Purpose

The purpose of this Subchapter is to control emissions of carbon monoxide from stationary sources to prevent the National Ambient Air Quality Standard from being exceeded and ensure that the present level of air quality in Oklahoma is not degraded. 17 APPENDIX E. PRIMARY AMBIENT AIR QUALITY STANDARDS [REVOKED] Sulfur Dioxide PM10 PM2.5 Carbon Monoxide Ozone Nitrogen Dioxide Lead 1-hr. max 75 ppb (1) 40 mg/m3 35 ppm (2) 100 ppb (3) 8-hr. max 10 mg/m3 9 ppm (2) 0.070 ppm (4) 24-hr. max 150 ug/m3 (5) 35 ug/m3 (6) 3-month average 0.15 ug/m3 (7) Annual 12.0 ug/m3 (8) 53 ppb (9) (1) The standard is attained when the 3-year average of the 99th percentile of the daily maximum 1-hour average at each monitor within an area does not exceed 75 ppb, as determined in accordance with 40 CFR Part 50, Appendix T. (2) The standard is attained when the 1-hour average concentration does not exceed 35 ppm and the 8-hour average concentration does not exceed 9 ppm as provided in 40 CFR 50.8. (3) The standard is attained when the 3-year average of the 98th percentile of the daily maximum 1-hour average concentration at each monitor within an area does not exceed 100 ppb as determined in accordance with 40 CFR Part 50, Appendix S. (4) The standard is attained when the computed 3-year average of the annual 4th-highest daily maximum 8-hour average does not exceed 0.070 ppm, as provided in 40 CFR 50.19. (5) The standard is attained when the expected number of days per calendar year with a 24-hour average concentration above 150 ug/m3, as determined in accordance with 40 CFR Part 50, Appendix K is equal to or less than one. (6) The standard is attained when the 98th percentile concentration is equal to or less than the numerical standard as determined by 40 CFR Part 50, Appendix N. (7) The standard is attained when the rolling 3-month maximum average does not exceed 0.15 ug/m3 more than once during a 3-year period as provided in 40 CFR 50.16. (8) The standard is attained when the annual arithmetic mean is equal to or less than the numerical standard as determined by 40 CFR Part 50, Appendix N. (9) The standard is attained when the annual arithmetic mean does not exceed 53 ppb as provided in 40 CFR 50.11. 18 APPENDIX F. SECONDARY AMBIENT AIR QUALITY STANDARDS [REVOKED] Sulfur Dioxide PM10(1) PM2.5 Carbon Monoxide(1) Ozone Nitrogen Dioxide Lead 1-hr. max 3-hr. max 1300 ug/m3 (2) 0.5 ppm 8-hr. max 0.070 ppm (3) 24-hr. max 3-month average 0.15 ug/m3 (4) Annual 15.0 ug/m3 (5) 100 ug/m3 0.053 ppm (6) (1) PM10 and carbon monoxide have no secondary standard. (2) Not to be exceeded more than once per year (3) The standard is attained when the computed 3-year average of the annual 4th-highest daily maximum 8-hour average does not exceed 0.070 ppm, as provided in 40 CFR 50.19. (4) The standard is attained when the rolling 3-month maximum average does not exceed 0.15 ug/m3 more than once during a 3-year period as provided in 40 CFR 50.16. (5) The standard is attained when the annual arithmetic mean is equal to or less than the numerical standard as determined by 40 CFR Part 50, Appendix N. (6) Annual arithmetic mean