North Carolina Administrative Code › Title 15A - Environmental Quality › Chapter 02 - Environmental Management › Subchapter Q - AIR QUALITY PERMITS PROCEDURES › Section .0700 - TOXIC AIR POLLUTANT PROCEDURES › Section 02Q .0711 - EMISSION RATES REQUIRING A PERMIT

Current through Register Vol. 39, No. 2, July 15, 2024
(a) A
				  permit to emit toxic air pollutants shall be required for any facility,
				  excluding sources exempt from evaluation by
				  15A NCAC
				  02Q .0702, if one or more emission release
				  points are obstructed or non-vertically oriented whose actual rate of emissions
				  by pollutant from all sources is greater than any one of the following toxic
				  air pollutant permitting emissions rates:
Obstructed or Non-Vertical Oriented Toxic Air
								Pollutant Permitting Emission Rates (TPER)
Pollutant (CAS Number)
Carcinogens
lb/yr
Chronic Toxicants
lb/day
Acute Systemic Toxicants lb/hr
Acute Irritants
lb/hr
acetaldehyde (75-07-0)
6.8
acetic acid (64-19-7)
0.96
acrolein (107-02-8)
0.02
acrylonitrile (107-13-1)
0.4
0.22
ammonia (7664-41-7)
0.68
aniline (62-53-3)
0.25
arsenic and inorganic arsenic compounds
0.053
asbestos (1332-21-4)
5.7 X 10-3
aziridine (151-56-4)
0.13
benzene (71-43-2)
8.1
benzidine and salts (92-87-5)
0.0010
benzo(a)pyrene (50-32-8)
2.2
benzyl chloride (100-44-7)
0.13
beryllium (7440-41-7)
0.28
beryllium chloride (7787-47-5)
0.28
beryllium fluoride (7787-49-7)
0.28
beryllium nitrate (13597-99-4)
0.28
bioavailable chromate pigments,
as chromium (VI) equivalent
0.0056
bis-chloromethyl ether (542-88-1)
0.025
bromine (7726-95-6)
0.052
1,3-butadiene (106-99-0)
11
cadmium (7440-43-9)
0.37
cadmium acetate (543-90-8)
0.37
cadmium bromide (7789-42-6)
0.37
carbon disulfide (75-15-0)
3.9
carbon tetrachloride (56-23-5)
460
chlorine (7782-50-5)
0.79
0.23
chlorobenzene (108-90-7)
46
chloroform (67-66-3)
290
chloroprene (126-99-8)
9.2
0.89
cresol (1319-77-3)
0.56
p-dichlorobenzene (106-46-7)
16.8
di(2-ethylhexyl)phthalate (117-81-7)
0.63
dimethyl sulfate (77-78-1)
0.063
1,4-dioxane (123-91-1)
12
epichlorohydrin (106-89-8)
5600
ethyl acetate (141-78-6)
36
ethylenediamine (107-15-3)
6.3
0.64
ethylene dibromide (106-93-4)
27
ethylene dichloride (107-06-2)
260
ethylene glycol monoethyl ether (110-80-5)
2.5
0.48
ethylene oxide (75-21-8)
1.8
ethyl mercaptan (75-08-1)
0.025
fluorides
0.34
0.064
formaldehyde (50-00-0)
0.04
hexachlorocyclopentadiene (77-47-4)
0.013
0.0025
hexachlorodibenzo-p-dioxin (57653- 85-7)
0.0051
n-hexane (110-54-3)
23
hexane isomers except n-hexane
92
hydrazine (302-01-2)
0.013
hydrogen chloride (7647-01-0)
0.18
hydrogen cyanide (74-90-8)
2.9
0.28
hydrogen fluoride (7664-39-3)
0.63
0.064
hydrogen sulfide (7783-06-4)
1.7
maleic anhydride (108-31-6)
0.25
0.025
manganese and compounds
0.63
manganese cyclopentadienyl tricarbonyl
								(12079-65-1)
0.013
manganese tetroxide (1317-35-7)
0.13
mercury, alkyl
0.0013
mercury, aryl and inorganic compounds
0.013
mercury, vapor (7439-97-6)
0.013
methyl chloroform (71-55-6)
250
64
methylene chloride (75-09-2)
1600
0.39
methyl ethyl ketone (78-93-3)
78
22.4
methyl isobutyl ketone (108-10-1)
52
7.6
methyl mercaptan (74-93-1)
0.013
nickel carbonyl (13463-39-3)
0.013
nickel metal (7440-02-0)
0.13
nickel, soluble compounds, as nickel
0.013
nickel subsulfide (12035-72-2)
0.14
nitric acid (7697-37-2)
0.256
nitrobenzene (98-95-3)
1.3
0.13
n-nitrosodimethylamine (62-75-9)
3.4
non-specific chromium (VI) compounds, as chromium
								(VI) equivalent
0.0056
pentachlorophenol (87-86-5)
0.063
0.0064
perchloroethylene (127-18-4)
13000
phenol (108-95-2)
0.24
phosgene (75-44-5)
0.052
phosphine (7803-51-2)
0.032
polychlorinated biphenyls (1336-36- 3)
5.6
soluble chromate compounds, as chromium (VI)
								equivalent
0.013
styrene (100-42-5)
2.7
sulfuric acid (7664-93-9)
0.25
0.025
tetrachlorodibenzo-p-dioxin (1746- 01-6)
0.00020
1,1,2,2-tetrachloroethane (79-34-5)
430
toluene (108-88-3)
98
14.4
toluene diisocyanate,2,4-(584-84-9) and 2,6-
								(91-08-7) isomers
0.003
trichloroethylene (79-01-6)
4000
vinyl chloride (75-01-4)
26
vinylidene chloride (75-35-4)
2.5
xylene (1330-20-7)
57
16.4
(b) A permit to emit toxic air pollutants
				  shall be required for any facility if all emission release points are
				  unobstructed and vertically oriented whose actual rate of emissions from all
				  sources is greater than any one of the following toxic air pollutant permitting
				  emissions rates:
Unobstructed Toxic Air Pollutant Permitting
								Emission Rates (TPER)
Pollutant (CAS Number)
Carcinogens
lb/yr
Chronic Toxicants
lb/day
Acute Systemic Toxicants lb/hr
Acute Irritants
lb/hr
acetaldehyde (75-07-0)
28.43
acetic acid (64-19-7)
3.90
acrolein (107-02-8)
0.08
acrylonitrile (107-13-1)
1.3
1.05
ammonia (7664-41-7)
2.84
aniline (62-53-3)
1.05
arsenic and inorganic arsenic compounds
0.194
asbestos (1332-21-4)
7.748 x 10-3
aziridine (151-56-4)
0.3
benzene (71-43-2)
11.069
benzidine and salts (92-87-5)
1.384 x 10-3
benzo(a)pyrene (50-32-8)
3.044
benzyl chloride (100-44-7)
0.53
beryllium (7440-41-7)
0.378
beryllium chloride (7787-47-5)
0.378
beryllium fluoride (7787-49-7)
0.378
beryllium nitrate (13597-99-4)
0.378
bioavailable chromate pigments,
as chromium (VI) equivalent
0.008
bis-chloromethyl ether (542-88-1)
0.034
bromine (7726-95-6)
0.21
1,3-butadiene (106-99-0)
40.585
cadmium (7440-43-9)
0.507
cadmium acetate (543-90-8)
0.507
cadmium bromide (7789-42-6)
0.507
carbon disulfide (75-15-0)
7.8
carbon tetrachloride (56-23-5)
618.006
chlorine (7782-50-5)
1.6
0.95
chlorobenzene (108-90-7)
92.7
chloroform (67-66-3)
396.631
chloroprene (126-99-8)
18.5
3.69
cresol (1319-77-3)
2.32
p-dichlorobenzene (106-46-7)
69.50
di(2-ethylhexyl)phthalate (117-81-7)
1.3
dimethyl sulfate (77-78-1)
0.1
1,4-dioxane (123-91-1)
23.6
epichlorohydrin (106-89-8)
7655.891
ethyl acetate (141-78-6)
147.41
ethylenediamine (107-15-3)
12.6
2.63
ethylene dibromide (106-93-4)
36.896
ethylene dichloride (107-06-2)
350.511
ethylene glycol monoethyl ether (110-80-5)
5.1
2.00
ethylene oxide (75-21-8)
2.490
ethyl mercaptan (75-08-1)
0.11
fluorides
0.7
0.26
formaldehyde (50-00-0)
0.16
hexachlorocyclopentadiene (77-47-4)
2.5 x 10-2
0.01
hexachlorodibenzo-p-dioxin (57653- 85-7)
0.007
n-hexane (110-54-3)
46.3
hexane isomers except n-hexane
379.07
hydrazine (302-01-2)
2.5 x 10-2
hydrogen chloride (7647-01-0)
0.74
hydrogen cyanide (74-90-8)
5.9
1.16
hydrogen fluoride (7664-39-3)
1.3
0.26
hydrogen sulfide (7783-06-4)
5.1
maleic anhydride (108-31-6)
0.5
0.11
manganese and compounds
1.3
manganese cyclopentadienyl tricarbonyl
								(12079-65-1)
2.5 x 10-2
manganese tetroxide (1317-35-7)
0.3
mercury, alkyl
2.5 x 10-3
mercury, aryl and inorganic compounds
2.5 x 10-2
mercury, vapor (7439-97-6)
2.5 x 10-2
methyl chloroform (71-55-6)
505.4
257.98
methylene chloride (75-09-2)
2213.752
1.79
methyl ethyl ketone (78-93-3)
155.8
93.19
methyl isobutyl ketone (108-10-1)
107.8
31.59
methyl mercaptan (74-93-1)
0.05
nickel carbonyl (13463-39-3)
2.5 x 10-2
nickel metal (7440-02-0)
0.3
nickel, soluble compounds, as nickel
2.5 x 10-2
nickel subsulfide (12035-72-2)
0.194
nitric acid (7697-37-2)
1.05
nitrobenzene (98-95-3)
2.5
0.53
n-nitrosodimethylamine (62-75-9)
4.612
non-specific chromium (VI) compounds, as chromium
								(VI) equivalent
0.008
pentachlorophenol (87-86-5)
0.1
0.03
perchloroethylene (127-18-4)
17525.534
phenol (108-95-2)
1.00
phosgene (75-44-5)
0.1
phosphine (7803-51-2)
0.14
polychlorinated biphenyls (1336-36- 3)
7.656
soluble chromate compounds, as chromium (VI)
								equivalent
2.6 x 10-2
styrene (100-42-5)
11.16
sulfuric acid (7664-93-9)
0.5
0.11
tetrachlorodibenzo-p-dioxin (1746- 01-6)
2.767 x 10-4
1,1,2,2-tetrachloroethane (79-34-5)
581.110
toluene (108-88-3)
197.96
58.97
toluene diisocyanate,2,4-(584-84-9) and 2,6-
								(91-08-7) isomers
8.4 x 10-3
trichloroethylene (79-01-6)
5442.140
vinyl chloride (75-01-4)
35.051
vinylidene chloride (75-35-4)
5.1
xylene (1330-20-7)
113.7
68.44
(c) For the following pollutants, the highest
				  emissions occurring in any 15-minute period shall be multiplied by four and the
				  product shall be compared to the value in Paragraph (a) or (b), as applicable:
(1) acetaldehyde (75-07-0);
(2) acetic acid (64-19-7);
(3) acrolein (107-02-8);
(4) ammonia (7664-41-7);
(5) bromine (7726-95-6);
(6) chlorine (7782-50-5);
(7) formaldehyde (50-00-0);
(8) hydrogen chloride (7647-01-0);
(9) hydrogen fluoride (7664-39-3);
				  and
(10) nitric acid
				  (7697-37-2).