Oklahoma SIP: OAC 252:100-3-1 to OAC 252:100-3-4: Air Quality Standards and Increments
Regulatory Text:
Oklahoma Administrative Code. Title 252. Department of Environmental Quality
Chapter 100. Air Pollution Control (OAC 252:100)
SUBCHAPTER 3. AIR QUALITY STANDARDS AND INCREMENTS
As approved by EPA December 29, 2008 (73 FR 79400) effective February 27, 2009 (OKd06).
Sections:
252:100-3-1. Purpose, OKc48
252:100-3-2. Primary standards, OKc48
252:100-3-3. Secondary standards, OKc48
252:100-3-4. Significant deterioration increments, OKd06
252:100-3-1. Purpose
As adopted in Oklahoma Register May 16, 1994 (11 Ok Reg 2031) effective May 26, 1994.
Approved by EPA November 3, 1999 (64 FR 59629) effective January 3, 2000 (OKc48).
The purpose of this Subchapter is to enumerate the primary and secondary ambient air quality standards and the significant deterioration increments.
252:100-3-2. Primary standards
As adopted in Oklahoma Register May 16, 1994 (11 Ok Reg 2031) effective May 26, 1994.
Approved by EPA November 3, 1999 (64 FR 59629) effective January 3, 2000 (OKc48).
The table in Appendix E of this chapter enumerates the primary ambient air quality standards.
252:100-3-3. Secondary standards
As adopted in Oklahoma Register May 16, 1994 (11 Ok Reg 2031) effective May 26, 1994.
Approved by EPA November 3, 1999 (64 FR 59629) effective January 3, 2000 (OKc48).
The table in Appendix F of this Chapter enumerates the secondary ambient air quality standards.
252:100-3-4. Significant deterioration increments
As adopted in the Oklahoma Register June 3, 1996 (13 Ok Reg 1917) effective July 1, 1996.
Approved by EPA December 29, 2008 (73 FR 79400) effective February 27, 2009 (OKd06).
(a) Significant deterioration, as used in the phrase Prevention of Significant Deterioration (PSD), means an increase in ambient air pollution above a baseline plus a specific increment allowed for one of three classes of areas. See OAC 252:100-7, Part 5.
NOTE TO READER: “OAC 252:100-7 Part 5" cited above is not in SIP. The Oklahoma SIP-approved PSD regulation is Oklahoma Regulation 1.4.4, “Major Sources – Prevention of Significant Deterioration (PSD) Requirements for Attainment Areas.” END NOTE TO READER
(b) The allowable increments are as follows:
| Pollutant | Maximum allowable increase (micrograms per cubic meter) |
|---|---|
| Class I Areas | - |
| Particulate matter: | - |
| PM-10, annual arithmetic mean | 4 |
| PM-10, twenty-four hour maximum | 8 |
| Sulfur dioxide: | - |
| Annual arithmetic mean | 2 |
| Twenty-four hour maximum | 5 |
| Three-hour maximum | 25 |
| Nitrogen dioxide: | - |
| (effective May 11, 1991) Annual arithmetic mean |
2.5 |
| Class II Areas | - |
| Particulate matter: | - |
| PM-10, annual arithmetic mean | 17 |
| PM-10, twenty-four hour maximum | 30 |
| Sulfur dioxide: | - |
| Annual arithmetic mean | 20 |
| Twenty-four hour maximum | 91 |
| Three-hour maximum | 512 |
| Nitrogen dioxide: | - |
| (effective May 11, 1991) Annual arithmetic mean |
25 |
| Class III Areas | - |
| Particulate matter: | - |
| PM-10, annual arithmetic mean | 34 |
| PM-10, twenty-four hour maximum | 60 |
| Sulfur dioxide: | - |
| Annual arithmetic mean | 40 |
| Twenty-four hour maximum | 182 |
| Three-hour maximum | 700 |
| Nitrogen dioxide: | - |
| (effective May 11, 1991) Annual arithmetic mean |
50 |