its LBP training program. The dates for upcoming initial and refresher training offered by MetroTech will be posted on the Air Quality Division website at

The Quarterly Report form was revised in January 2006, but reports are still being submitted on the old form. The revised form requires a complete address be provided for each location where LBP services were performed and bears a revision date of January 5, 2006 in the lower right-hand corner of the form. Reports filed on the old form will not be accepted. The form is available at or by contacting Richard Hooper.

DEQ Contacts 405-702-4100:
Cheryl Bradley-Program Manager
Lindsey Hill-Accreditation
Richard Hooper-Certification
Kevin Tallant-Abatement

State to Respond to New Monitoring Regulations

The Unites States Environmental Protection Agency has issued new regulations to allow state agencies to update to better and more efficient technologies in pollution monitoring. The new rules will allow site and monitor reductions in areas well below the standard and allow agencies to re-direct resources to new technologies and monitoring sites that should better protect public health. These new technologies will include continuous, real-time monitoring of particulate matter and new trace-level instruments that will assist in creating a more effective monitoring network.

The regulations will also create a new network of national (NCORE) sites that will contain the following minimum parameters: PM2.5, PM10-2.5, speciated PM10-2.5, O3, SO, CO, NO/NOy, wind speed, wind direction, relative humidity, and ambient temperature. There will be at least one NCORE site per state required but, states are free to design the remainder of their monitoring networks in a way that best suits their individual needs and situation. In the coming months, the DEQ Air Monitoring Section will be working to assess network changes that will benefit the citizens of Oklahoma.

As a part of the same package of regulations and in an effort to further protect public health, the 24-hour PM2.5 National Ambient Air Quality Standard (NAAQS) was reduced from 65μg/m3 to 35μg/m3, effective December 18, 2006. The change reflects the increasing awareness of the short and long-term effects of particle pollution.

PM 2.5 Monitoring site located on the campus of Oklahoma Christian University of Science and Arts.

The annual standard for PM2.5 will remain 15μg/m3 and the annual standard for PM10 will be removed as statistical evidence has shown minimal health effects to long-term exposure of airborne particulate matter in this size range. A more complete background of these revisions can be found at


Current News or Events

Environmental Education

Public Information

Contact List

About AQD

Air Quality Education

Fact Sheets

Search DEQ

DEQ Calendar of Events

DEQ Env. Education


DEQ Address

News Releases

Environmental License Tag

DEQ Forms

Permits for public review


Lawton | INCOG | ACOG | CenSARA | CENRAP | EPA Home | State of Oklahoma