Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 232 - TOXIC AIR CONTAMINANTS
Subpart E - LISTING AND DELISTING
Appendix A - List of Toxic Air Contaminants

Universal Citation: 35 IL Admin Code ยง A
Current through Register Vol. 48, No. 38, September 20, 2024

Chemical Name

CAS Number

Acetaldehyde

75-07-0*

Acetamide

60-35-5*

Acetonitrile

75-05-8*

Acetophenone

98-86-2*

2-Acetylaminofluorene

53-96-3*

Acrolein

107-02-8*

Acrylamide

79-06-1*

Acrylic acid

79-10-7*

Acrylonitrile

107-13-1*

Aldrin

309-00-2**

Allyl chloride

107-05-1*

2-Aminoanthraquinone

117-79-3

4-Aminoazobenzene

60-09-3

o-Aminoazotoluene

93-56-3

4-Aminobiphenyl

92-67-1*

1-Amino-2-methylanthraquinone

82-28-0

Amitrole

61-82-5

Aniline

62-53-3*

o-Anisidine

90-04-0*

o-Anisidine hydrochloride

134-29-2

Antimony

7440-36-0

Arsenic

7440-38-2**

Asbestos

1332-21-4*

Azobenzene

103-33-3

Benzo(a)anthracene

56-55-3**

Benzene

71-43-2*

Benzidine

92-87-5*

Benzo(a)pyrene

50-32-8**

Benzo(b)fluoranthene [3,4-Benzofluoranthene]

205-99-2**

Benzo(j)fluoranthene

205-82-3

Benzo(k)fluoranthene [11,12-Benzofluoranthene]

207-08-9**

1,12-Benzoperylene

191-24-2

Benzotrichloride

98-07-7*

Benzyl chloride

100-44-7*

Benzyl violet

1694-09-3

Beryllium

7440-41-7

Beryllium oxide

1304-56-9*

Biphenyl

92-52-4*

Bis(chloromethyl)ether

542-88-1*

Boron trifluoride

7637-07-2

Bromoform

75-25-2*

4,Bromophenyl phenyl ether

101-55-3**

1,3-Butadiene

106-99-0*

Butyl benzyl phthalate

85-68-7

beta-Butyrolacetone

3068-88-0

C.I. Basic Red 9 monohydrochloride

569-61-9

Cadmium

7440-43-9**

Cadmium oxide

1306-19-0*

Calcium cyanamide

156-62-7*

Caprolactam

105-60-2

Captan

133-06-2*

Carbaryl

63-25-2*

Carbofuran

1563-66-2

Carbon black

1333-86-4

Carbon disulfide

75-15-0*

Carbon tetrachloride

56-23-5++

Carbonyl sulfide

463-58-1*

Carbosulfan

55285-14-8

Catechol

120-80-9*

Chloramben

133-90-4*

Chlordane

57-74-9++

Chlorinated dibenzodioxins

--

Chlorinated dibenzofurans

--

Chlorendic acid

115-28-6

Alpha-Chlorinated toluenes

--

Chlorinated paraffins [C12, 60% chlorine]

108171-26-2

Chlorine

7782-50-5*

Chloroacetic acid

79-11-8*

2-Chloroacetophenone

532-27-4*

Chlorobenzene

108-90-7*

Chlorobenzilate

510-15-6*

Chloroform

67-66-3*

Chloromethyl methyl ether

107-30-2*

3,4-Chloro-2-methylpropene

563-47-3

4-Chloro-o-phenylenediamine

95-83-0

p-Chloro-o-toluidine

95-69-2

4-Chlorophenyl phenyl ether

7005-72-3**

Chloroprene

126-99-8*

Chromium

7440-47-3**

Chromium (VI)

18540-29-9++

Chrysene

218-01-9**

Coal tar (pitch) volatiles

65996-93-2

Cobalt

7440-48-4**

Coke Oven Emissions

--++

Copper

7440-50-8**

p-Cresidine

120-71-8

Creosote (Coal)

8001-58-9

Cresol (mixed isomers) [Cresols/Cresylic acid isomers and mixture

1319-77-3*

o-Cresol

95-48-7*

m-Cresol

108-39-4*

p-Cresol

106-44-5*

Cumene

98-82-8*

Cyanazine

21725-46-2

Cyclohexanone

108-94-1

DDD

72-54-8

DDE

3547-04-4*

4,4'-DDE

72-55-9**

DDT

50-29-3**

Di-n-octyl phthalate

117-84-0**

2,4-Diaminoanisole

615-05-4

2,4-Diaminoanisole sulfate

39156-41-7

4,4'-Diaminodiphenyl ether

101-80-4

2,4-Diaminotoluene

95-80-7*

Diazomethane

334-88-3*

Dibenzo(a,h)acridine

226-36-8

Dibenzo(a,j)acridine

224-42-0

Dibenzo(a,h)anthracene [1,2:5.6 -Dibenzanthracene]

53-70-3**

Dibenzo(a,e)pyrene

192-65-4

Dibenzo(a,h)pyrene

189-64-0

Dibenzo(a,i)pyrene

189-55-9

Dibenzo(a,l)pyrene

191-30-0

Dibenzofurans

132-64-9*

Dibutyl phthalate

84-74-2++

1,2-Dibromo-3-chloropropane

96-12-8*

1,2-Dibromoethane [Ethylene dibromide]

106-93-4*

1,4-Dichlorobenzene(p-)

106-46-7*

3,3'-Dichlorobenzidine

91-94-1*

3,3'-Dichlorobenzidine dihydrochloride

612-83-9

Dichloroethyl ether [Bis(2-chloroethyl)ether]

111-44-4*

2,4-Dichlorophenoxyacetic acid [2,4-D,salts and esters]

94-75-7*

1,2-Dichloropropane [Propylene dichloride]

78-87-5*

1,3-Dichloropropylene [1,3-Dichloropropene]

542-75-6*

Dichlorovos

62-73-7*

Dieldrin

60-57-1**

Diepoxybutane

1464-53-5

Diethanolamine

111-42-2*

N,N-Diethyl aniline [N,N-Dimethylaniline]

121-69-7*

1,2-Diethylhydrazine

1615-80-1

Di(2-ethylhexyl) Phthalate [Bis(2-ethylhexyl) phthalate (DEHPI)

117-81-7++

Diethyl sulfate

64-67-5*

Diglycidyl resorcinol ether

101-90-6

3,3'-Dimethoxybenzidine [Dianisidine]

119-90-4*

Dimethyl acetamide

127-19-5

Dimethyl phthalate

131-11-3*

4-Dimethylaminoazobenzene [Dimethyl aminoazo- benzene]

60-11-7*

3,3'-Dimethylbenzidine [o-Tolidine]

119-93-7*

Dimethylcarbamoyl chloride

79-44-7*

N,N-Dimethyl formamide

68-12-2*

1,1-Dimethylhydrazine

57-14-7*

1,2-Dimethylhydrazine

540-73-8

Dimethyl sulfate

77-78-1*

Dinitrocresol [4,6-Dinitro-o-cresol, and salts]

534-52-1*

2,4-Dinitrophenol

51-28-5*

2,4-Dinitrotoluene

121-14-2*

1,4-Dioxane [1,4-Diethyleneoxide]

123-91-1*

1,2-Diphenylhydrazine

122-66-7*

Disulfoton

298-04-4

Endothall

145-73-3

Endrin

72-20-8**

Epichlorohydrin

106-89-8*

1,2-Epoxybutane

106-88-7*

2-Ethoxyethanol

110-80-5

Ethyl acrylate

140-88-5++

Ethyl benzene

100-41-4++

Ethyl chloride [Chloroethane]

75-00-3*

Ethylene dichloride [1,2-Dichloroethane]

107-06-2++

Ethylene glycol

107-21-1*

Ethyleneimine [Aziridine]

151-65-4*

Ethylene oxide

75-21-8*

Ethylene thiourea

96-45-7*

Ethylidene dichloride [1,1-Dichloroethene]

75-34-3*

Etridiazole

2593-15-9

FMC-67825

95465-99-9

Fluorine

7782-41-4

Folpet

133-07-3

Formaldehyde

50-00-0*

Furmecyclox

60568-05-0

Heptachlor

76-44-8++

Heptachlor epoxide

1024-57-3**

Hexachlorobenzene

118-74-1++

Hexachloro-1,3-butadiene [Hexachlorobutadiene]

87-68-3++

Hexachlorocyclopentadiene

77-47-4*

Hexachlorodibenzo-p-dioxin

19408-74-3

Hexachloroethane

67-72-1++

Hexamethylene-1,6-diisocyanate

822-06-0*

Hexamethylphosphoramide

680-31-9*

Hexane

110-54-3*

Hydrazine

302-01-2*

Hydrazine sulfate

10034-93-2

Hydrochloric acid (aerosol)

7647-01-0*

Hydrogen cyanide

74-90-8

Hydrogen fluoride [Hydrofluoric acid]

7664-39-3*

Hydroquinone

123-31-9*

Indeno(1,2,3-cd) pyrene

193-39-5**

Isophorone

78-59-1*

Isophorone diisocyanate

4098-71-9

Lead

7439-92-1**

Lindane-[Hexachlorocyclohexane-alpha]

319-84-6**

Lindane-[Hexachlorocyclohexane-beta]

319-85-7**

Lindane-[Hexachlorocyclohexane-gamma] [Lindane all isomers]

58-89-9++

Lindane-[Hexachlorocyclohexane-mixed isomers]

608-73-1

Linuron

330-55-2

Malathion

121-75-5

Maleic anhydride

108-31-6*

Manganese

7439-96-5**

Mercury

7439-97-6**

Methanol

67-56-1*

Methoxychlor

72-43-5++

2-Methoxyethanol

109-86-4

2-Methoxyethanol acetate

110-49-6

Methyl bromide [Bromomethane]

74-83-9*

Methyl chloride [Chloromethane]

74-87-3++

Methyl chloroform [1,1,1-Trichloroethane]

71-55-6++

Methyl ethyl ketone [2-Butanone]

78-93-3*

Methyl isobutyl ketone [Hexone]

108-10-1*

Methyl isocyanate

624-83-9*

Methyl methacrylate

80-62-6*

Methyl tert-butyl ether

1634-04-4*

5-Methylchrysene

3697-24-3

4,4'-Methylenebis(2-chloroaniline)

101-14-4*

Methylenebis(phenylisocyanate) [Methylene diphenyl diisocyanate (MDI)

101-68-8*

4,4'-Methylenebis(N,N'-dimethyl benzenamine)

101-61-1

Methylene chloride [Dichloromethane]

75-09-2++

4,4'-Methylenedianiline

101-77-9*

4,4'-Methylenedianiline dihydrochloride

13552-44-8

Methyl hydrazine

60-34-4*

Methyl iodide [Iodomethane]

74-88-4*

Methyl mercaptan

74-93-1

N-Methyl-N'-nitro-N-nitrosoguanidine

70-25-7

Metolachlor

51218-45-2

Michler's Ketone

90-94-8

Mirex

2385-85-5**

Monoethanolamine

141-43-5

Naphthalene

91-20-3++

beta-Naphthylamide

91-59-8

Nickel

7440-02-0**

Nitric acid

7697-37-2

Nitrilotriacetic acid

139-13-9

Nitrobenzene

98-95-3*

4-Nitrobiphenyl

92-93-3*

5-Nitro-o-anisidine

99-59-2

2-Nitropropane

79-46-9*

4-Nitrophenol

100-02-7*

N-Nitroso-n-butyl-N-(3-carboxypropyl) amine

38252-74-3

N-Nitroso-n-butyl-N-(4-hydroxybutyl) amine

3817-11-6

N-Nitrosodi-n-butylamine

924-16-3

N-Nitrosodiethanolamine

1116-54-7

N-Nitrosodiethylamine

55-18-5

N-Nitrosodimethylamine

62-75-9*

N-Nitrosodiphenylamine

86-30-6

N-Nitrosodi-n-propylamine

621-64-7

N-Nitroso-N-ethylurea

759-73-9

3-(N-Nitrosomethylamino) propionitrile

60153-49-3

N-Nitrosomethylethylamine

10595-95-6

N-Nitroso-N-methylurea

684-93-5*

N-Nitrosomethylvinylamine

4549-40-0

N-Nitrosomorpholine

59-89-2*

N-Nitrosonornicotine

16543-55-8

N-Nitrosopiperidine

100-75-4

N-Nitrosopyrrolidine

930-55-2

N-Nitrososarcosine

13256-22-9

Nitrofen

11836-75-5

Octachlorostyrene

2908-74-4**

PCDDs (Total polychlorinated dibenzodioxins)

-*

PCDFs (Total polychlorinated dibenzofurans)

-*

PAHs (Total polycyclic aromatic hydrocarbons)

-*

Parathion

56-38-2++

Pentachlorobenzene

608-93-5**

Pentachloronitrobenzene [Quintobenzene]

82-68-8++

Pentachlorophenol

87-86-5++

Peracetic acid

79-21-0

Phenol

108-95-2++

p-Phenylenediamine

106-50-3*

Phenylhydrazine

100-63-0

Phorate

298-02-2

Phosgene

75-44-5*

Phosphine

7803-51-2*

Phosphorus

7723-14-0*

Phosphorus oxychloride

10025-87-3

Phosphorus pentachloride

10026-13-8

Photomirex

39801-14-4**

Phthalic anhydride

85-44-9*

Polybrominated biphenyls

--

Polychlorinated biphenyls [Aroclors]

1336-36-3++

Potassium bromate

7758-01-2

Propane sultone [1,3-Propane sultone]

1120-71-4*

beta-Propiolactone

57-57-8*

Propionaldehyde

123-38-6*

Propoxur [Baygon]

114-26-1*

Propyleneimine [1,2-Propylenimine,(2-Methy aziridine)]

75-55-8*

Propylene oxide

75-56-9*

Pyrene

129-00-0

Quinoline

91-22-5*

Quinone

106-51-4*

Selenium

7782-49-2

Sodium borate

1303-96-4

Styrene

100-42-5*

Styrene oxide

96-09-3*

Sulfalate

95-06-7

Sulfuric acid (aerosol)

7664-93-9

Terbufos

13071-79-9

1,2,3,4-Tetrachlorobenzene

634-66-2**

1,2,4,5-Tetrachlorobenzene

95-94-3**

1,1,2,2-Tetrachloroethane

79-34-5*

Tetrachloroethylene [Perchloroethylene]

127-18-4++

2,3,7,8-Tetrachlorodibenzo-p-dioxin [2,3,7,8-TCDD]

1746-01-6++

4,4'-Thiodianiline

139-65-1

Thiophenol

108-98-5

Thiourea

62-56-6

Thorium dioxide

1314-20-1

Titanium tetrachloride

7550-45-0*

Toluene

108-88-3++

Toluene-2,4-diisocyanate [2,4-Toluene diisocyanate]

584-84-9*

Toluene-2,6-diisocyanate

91-08-7

o-Toluidine

95-53-4*

o-Toluidine hydrochloride

636-21-5

p-Toluidine

106-49-0

Toxaphene

8001-35-2++

1,2,4-Trichlorobenzene

120-82-1*

1,1,2-Trichloroethane

79-00-5*

Trichloroethylene

79-01-6++

2,4,5-Trichlorophenol

95-95-4++

2,4,6-Trichlorophenol

88-06-2++

Triethylamine

121-44-8*

Trifluralin

1582-09-8++

Trimethylbenzene

25551-13-7

1,2,4-Trimethyl benzene

95-63-6

2,4,6-Trinitrotoluene

118-96-7

2,2,4-Trimethylpentane

540-84-1*

Tris(2,3-dibromopropyl) phosphate

126-72-7

Trypan blue

72-57-1

Urethane [Ethyl carbamate]

51-79-6*

Vinyl acetate

108-05-4*

Vinyl bromide

593-60-2*

Vinyl chloride

75-01-4*

Vinylidene chloride [1,1-Dichloroethylene]

75-35-4*

Xylenes (isomers and mixture)

1330-20-7*

o-Xylenes

95-47-6*

m-Xylenes

108-38-3*

p-Xylenes

106-42-3*

Antimony compounds*

Includes any unique chemical substance that contains antimony substance that contains antimony as part of that chemical's infrastructure

-

Arsenic compounds*

Includes any unique chemical substance that contains arsenic as part of that chemical's infrastructure

-

Beryllium compounds*

Includes any unique chemical substance that contains beryllium as part of that chemical's infrastructure

-

Cadmium compounds*

Includes any unique chemical substance that contains cadmium as part of that chemical's infrastructure

-

Chromium compounds*

Includes any unique chemical substance that contains chromium as part of that chemical's infrastructure

-

Cobalt compounds*

Includes any unique chemical substance that contains cobalt as part of that chemical's infrastructure

Cyanide compounds*

x(pos) CN(neg) where X = H(pos) or any other group where a formal dissociation can be made. For example, KCN or Ca(CN)2

-

Glycol ethers*

Includes any unique chemical substance that contains glycol as part of that chemical's infrastructure. Includes mono- and di- ethers of ethylene glycol, diethylene glycol, and triethylene glycol R(OCH2CH2)n-OR' where

n=1, 2, or 3

R = alkyl or aryl groups

R' = R, H, or groups which, when removed, yield glycol ethers with the structure: R(OCH2CH2)n-OH.

Polymers are excluded from the glycol category.

--

Fine mineral fibers*

Includes mineral fiber emissions from facilities manufacturing or processing glass, rock, or slag fibers (or other mineral derived fibers) having the average diameter of 1 micrometer or less.

-

Lead compounds*

Includes any unique chemical substance that contains lead as part of that chemical's infrastructure

--

Manganese compounds*

Includes any unique chemical substance that contains manganese as part of that chemical's infrastructure

- ++

Mercury compounds*

Includes any unique chemical substance that contains mercury as part of that chemical's infrastructure

-

Nickel compounds*

Includes any unique chemical substance that contains nickel as part of that chemical's infrastructure

- ++

Polycyclic Organic Matter (POM)*

Includes organic compounds having more than one benzene ring and a boiling point equal to or greater than 100 degrees Celsius (212 degrees Farenheit).

- ++

Radionuclides (including radon)*

A type of atom which spontaneously undergoes radioactive decay.

-

Selenium Compounds*

Includes any unique chemical substance that contains selenium as part of that chemical's infrastructure.

-

* Indicates presence on HAP List.

**Indicates presence on Great Waters or Great Lakes List.

++=Indicates presence on HAP and Great Waters or Great Lakes Lists.

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