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Oklahoma SIP: OK 252:100-3 Air Quality Standards and Increments

Regulatory Text:
SUBCHAPTER 3.  AIR QUALITY STANDARDS AND INCREMENTS

(As approved by EPA 11/03/1999 (64 FR 59629) at 52.1920(c)(48) effective 01/03/2000.)

Outline
252:100-3-1.  Purpose
252:100-3-2.  Primary standards
252:100-3-3.  Secondary standards
252:100-3-4.  Significant deterioration increments

252:100-3-1.  Purpose

     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

     The table in Appendix E of this chapter enumerates the primary ambient air quality standards.

252:100-3-3.  Secondary standards

     The table in Appendix F of this Chapter enumerates the secondary ambient air quality standards.

252:100-3-4.  Significant deterioration increments

     (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.
     (b)  The allowable increments are as follows:
 

Pollutant Maximum allowable increase
(micrograms per cubic meter)
Class I Areas -
  Particulate matter: -
    Annual geometric mean               5
    Twenty-four hour maximum              10
  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: -
    Annual geometric mean             19
    Twenty-four hour maximum             37
  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: -
    Annual geometric mean             37
    Twenty-four hour maximum             75
  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