Kentucky Administrative Regulations › Title 401 - ENERGY AND ENVIRONMENT CABINET - DEPARTMENT FOR ENVIRONMENTAL PROTECTION › Chapter 53 - Ambient Air Quality › Section 401 KAR 53:010 - Ambient air quality standards

Current through Register Vol. 51, No. 1, July 1, 2024
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.
Section 1. Ambient Air
			 Quality Standards. The primary and secondary ambient air quality standards for
			 sulfur oxides, particulate matter, carbon monoxide, ozone, nitrogen dioxide,
			 lead, hydrogen sulfide, gaseous fluorides, total fluorides, and odors are
			 specified in Appendix A of this administrative regulation. Measurements shall
			 be made by methods and frequency specified in Section 2 of this administrative
			 regulation.
Section 2. Methods of
			 Measurement. For those air contaminants for which there are state ambient air
			 quality standards that are the same as the national ambient air quality
			 standards, measurements shall be made in accordance with 40 C.F.R. Parts 50 and
			 53. For other air contaminants for which there are state ambient air quality
			 standards, measurements shall be made according to this administrative
			 regulation, reference methods, or equivalent methods. The frequency of
			 measurements for all air contaminants shall be prescribed by the cabinet, in
			 accordance with 40 C.F.R. Parts 50 and 53, 401 KAR 50:015, or this
			 administrative regulation.
Section
			 3. Within sixty (60) days of promulgation or revision of any
			 primary or secondary ambient air quality standard by the U.S. EPA, the cabinet
			 shall initiate proceedings to promulgate or review this administrative
			 regulation in conformance with the federal ambient air quality
			 standards.
Section 4. Appendix A.
			 Ambient Air Quality Standards.
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.
STATUTORY AUTHORITY:
				  KRS
				  224.10-100(5),
				  42 U.S.C.
				  7401-7671q