401 Ky. Admin. Regs. 53:010
RELATES TO: KRS 224.20-100, 224.20-110, 224.20-120, 40 C.F.R. Parts 50, 51, 52, 53, 58, 75, 81, 42 U.S.C. 7401-7671q
NECESSITY, FUNCTION, AND CONFORMITY: KRS 224.10-100(5) requires the cabinet to promulgate administrative regulations for the prevention, abatement, and control of air pollution. This administrative regulation establishes ambient air quality standards necessary for the protection of the public health, the general welfare, and the property and people in the Commonwealth of Kentucky.
AMBIENT AIR QUALITY STANDARDS The following air contaminant concentrations shall apply to any single point location: | ||
Pollutant | Primary Standard | Secondary Standard |
Carbon Monoxide Eight (8) hour average One (1) hour average | 9 ppm(1) (10 mg/m3) 35 ppm(1) (40 mg/m3) | ---- |
Lead Rolling three (3) month mean | 0.15 µg/m3 | Same as primary |
Nitrogen Dioxide Annual arithmetic mean One (1) hour average | 53 ppb (100 ng/m3)(2) 100 ppb | Same as primary -- |
Ozone One (1) hour average Eight (8) hour average 2015 standard 2008 standard 1997 standard | 0.12 ppm(3) 0.070 ppm 0.075 ppm 0.08 ppm(4) | Same as primary(3) Same as primary Same as primary Same as primary(4) |
Particulate Matter, measured as PM10 Twenty-four (24) hour average | 150 µg/m3 | Same as primary |
Particulate Matter, measured as PM2.5 Annual arithmetic mean 2012 standard 2006 standard 1997 standard Twenty-four (24) hour average 2012 standard 2006 standard 1997 standard | 12.0 µg/m3 15.0 µg/m3 15.0 µg/m3 35 µg/m3 35 µg/m3 65 µg/m3 | (5) Same as primary Same as primary (5) Same as primary Same as primary |
Sulfur Dioxide Annual arithmetic mean One (1) hour average Three (3) hour average Twenty-four (24) hour average | 0.030 ppm(1)(6) 75 ppb -- 0.14 ppm(1)(6) | ---- 0.5 ppm(1) -- |
Gaseous Fluorides - (expressed as HF) Annual arithmetic mean One (1) month average One (1) week average Twenty-four (24) hour average Twelve (12) hour average | 400 µg/m3 (0.5 ppm) -- -- 800 µg/m3(1) (1.0 ppm) -- | -- 0.82 µg/m(1) (1.00 ppb) 1.64 µg/m3(1) (2.00 ppb) 2.86 µg/m3(1) (3.50 ppb) 3.68 µg/m3(1) (4.50 ppb) |
Hydrogen Sulfide One (1) hour average | -- | 14 µg/m3(1) (0.01 ppm) |
Odors | -- | A mixture of one (1) volume of ambient air and seven (7) volumes of odorless air shall have no detectable odor at any time. |
Total Fluorides Dry weight basis (as fluoride ion) in and on forage for consumption by grazing ruminants: Average concentration of monthly samples over growing season (not to exceed six (6) consecutive months) Two (2) month average One (1) month average | ---- -- | 40 ppm 60 ppm 80 ppm |
Footnotes: 1 Average is not to be exceeded more than once per calendar year. 2 The official level of the annual NO2 standard is 0.053 ppm, equal to fifty-three (53) ppb, which is shown for the purpose of clearer comparison to the one (1) hour standard. 3 The U.S. Environmental Protection Agency revoked the one (1) hour ozone standard in all areas in 2005. However, some areas have continuing obligations under the standard. 4 The U.S. Environmental Protection Agency revoked the 1997 eight (8) hour ozone standard in 2015. However, some areas have continuing obligations under the standard. 5 The secondary ambient air quality standard was not adjusted from the previously established standard. 6 The 1971 sulfur dioxide standards remain in effect until one (1) year after an area is designated for the 2010 standard, except that in areas designated nonattainment for the 1971 standards, the 1971 standards remain in effect until implementation plans to attain or maintain the 2010 standards are approved, in accordance with 40 C.F.R. Part 52 , Subpart S. | ||
401 KAR 53:010
STATUTORY AUTHORITY: KRS 224.10-100(5), 42 U.S.C. 7401-7671q