Idaho Administrative Code › Title IDAPA 58 - Environmental Quality, Department of › Rule 58.01.01 - RULES FOR THE CONTROL OF AIR POLLUTION IN IDAHO › Section 58.01.01.585 - TOXIC AIR POLLUTANTS NON-CARCINOGENIC INCREMENTS

Current through August 31, 2023
The screening emissions levels (EL) and acceptable ambient
				concentrations (AAC) for non-carcinogens are as provided in the following
				table. The AAC in this section are twenty-four (24) hour averages.
				(3-28-23)
CAS NUMBER
SUBSTANCE
OEL
							 (mg/m3)
EL (Ib/hr)
AAC
							 (mg/m3)
60-35-5
Acetamide (NY)
-
0.002
0.0003
64-19-7
Acetic acid
25
1.67
1.25
108-24-7
Acetic anhydride
20
1.33
1
67-64-1
Acetone
1780
119
89
75-05-8
Acetonitrile
67
4.47
3.35
540-59-0
Acetylene dichloride, See
							 1,2-Dichloroethylene
79-27-6
Acetylene tetrabromide
15
1
.75
107-02-8
Acrolein
0.25
0.017
0.0125
79-10-7
Acrylic acid
30
2
1.5
107-18-6
Allyl alcohol
5
0.333
.25
106-92-3
Allyl glycidyl ether
22
1.47
1.1
2179-59-1
Allyl propyl disulfide
12
0.8
0.6
7429-90-5
Aluminum Including:
NA
Metal & Oxide
10
0.667
0.5
NA
Pyro powders
5
0.333
0.25
NA
Soluble salts
2
0.133
0.10
NA
Alkyls not otherwise classified
2
0.133
0.10
141-43-5
2-Aminoethanol, See Ethanolamine
504-29-0
2-Aminopyridine
2
0.133
0.10
7664-41-7
Ammonia
18
1.2
0.9
12125-02-9
Ammonium chloride fume
10
0.667
0.5
3825-26-1
Ammonium perfluo-octanoate
0.1
0.007
0.05
7773-06-0
Ammonium sulfamate
10
0.667
0.5
628-63-7
n-Amyl acetate
530
35.3
26.5
626-38-0
Sec-Amyl acetate
665
44.3
33.25
7440-36-0
Antimony & compounds, as Sb (handling &
							 use)
0.5
0.033
0.025
86-88-4
ANTU
0.3
0.02
0.015
7784-42-1
Arsine
0.2
0.013
0.01
86-50-0
Azinphos-methyl
0.2
0.013
0.01
7440-39-3
Barium, soluble compounds, as Ba
0.5
0.033
0.025
17804-35-2
Benomyl
10
0.67
0.5
7106-51-4
p-Benzoquinone, See
							 Quinone
94-36-0
Benzoyl peroxide
5
0.333
0.25
92-52-4
Biphenyl
1.5
0.1
0.075
1304-82-1
Bismuth telluride undoped
10
0.667
0.05
NA
Bismuth telluride if selenium doped
5
0.333
0.25
1303-96-4
Borates, tetra odium salts - Including:
NA
Anhydrous
1
0.067
0.05
NA
Decahydrate
5
0.333
0.25
NA
Pentahydrate
1
0.067
0.05
1303-86-2
Boron oxide
10
0.667
0.5
10294-33-4
Boron tribromide
10
0.667
0.5
7637-07-2
Boron trifluoride
3
0.2
0.25
314-40-9
Bromacil
10
0.667
0.5
7726-95-6
Bromine
0.7
0.047
0.035
7789-30-2
Bromine penta-fluoride
0.7
0.047
0.035
75-25-2
Bromoform
5
0.333
0.25
109-79-5
Butanethiol, see Butyl mercaptan
78-93-3
2-Butanone, see Methyl ethyl ketone
112-07-2
2-butoxyethyl acetate
-
8.33
1.25
111-76-2
2-Butoxyethanol (EGBG)
120
8
6
123-86-4
n-Butyl acetate
710
47.3
35.5
105-46-4
sec-Butyl acetate
950
63.3
47.5
540-88-5
tert-Butyl acetate
950
63.3
47.5
141-32-2
Butyl acrylate
55
3.67
2.75
71-36-3
n-Butyl alcohol
150
10
7.5
78-92-2
Sec-Butyl alcohol
305
20.3
15.25
75-65-0
tert-Butyl alcohol
300
20
15
109-73-9
Butylamine
15
1
.75
124-17-4
Butyl carbitol acetate (ID)
-
0.846
.625
1189-85-1
tert-Butyl chromate, as CrO3
0.1
0.007
.005
2426-08-6
n-Butyl glycidyl ether
135
9
6.75
138-22-7
n-Butyl lactate
25
1.67
1.25
109-79-5
Butyl mercaptan
1.8
0.12
0.09
89-72-5
o-sec-Butylphenol
30
2
1.5
98-51-1
p-tert-Butyltoluene
60
4
3
1317-65-3
Calcium carbonate
10
0.667
0.5
156-62-7
Calcium cyanamide
0.5
0.033
0.025
1305-62-0
Calcium hydroxide
5
0.333
0.25
1305-78-8
Calcium oxide
2
0.133
0.1
1344-95-2
Calcium silicate (synthetic)
10
0.667
0.5
13397-24-5
Calcium sulfate
10
0.667
0.5
76-22-2
Camphor, synthetic
12
0.8
0.6
105-60-2
Caprolactam - Including:
Dust
1
0.067
0.05
Vapor
20
1.33
1.0
1333-86-4
Carbon black
3.5
0.23
0.175
2425-06-1
Captafol
0.1
0.007
0.005
133-06-2
Captan
5
0.333
0.25
463-58-1
Carbonyl sulfide
0.4
0.027
0.02
63-25-2
Carbaryl
5
0.333
0.25
1563-66-2
Carbofuran
0.1
0.007
0.005
75-15-0
Carbon disulfide
30
2
1.5
558-13-4
Carbon tetrabromide
1.4
0.093
0.07
75-44-5
Carbonyl chloride, See Phosgene
353-50-4
Carbonyl fluoride
5
0.333
0.25
120-80-9
Catechol
20
1.33
1.0
21351-79-1
Cesium hydroxide
2
0.133
0.10
133-90-4
Chloramben (PL)
-
887
133
8001-35-2
Chlorinated camphene
0.5
0.0333
0.025
31242-93-0
Chlorinated diphenyl oxide
0.5
0.033
0.025
7782-50-5
Chlorine
3
0.2
0.15
10049-04-4
Chlorine dioxide
0.3
0.02
0.015
7790-91-2
Chlorine trifluoride (CL)
0.38
0.025
0.002
107-20-0
Chloroacetaldehyde
0.32
0.021
0.015
78-95-5
Chloroacetone
0.38
0.0253
0.019
532-27-4
a-Chloroacetophenone
0.32
0.021
0.016
79-04-9
Chloroacetyl chloride
0.2
0.013
0.01
108-90-7
Chlorobenzene
350
23.3
17.5
510-15-6
Chlorobenzilate (PL 1)
-
0.047
0.035
2698-41-1
O-Chlorobenzylidene malononitrile
							 (CL)
0.4
0.0027
0.03
126-99-8
2-Chloro-1,3-butadiene, see
							 B-Chloroprene
107-07-3
2-Chloroethanol, see Ethylene
							 chlorohydrin
600-25-9
1-Chloro-1-nitro propane
10
0.667
0.5
95-57-8
2-Chlorophenol (and all isomers) (ID)
-
0.033
0.025
76-06-2
Chloropicrin
0.7
0.047
0.037
126-99-8
B-chloroprene
36
2.4
1.8
2039-87-4
o-Chlorostyrene
285
19
14.25
95-49-8
o-Chlorotoluene
250
16.7
12.5
1929-82-4
2-Chloro-6-(tri-chloromethyl) pyridine, see
							 Nitrapyrin
2921-88-2
Chlorpyrifos
0.2
0.013
0.01
7440-47-3
Chromium metal - Including:
0.5
0.033
0.025
7440-47-3
Chromium (II) compounds, as Cr
0.5
0.033
0.025
16065-83-1
Chromium (III) compounds, as Cr
0.5
0.033
0.025
2971-90-6
Clopidol
10
0.667
0.5
NA
Coal dust (<5% silica)
2
0.133
0.1
10210-68-1
Cobalt carbonyl as Co
0.1
0.007
0.005
16842-03-8
Cobalt hydrocarbonyl as Co
0.1
0.007
0.005
7440-48-4
Cobalt metal, dust, and fume
0.05
0.0033
0.0025
7440-50-8
Copper:
7440-50-8
Fume
0.2
0.013
0.01
7440-50-8
Dusts & mists, as Cu
1
0.067
0.05
95-48-7
o-Cresol
22
1.47
1.1
108-39-4
m-Cresol
22
1.47
1.1
106-44-5
p-Cresol
22
1.47
1.1
1319-77-3
Cresols/Cresylic Acid (isomers and
							 mixtures)
22
1.47
1.1
123-73-9
Crotonaldehyde
5.7
0.38
0.285
299-86-5
Cruformate
5
0.333
0.25
98-82-8
Cumene
245
16.3
12.25
420-04-2
Cyanamide
2
0.133
0.1
592-01-8
Cyanide and compounds as CN
5
0.333
0.25
110-82-7
Cyclohexane
1050
70
52.5
108-93-0
Cyclohexanol
200
13.3
10
108-94-1
Cyclohexanone
100
6.67
5
110-83-8
Cyclohexene
1015
67.7
50.75
108-91-8
Cyclohexylamine
41
2.73
2.05
121-82-4
Cyclonite
1.5
0.1
0.075
542-92-7
Cyclopentadiene
200
13.3
10
287-92-3
Cyclopentane
1720
114.667
86
94-75-7
2,4-D
10
0.667
0.5
17702-41-9
Decaborane
0.3
0.02
0.015
8065-48-3
Demeton
0.1
0.007
0.005
123-42-2
Diacetone alcohol
240
16
12
39393-37-8
Dialkyl phthalate (ID)
-
16.4
2.46
107-15-3
1,2-Diaminoethane, See Ethylenediamine
333-41-5
Diazinon
0.1
0.007
0.005
334-88-3
Diazomethane
0.34
0.023
0.017
19287-45-7
Diborane
0.1
0.007
0.005
102-81-8
2-N-Dibutylamino ethanol
14
0.933
0.7
2528-36-1
Dibutyl phenyl phosphate
3.5
0.233
0.175
107-66-4
Dibutyl phosphate
8.6
0.573
0.43
84-74-2
Dibutyl phthalate
5
0.333
0.25
7572-29-4
Dichloroacetylene
0.39
0.0026
0.0195
95-50-1
o-Dichlorobenzene
300
20
15
106-46-7
1,4-Dichlorobenzene
450
30
22.5
118-52-5
1,3-Dichloro-5, 5-dimethyl hydantoin
0.2
0.013
0.025
75-34-3
Dichloroethane
405
27
20.25
540-59-0
1,2-Dichloroethylene
790
52.7
39.5
111-44-4
Dichloroethyl ether
30
2
1.5
75-43-4
Dichlorofluoromethane
40
2.67
2
594-72-9
1, l-Dichloro-l-nitroethane
10
0.667
0.5
78-87-5
1,2-Dichloropropane, see Propylene
							 dichloride
75-99-0
2,2-Dichloropropionic acid
6
0.4
0.3
62-73-7
Dichlorvos
1
0.067
0.05
141-66-2
Dicrotophos
0.25
0.017
0.125
77-73-6
Dicyclopentadiene
30
2
1.5
102-54-5
Dicyclopentadienyl iron
10
0.667
0.5
111-42-2
Diethanolamine
15
1
0.75
109-89-7
Diethylamine
30
2
1.5
100-37-8
2-Diethylamino-ethanol
50
3.33
2.5
111-40-0
Diethylene triamine
4
0.267
0.2
60-29-7
Diethyl ether
1200
80
60
96-22-0
Diethyl Ketone
705
47
35.25
84-66-2
Diethyl phthalate
5
0.333
0.25
2238-07-5
Diglycidyl ether (DGE)
0.53
0.035
0.0265
123-31-9
Dihydroxybenzene, see Hydroquinone
108-83-8
Diisobutyl ketone
145
9.67
7.25
108-18-9
Diisopropylamine
20
1.33
1
127-19-5
Dimethyl acetamide
35
2.33
1.75
124-40-3
Dimethylamine
9.2
0.613
0.46
60-11-7
Dimethyl aminoazo-benzene (NY)
-
0.002
0.0003
1300-73-8
Dimethylamino-benzene, see
							 Xylidine
121-69-7
Dimethylaniline (N,N-Dimethylaniline)
25
1.67
1.25
1330-20-7
Dimethylbenzene, see Xylene
300-76-5
Dimethyl-1,2-dibromo-2-dichloroethyl phosphate, see
							 Naled
68-12-2
Dimethylformamide
30
2
1.5
108-83-8
2,6-Dimethyl-4-heptanone, see Diisobutyl
							 ketone
131-11-3
Dimethylphthalate
5
0.333
0.25
148-01-6
Dinitolmide
5
0.333
0.25
528-29-0
Dinitrobenzene
1
0.067
0.05
99-65-0
m (or) 1,3-Dinitrobenzene
1
0.067
0.05
100-25-4
p (or) 1,4-Dinitrobenzene
1
0.067
0.05
534-52-1
Dinitro-o-cresol
0.2
0.013
0.01
148-01-6
3,5-Dinitro-o-toluamide, see Dinitolmide
117-84-0
N-Dioctyl Phthalate
5
0.333
0.25
78-34-2
Dioxathion
0.2
0.013
0.01
92-52-4
Diphenyl, see
							 Biphenyl
122-39-4
Diphenylamine
10
0.667
0.5
Diphenyl methane diisocyanate, see Methylenediphenyl
							 diisocyanate
34590-94-8
Dipropylene glycol methyl ether
600
40
30
123-19-3
Dipropyl ketone
235
15.7
11.75
85-00-7
Diquat
0.5
0.033
0.01
97-77-8
Disulfiram
2
0.133
0.1
298-04-4
Disulfoton
0.1
0.007
0.005
128-37-0
2,6-Ditert. butyl-p-cresol
10
0.667
0.5
330-54-1
Diuron
10
0.667
0.5
108-57-6
Divinyl benzene
50
3.33
2.5
1302-74-5
Emery (corundum) total dust (> 1%
							 silica)
10
0.667
0.5
115-29-7
Endosulfan
0.1
0.007
0.005
72-20-8
Endrin
0.1
0.007
0.005
13838-16-9
Enflurane
566
37.7
28.3
1395-21-7
Enzymes, see
							 Subtilisins
2104-64-5
EPN (Ethoxy-4-Nitro-phenoxy
							 phenylphosphine)
0.5
0.033
0.025
106-88-7
1,2-Epoxybutane (MI)
-
0.8
0.6
75-56-9
1,2-Epoxypropane, see Propylene
							 oxide
556-52-5
2,3-Epoxy-1-propanol, see Glycidol
75-08-1
Ethanethiol, see Ethyl mercaptan
141-43-5
Ethanolamine
8
0.533
0.4
563-12-2
Ethion
0.4
0.027
0.02
110-80-5
2-Ethoxyethanol
19
1.27
0.95
111-15-9
2-Ethoxyethyl acetate (EGEEA)
27
1.8
1.35
141-78-6
Ethyl acetate
1400
93.3
70
64-17-5
Ethyl alcohol
1880
125
94
75-04-7
Ethylamine
18
1.2
0.9
541-85-5
Ethyl amyl ketone
130
8.67
6.5
100-41-4
Ethyl benzene
435
29
21.75
74-96-4
Ethyl bromide
22
1.47
1.1
106-35-4
Ethyl butyl ketone
230
15.3
11.5
51-79-6
Ethyl carbamate (Urethane) (WA)
-
0.002
0.0015
75-00-3
Ethyl chloride
2640
176
132
107-07-3
Ethylene chlorohydrin
3
0.2
0.15
107-15-3
Ethylenediamine
25
1.67
1.25
107-06-2
Ethylene dichloride
40
2.667
2
107-21-1
Ethylene glycol vapor (CL)
127
0.846
6.35
628-96-6
Ethylene glycol denigrate
0.31
0.021
0.016
110-49-6
Ethylene glycol methyl ether acetate, see
							 2-Methoxyethyl acetate
96-45-7
Ethylene thiourea (PL 2)
-
0.047
0.035
109-94-4
Ethyl formate
300
20
15
16219-75-3
Ethylidene norbornene (CL)
25
0.167
1.25
75-08-1
Ethyl mercaptan
1
0.067
0.05
100-74-3
N-Ethylmorpholine
23
1.53
1.15
78-10-4
Ethyl silicate
85
5.67
4.25
22224-92-6
Fenamiphos
0.1
0.007
0.005
115-90-2
Fensulfothion
0.1
0.007
0.005
55-38-9
Fenthion
0.2
0.013
0.01
14484-64-1
Ferbam
10
0.667
0.5
12604-58-9
Ferrovanadium dust
1
0.067
0.05
NA
Fibrous glass dust
10
0.667
0.5
NA
Fine Mineral Fibers - Including: mineral fiber
							 emissions from facilities manufacturing or processing glass, rock, or slag
							 fibers (or other mineral derived fibers) of average diameter 1 micrometer or
							 less. (ID)
-
0.661
0.5
NA
Fluorides, as F
2.5
0.167
0.125
7782-41-4
Fluorine
2
0.133
0.1
944-22-9
Fonofos
0.1
0.007
0.005
75-12-7
Formamide
30
2
1.5
64-18-6
Formic acid
9.4
0.627
0.47
98-01-1
Furfural
8
0.533
0.4
98-00-0
Furfuryl alcohol
40
2.67
2
7782-65-2
Germanium tetrahydride
0.6
0.04
0.03
NA
Glass, Fibrous or dust, see Fibrous glass
							 dust
111-30-8
Glutaraldehyde (CL)
0.82
0.0047
0.041
556-52-5
Glycidol
75
5
3.75
110-80-5
Glycol monoethyl ether, see
							 2-Ethoxyethanol
7440-58-6
Hafnium
0.5
0.033
0.025
110-43-0
2-Heptanone, see Methyl n-amyl
							 ketone
106-35-4
3-Heptanone, see Ethyl butyl ketone
151-67-7
Halothane
404
26.9
20.2
142-82-5
Heptane (n-Heptane)
1640
109
82
77-47-4
Hexachlorocyclopentadiene
0.1
0.007
0.005
1335-87-1
Hexachloronaphthalene
0.2
0.013
0.010
684-16-2
Hexafluoroacetone
0.7
0.047
0.035
822-06-0
Hexamethylene diisocyanate
0.03
0.002
0.0015
680-31-9
Hexamethylphosphoramide (WA)
-
0.002
0.0015
110-54-3
Hexane (n-Hexane)
180
12
9
591-78-6
2-Hexanone, see Methyl n-butyl ketone
108-10-1
Hexone, see Methyl isobutyl ketone
108-84-9
sec-Hexyl acetate
300
20
15
107-41-5
Hexylene glycol (CL)
121
0.806
6.05
37275-59-5
Hydrogenated terphenyls
5
0.333
0.25
10035-10-6
Hydrogen bromide (CL)
10
0.0667
0.5
7647-01-0
Hydrogen chloride (CL)
7.5
0.05
0.375
7722-84-1
Hydrogen peroxide
1.5
0.1
0.075
7783-06-4
Hydrogen sulfide
14
0.933
0.7
123-31-9
Hydroquinone
2
0.133
0.1
123-42-2
4-Hydroxy-4-Methyl-2-pentanone, see Diacetone
							 alcohol
999-61-1
2 -Hydroxypropyl acrylate
3
0.2
0.15
95-13-6
Indene
45
3
2.25
7440-74-6
Indium & compounds as In
0.1
0.007
0.005
7553-56-2
Iodine (CL)
0.1
0.0067
0.005
75-47-8
Iodoform
10
0.667
0.5
1309-37-1
Iron oxide fume (Fe2O3) as Fe
5
0.333
0.25
13463-40-6
Iron pentacarbonyl as Fe
0.8
0.053
0.04
7439-89-6
Iron salts, soluble, as Fe
1
0.067
0.05
123-92-2
Isoamyl acetate
525
35
26.25
123-51-3
Isoamyl alcohol
360
24
18
110-19-0
Isobutyl acetate
700
46.7
35
78-83-1
Isobutyl alcohol
150
10
6
26952-21-6
Isooctyl alcohol
270
18
13.5
78-59-1
Isophorone
28
1.867
1.4
4098-71-9
Isophorone diisocyanate
0.09
0.006
0.0045
109-59-1
Isopropoxyethanol
105
7
5.25
108-21-4
Isopropyl Acetate
1040
69.3
52
67-63-0
Isopropyl alcohol
980
65.3
49
75-31-0
Isopropylamine
12
0.8
0.6
643-28-7
N-Isopropylaniline
10
0.667
0.5
108-20-3
Isopropyl ether
1040
69.3
52
4016-14-2
Isopropyl glycidyl ether (IGE)
240
16
12
1332-58-7
Kaolin (respirable dust)
2
0.133
0.1
463-51-4
Ketene
0.9
0.06
0.045
7580-67-8
Lithium hydride
0.025
0.002
0.00125
546-93-0
Magnesite
10
0.667
0.5
1309-48-4
Magnesium oxide fume
10
0.667
0.5
121-75-5
Malathion
10
0.667
0.5
108-31-6
Maleic anhydride
1
0.067
0.05
7439-96-5
Manganese as Mn Including:
7439-96-5
Dust & compounds
5
0.333
0.25
7439-96-5
Fume
1
0.067
0.05
101-68-8
MDI, see Methylene diphenyl isocyanate
NA
Mercaptans not otherwise listed (ID)
-
0.033
0.025
141-79-7
Mesityl oxide
60
4
3
79-41-4
Methacrylic acid
70
4.67
3.5
74-93-1
Methanethiol, see Methyl mercaptan
67-56-1
Methanol
260
17.3
13
16752-77-5
Methomyl
2.5
0.17
0.125
72-43-5
Methoxychlor
10
0.667
0.5
109-86-4
2-Methoxyethanol
16
1.07
0.8
110-49-6
2-Methoxyethyl acetate
24
1.6
1.2
150-76-5
4-Methoxyphenol
5
0.333
0.25
108-65-6
1-methoxy-2-propyl acetate (ID)
n/a
24
3.6
79-20-9
Methyl acetate
610
40.7
30.5
74-99-7
Methyl acetylene
1640
109
82
NA
Methyl acetylene-propadiene mix
							 (MAPP)
1640
109
82
96-33-3
Methyl acrylate
35
2.33
1.75
126-98-7
Methylacrylonitrile
3
0.2
0.15
74-89-5
Methylamine
12
0.8
0.6
108-11-2
Methyl emyl alcohol, see Methyl isobutyl
							 carbinol
110-43-0
Methyl n-amyl ketone
235
15.7
11.75
100-61-8
N-Methyl aniline
2
0.133
0.1
74-83-9
Methyl bromide
19
1.27
0.95
591-78-6
Methyl n-butyl ketone
20
1.33
1
74-87-3
Methyl chloride
103
6.867
5.15
71-55-6
Methyl chloroform
1910
127
95.5
137-05-3
Methyl 2-cyano-acrylate
8
0.533
0.4
25639-42-3
Methylcyclohexanol
235
15.7
11.75
583-60-8
o-Methylcyclohexanone
230
15.3
11.5
8022-00-2
Methyl demeton
0.5
0.033
0.01
101-68-8
Methylenediphenyl diisocyanate (MDI)
0.05
0.003
0.0025
5124-30-1
Methylene bis (4-cyclohexyl
							 isocyanate)
0.11
0.007
0.0055
78-93-3
Methyl ethyl ketone (MEK)
590
39.3
29.5
1338-23-4
Methyl ethyl ketone peroxide (CL)
1.5
0.01
0.0075
107-31-3
Methyl formate
246
16.4
12.3
541-85-5
5-Methyl-3-heptanone, see Ethyl amyl
							 ketone
110-12-3
Methyl isoamyl ketone
240
16
12
108-11-2
Methyl isobutyl carbinol
104
6.93
5.2
108-10-1
Methyl isobutyl ketone
205
13.7
10.25
624-83-9
Methyl isocyanate
0.05
0.003
0.0025
563-80-4
Methyl isopropyl ketone
705
47
35.25
74-93-1
Methyl mercaptan
0.5
0.033
0.025
80-62-6
Methyl methacrylate
410
27.3
20.5
298-00-0
Methyl parathion
0.2
0.013
0.01
107-87-9
Methyl propyl ketone
700
46.7
35
681-84-5
Methyl silicate
6
0.4
0.3
98-83-9
a-Methyl styrene
240
16
10.20
109-87-5
Methylal (dimethoxymethane)
3110
207
155.5
108-87-2
Methylcyclohexane
1610
107
80.5
21087-64-9
Metribuzin
5
0.333
0.25
7786-34-7
Mevinphos
0.1
0.007
0.005
12001-26-2
Mica (Respirable dust)
3
0.2
0.15
NA
Mineral Wool Fiber (no asbestos)
10
0.667
0.5
7439-98-7
Molybdenum as Mo -
							 Including:
108-90-7
Monochlorobenzene, see
							 Chlorobenzene
6923-22-4
Monocrotophos
0.25
0.017
0.0125
110-91-8
Morpholine
70
4.67
0.35
300-76-5
Naled
3
0.2
0.15
91-20-3
Naphthalene
50
3.33
2.5
54-11-5
Nicotine
0.5
0.033
0.025
1929-82-4
Nitrapyrin
10
0.667
0.5
7697-37-2
Nitric acid
5
0.333
0.25
100-01-6
p-Nitroaniline
3
0.2
0.15
98-95-3
Nitrobenzene
5
0.333
0.25
100-00-5
p-Nitrochlorobenzene
3
0.2
0.15
79-24-3
Nitroethane
310
20.7
15.5
7783-54-2
Nitrogen trifluoride
29
1.93
1.45
55-63-0
Nitroglycerin
0.46
0.031
0.023
75-52-5
Nitromethane
50
3.333
2.5
108-03-2
1-Nitropropane
90
6
4.5
99-08-1
m (or) 3-Nitrotoluene
11
0.733
0.55
88-72-2
o (or) 2-Nitrotoluene
11
0.733
0.55
99-99-0
p (or) 4-Nitrotoluene
11
0.733
0.55
76-06-2
Nitrotrichloromethane, see Chloropicrin
10024-97-2
Nitrous oxide
90
6
4.5
111-84-2
Nonane
1050
70
52.5
2234-13-1
Octachloronaphthalene
0.1
0.007
0.005
111-65-9
Octane
1400
93.3
70
NA
Oil mist, mineral
5
0.333
0.25
20816-12-0
Osmium tetroxide as Os
0.002
0.0001
0.0001
144-62-7
Oxalic acid
1
0.067
0.05
7783-41-7
Oxygen difluoride (CL)
0.11
0.0007
0.0005
8002-74-2
Paraffin wax fume
2
0.133
0.1
4685-14-7
Paraquat
0.1
0.007
0.007
NA
Paraquat, all Compounds
0.1
0.007
0.005
56-38-2
Parathion
0.1
0.007
0.005
19624-22-7
Pentaborane
0.01
0.001
0.0005
1321-64-8
Pentachloronaphthalene
0.5
0.033
0.025
82-68-8
Pentachloronitrobenzene
0.5
0.0333
0.025
87-86-5
Pentachlorophenol
0.5
0.033
0.025
109-66-0
Pentane
1770
118
88.5
107-87-9
2-Pentanone, see Methyl propyl ketone
594-42-3
Perchloromethyl mercaptan
0.8
0.053
0.04
7616-94-6
Perchloryl Fluoride
13
0.867
0.65
93763-70-3
Perlite
10
0.667
0.5
532-27-4
Phenacyl chloride, see
							 a-Chloroacetophenone
108-95-2
Phenol
19
1.27
0.95
92-84-2
Phenothiazine
5
0.333
0.25
108-45-2
m-Phenylenediamine
0.1
0.0067
0.005
106-50-3
p-Phenylenediamine
0.1
0.007
0.005
101-84-8
Phenyl ether, vapor
7
0.467
0.035
122-60-1
Phenyl glycidyl ether (PGE)
6
0.4
0.3
108-98-5
Phenyl mercaptan
2
0.133
0.1
638-21-1
Phenylphosphine (CL)
0.25
0.0017
0.00125
298-02-2
Phorate
0.05
0.003
0.001
7786-34-7
Phosdrin, see Mevinphos
75-44-5
Phosgene
0.4
0.027
0.02
7803-51-2
Phosphine
0.4
0.027
0.02
7664-38-2
Phosphoric acid
1
0.067
0.05
7723-14-0
Phosphorus
0.1
0.007
0.005
10025-87-3
Phosphorus oxychloride
0.6
0.04
0.030
10026-13-8
Phosphorus penta-chloride
1
0.067
0.05
1313-80-3
Phosphorus penta-sulfide
1
0.067
0.05
1314-56-3
Phosphorus pentoxide (ID)
-
0.067
0.05
7719-12-2
Phosphorus trichloride
1.5
0.1
0.075
85-44-9
Phthalic anhydride
6
0.4
0.3
626-17-5
m-Phthalodinitrile
5
0.333
0.25
1918-02-1
Picloram
10
0.667
0.5
88-89-1
Picric acid
0.1
0.006
0.005
83-26-1
Pindone
0.1
0.007
0.005
142-64-3
Piperazine dihydro-chloride
5
0.333
0.25
83-26-1
2-Pivaloyl-l,3-indandione, see Pindone
7440-06-4
Platinum - Including:
7440-06-4
Metal
1
0.067
0.05
NA
Soluble salts, as Pt
0.002
0.0001
0.0001
65997-15-1
Portland cement
10
0.667
0.5
1310-58-3
Potassium hydroxide
2
0.133
0.1
107-19-7
Propargyl alcohol
2.3
0.153
0.115
123-38-6
Propionaldehyde (LA)
0.43
0.0287
0.0215
79-09-4
Propionic acid
30
2
1.5
114-26-1
Propoxur (Baygon)
0.5
0.033
0.025
109-60-4
n-Propyl acetate
840
56
42
71-23-8
Propyl alcohol
500
33.3
25
78-87-5
Propylene dichloride
347
23.133
17.35
6423-43-4
Propylene glycol dinitrate
0.34
0.023
0.017
107-98-2
Propylene glycol monomethyl ether
360
24
18
75-56-9
Propylene oxide
48
3.2
2.4
627-13-4
n-Propyl nitrate
105
7
5.25
8003-34-7
Pyrethrum
5
0.333
0.25
110-86-1
Pyridine
15
1
0.75
120-80-9
Pyrocatechol, see Catechol
106-51-4
Quinone
0.4
0.027
0.02
121-84-4
RDX, see Cyclonite
NA
Refractory Ceramic Fibers (see entry for specific
							 content of emissions, ex: silica)
108-46-3
Resorcinol
45
3
2.25
7440-16-6
Rhodium - Including:
7440-16-6
Metal
1
0.067
0.05
NA
Insoluble compounds, as Rh
1
0.067
0.05
NA
Soluble compounds, as Rh
0.01
0.001
0.0005
299-84-3
Ronnel
10
0.667
0.5
83-79-4
Rotenone (commercial)
5
0.333
0.25
8030-30-6
Rubber solvent (Naphtha)
1590
106
79.5
14167-18-1
Salcoine as CO
0.1
0.007
0.005
7782-49-2
Selenium
0.2
0.013
0.010
NA
Selenium and compounds as Se
0.2
0.013
0.01
136-78-7
Sesone
10
0.667
0.5
7803-62-5
Silane, see silicon
							 tectrahydride
NA
Silica - amorphous - Including:
61790-53-2
Diatomaceous earth (uncalcined)
10
0.667
0.5
112926-00-8
Precipitated silica
10
0.667
0.5
112926-00-8
Silica gel
10
0.667
0.5
NA
Silica, crystalline - Including:
14464-46-1
Cristobalite
0.05
0.0033
0.0025
14808-60-7
quartz
0.1
0.0067
0.005
60676-86-0
silica, fused
0.1
0.0067
0.005
15468-32-3
tridymite
0.05
0.0033
0.0025
1317-95-9
Tripoli
0.1
0.0067
0.005
7440-21-3
Silicon
10
0.667
0.5
409-21-2
Silicon carbide
10
0.667
0.5
7803-62-5
Silicon tetrahydride
7
0.467
0.35
7440-22-4
Silver - Including
7440-22-4
Metal
0.1
0.007
0.005
7440-22-4
Soluble compounds, as Ag
0.01
0.001
0.005
26628-22-8
Sodium azide (CL)
0.3
0.002
0.0015
7631-90-5
Sodium bisulfite
5
0.333
0.25
136-78-7
Sodium 2,4-dichloro-phenoxyethyl sulfate, see
							 Sesone
62-74-8
Sodium fluoroacetate
0.05
0.003
0.0025
1310-73-2
Sodium hydroxide
2
0.133
0.1
7681-57-4
Sodium metabisulfite
5
0.333
0.25
NA
Stearates (not including toxic
							 metals)
10
0.667
0.5
7803-52-3
Stibine
0.5
0.033
0.025
8052-41-3
Stoddard solvent
525
35
26.25
57-24-9
Strychnine
0.15
0.01
0.0075
60-41-3
Strychnine sulfate as strichnine
0.15
0.01
0.01
100-42-5
Styrene monomer (ID)
-
6.67
1
1395-21-7
Subtilisins (Proteolytic enzymes as 100% pure
							 crystalline enzyme)
0.00006
4.0E-07
3.0E-7
3689-24-5
Sulfotep
0.2
0.013
0.01
7664-93-9
Sulfuric acid
1
0.067
0.05
10025-67-9
Sulfur monochloride (CL)
6
0.04
0.03
5714-22-7
Sulfur pentafluoride (CL)
0.1
0.0007
0.0005
7783-60-0
Sulfur tetrafluoride (CL)
0.4
0.0027
0.002
2699-79-8
Sulfuryl fluoride
20
1.33
1
35400-43-2
Sulprofos
1
0.067
0.05
8065-48-3
Systox, see Demeton
93-76-5
2,4,5-Trichlorophen-oxyacetic acid
							 (2,4,5,-T)
10
0.667
0.05
7440-25-7
Tantalum
5
0.333
0.25
3689-24-5
TEDP, see Sulfotep
13494-80-9
Tellurium & Compounds as Te
0.1
0.007
0.005
7783-80-4
Tellurium hexafluoride as Te
0.2
0.013
0.01
3383-96-8
Temephos
10
0.667
0.5
107-49-3
TEPP (Tetraethyl-pyrophosphate)
0.05
0.003
0.0025
26140-60-3
Terphenyls
4.7
0.313
0.235
1335-88-2
Tetrachloronaphthalene
2
0.133
0.10
78-00-2
Tetraethyl Lead
0.1
0.007
0.005
597-64-8
Tetraethyltin as organic tin
0.1
0.007
0.005
109-99-9
Tetrahydrofuran
590
39.3
29.5
75-74-1
Tetramethyl lead, as Pb
0.15
0.01
0.0075
3333-52-6
Tetramethyl succinonitrile
3
0.2
0.15
509-14-8
Tetranitromethane
8
0.533
0.4
7722-88-5
Tetrasodium pyrophosphate
5
0.333
0.25
479-45-8
Tetryl
1.5
0.1
0.075
7440-28-0
Thallium, soluble Compounds, as Tl
0.1
0.007
0.005
96-69-5
4,4-Thiobis (6 tert, butyl-m-cresol)
10
0.667
0.5
68-11-1
Thioglycolic acid
4
0.267
0.2
7719-09-7
Thionyl chloride (CL)
4.9
0.0327
0.245
137-26-8
Thiram
5
0.333
0.25
7440-31-5 7440-31-5
Tin - Including: Metal
2
0.133
0.1
NA NA
Oxide & inorganic compounds, except SnH4, as Sn
							 Organic compounds as Sn
2 0.1
0.133 0.007
0.1 0.005
108-88-3
Toluene (toluol)
375
25
18.75
584-84-9
Toluene-2,4-di-isocyanate (TDI)
0.04
0.003
0.002
10-41-54
p-Toluenesulfonic acid (ID)
n/a
0.067
0.05
126-73-8
Tributyl phosphate
2.2
0.147
0.11
76-03-9
Trichloroacetic acid
7
0.467
0.35
120-82-1
1,2,4-Trichlorobenzene (CL)
37
2.47
1.85
79-01-6
Trichloroethylene
269
17.93
13.45
1321-65-9
T richloronaphthalene
5
0.333
0.25
76-06-2
Trichloronitromethane, See
							 Chloropicrin
95-95-4
2,4,5-Trichlorophenol (MA)
-
-
0.0016
96-18-4
l,2,3-Trichloropropane
60
4
3
121-44-8
Triethylamine
4.1
0.27
0.2
1582-09-8
Trifluralin (PL 3)
-
7.7
1.15
552-30-7
Trimellitic anhydride
0.04
0.003
0.002
75-50-3
Trimethylamine
12
0.8
0.6
25551-13-7
Trimethyl benzene (mixed and individual
							 isomers)
123
8.2
6.15
540-84-1
2,2,4-T rimethyl-pentane
350
23.3
17.5
121-45-9
Trimethyl phosphite
10
0.667
0.5
479-45-8
2,4,6-Trinitrophenyl-methylnitramine, see
							 Tetryl
78-30-8
Triorthocresyl phosphate
0.1
0.007
0.005
603-34-9
Triphenyl amine
5
0.333
0.25
115-86-6
Triphenyl phosphate
3
0.2
0.15
7440-33-7
Tungsten -
							 Including:
NA
Insoluble compounds
5
0.333
0.25
NA
Soluble compounds
1
0.067
0.05
8006-64-2
Turpentine
560
37.3
28
7440-61-1
Uranium (natural) Soluble & insoluble compounds
							 as U
0.2
0.013
0.01
110-62-3
n-Valeraldehyde
175
11.7
8.75
1314-62-1
Vanadium, as V2O5 Respirable Dust &
							 fume
0.05
0.003
0.0025
108-05-4
Vinyl acetate
35
2.3
1.75
25013-15-4
Vinyl toluene
240
16
12
8032-32-4
VM & P Naphtha
1370
91.3
68.5
81-81-2
Warfarin
0.1
0.007
0.005
1330-20-7
Xylene (o-, m-, p-isomers)
435
29
21.75
1477-55-0
m-Xylene a, a-diamine (CL)
0.1
0.0007
0.0005
1300-73-8
Xylidine
2.5
1.67
0.125
7440-65-5
Yttrium (Metal and compounds as Y)
1
0.067
0.05
7440-66-6
Zinc metal (ID)
-
0.667
0.5
7646-85-7
Zinc chloride fume
1
0.067
0.05
1314-13-2
Zinc oxide fume
5
0.333
0.05
1314-13-2
Zinc oxide dust
10
0.667
0.5
7440-67-7
Zirconium compounds as Zr
5
0.333
0.25
Note: ACGIH
: American Conference of Government
				Industrial Hygienists;
CL
: Derived from ACGIH ceiling Limit UF =
				10;
ID
. Idaho Division of Environmental Quality. Not OEL based;
LA
: From LA Dept. of Environmental Quality. Not OEL based eight
				(8) hour TWA;
MA
: From MA Dept. of Environmental Protection, Div.
				of Air Quality Control. Not OEL based, annual averaging time, no UF;
MI
. From MI Dept. of Natural Resources, Air Quality Div. Based on
				toxicological data, annual averaging time, no UF.;
NY
: From New
				York Dept. of Conservation, Div. of Air Quality. Not OEL based, annual
				averaging. time no UF;
OEL
: Reference Occupational Exposure Level;
PL
: From Phil. Dept. of Air Management Services. Not OEL based,
				annual. averaging time no UF;
PL
				1
: From Phil. Dept. of Air Management
				Services. Unspecified OEL based, annual averaging time, UF=10;
PL
				2
: From Phil. Dept. of Air Management
				Services. Not OEL based annual averaging. time, UF=10;
PL
				3
: From Phil. Dept. of Air Management
				Services. Not OEL based, annual averaging. time, UF=1000.;
TWA
:
				Time Weighted Average;
UF
: Uncertainty Factor;
WA
:
				From Washington Dept. of Ecology, Air Programs. Acceptable Source Impact Level
				based. (3-28-23)