128 Neb. Admin. Code, ch. 27, 129 app II - HAZARDOUS AIR POLLUTANTS SORTED BY CAS NUMBER

Current through May 17, 2022

CAS Number

Chemical Name

VOC

1146

Nickel refinery dust [8]

No

14333

Sodium cyanide [8]

No

50000

Formaldehyde

Yes

50328

Benzo(a)pyrene

Yes

51285

2,4- Dinitrophenol

Yes

51796

Ethyl carbamate (Urethane)

No

53703

Dibenz(a, h)anthracene

Yes

53963

2-Acetylaminofluorine [8]

Yes

56235

Carbon tetrachloride

Yes

56382

Parathion

Yes

56553

Benz(a)anthracene

Yes

57147

1,1- Dimethyl hydrazine

Yes

57578

beta- Propiolactone

Yes

57749

Chlordane

Yes

57976

7,12- Dimethylbenz(a)anthracene

Yes

58899

Lindane (all isomers)

No

59892

N- Nitrosomorpholine

Yes

60117

4- Dimethyl aminoazobenzene

Yes

60344

Methyl hydrazine

Yes

60355

Acetamide

Yes

62384

Phenyl mercuric acetate [8]

No

62533

Aniline

Yes

62737

Dichlorvos

Yes

62759

N- Nitrosodimethylamine

Yes

63252

Carbaryl [8]

No

64675

Diethyl sulfate

Yes

67561

Methanol

Yes

67663

Chloroform

Yes

67721

Hexachloroethane

No

68122

Dimethyl formamide

Yes

71432

Benzene

Yes

71556

Methyl chloroform (1,1,1-Trichlorethane)

No

72435

Methoxychlor

Yes

74839

Methyl bromide (Bromomethane)

Yes

74873

Methyl chloride (Chloromethane)

Yes

74884

Methyl iodide (Iodomethane)

Yes

74908

Hydrogen cyanide

No

75003

Ethyl chloride (Chloroethane)

Yes

75014

Vinyl chloride

Yes

75058

Acetonitrile

Yes

75070

Acetaldehyde

Yes

75092

Methylene chloride (Dichloromethane)

No

75150

Carbon disulfide

Yes

75218

Ethylene oxide

Yes

75252

Bromoform

Yes

75343

Ethylidene dichloride (1,1-Dichloroethane)

Yes

75354

Vinylidene chloride (1,1-Dichloroethylene)

Yes

75445

Phosgene

Yes

75558

1,2- Propylenimine (2-Methyl aziridine)

Yes

75569

Propylene oxide

Yes

75741

Tetramethyl lead [8]

No

76448

Heptachlor

Yes

77474

Hexachlorocyclopentadiene

Yes

77781

Dimethyl sulfate

Yes

78002

Tetraethyl lead [8]

No

78591

Isophorone

Yes

78875

Propylene dichloride (1,2-Dichloropropane)

Yes

79005

1,1,2- Trichloroethane

Yes

79016

Trichloroethylene

Yes

79061

Acrylamide

Yes

79107

Acrylic acid

Yes

79118

Chloroacetic acid

Yes

79345

1,1,2,2- Tetrachloroethane

Yes

79447

Dimethyl carbamoyl chloride

Yes

79469

2- Nitropropane

Yes

80626

Methyl methacrylate

Yes

82688

Pentachloronitrobenzene (Quintobenzene)

Yes

84742

Dibutylphthalate

Yes

85449

Phthalic anhydride

No

87683

Hexachlorobutadiene

Yes

87865

Pentachlorophenol

Yes

88062

2,4,6- Trichlorophenol

Yes

90040

o-Anisidine

Yes

91203

Naphthalene

Yes

91225

Quinoline [8]

Yes

91941

3,3'- Dichlorobenzidene [8]

Yes

92524

Biphenyl [8]

Yes

92671

4-Aminobiphenyl [8]

Yes

92875

Benzidine [8]

Yes

92933

4- Nitrobiphenyl [8]

Yes

94757

2.4 - D, salts, esters (2,4-Dichlorophenoxy acetic acid)

Yes

95476

o-Xylenes [8]

Yes

95487

o- Cresol [8]

Yes

95534

o- Toluidine

Yes

95807

2,4- Toluene diamine

Yes

95954

2,4,5- Trichlorophenol

Yes

96093

Styrene oxide

Yes

96128

1,2- Dibromo-3-chloropropane

Yes

96457

Ethylene thiourea

No

98077

Benzotrichloride

Yes

98828

Cumene

Yes

98862

Acetophenone

Yes

98953

Nitrobenzene

Yes

100027

4- Nitrophenol

Yes

100414

Ethyl benzene

Yes

100425

Styrene

Yes

100447

Benzyl chloride

Yes

101144

4,4- Methylene bis (2-chloroaniline) [8]

No

101688

Methylene diphenyl diisocyanate (MDI) [8]

No

101779

4,4'- Methylenedianiline

No

106423

p-Xylenes [8]

Yes

106445

p- Cresol [8]

Yes

106467

1,4- Dichlorobenzene(p)

Yes

106503

p- Phenylenediamine

Yes

106514

Quinone

Yes

106887

1,2- Epoxybutane

Yes

106898

Epichlorohydrin (1 -Chloro-2,3-epoxypropane)

Yes

106934

Ethylene dibromide (Dibromoethane)

Yes

106990

1,3- Butadiene

Yes

107028

Acrolein

Yes

107051

Allyl chloride

Yes

107062

Ethylene dichloride (1,2-Dichloroethane)

Yes

107131

Acrylonitrile

Yes

107211

Ethylene glycol

Yes

107302

Chloromethyl methyl ether

Yes

108054

Vinyl acetate

Yes

108101

Methyl isobutyl ketone

Yes

108316

Maleic anhydride

No

108383

m-Xylenes [8]

Yes

108394

m- Cresol [8]

Yes

108864

2- Methoxy ethanol [8]

No

108883

Toluene

Yes

108907

Chlorobenzene

Yes

108952

Phenol

Yes

110543

Hexane

Yes

110805

2- Ethoxy ethanol [8]

No

111422

Diethanolamine

Yes

111444

Dichloroethyl ether (Bis(2-chloroethyl)ether)

Yes

114261

Propoxur(Baygon)

No

117817

Bis(2-ethylhexyl)phthalate(DEHP)

Yes

118741

Hexachlorobenzene

No

119904

3,3'- Dimethoxybenzidine [8]

Yes

119937

3,3' Dimethyl benzidine [8]

Yes

120809

Catechol

Yes

120821

1,2,4- Trichlorobenzene

Yes

121142

2,4- Dinitrotoluene

Yes

121448

Triethylamine

Yes

121697

N,N- Dimethylaniline

Yes

122667

1,2- Diphenylhydrazine

Yes

123319

Hydroquinone

Yes

123386

Propionaldehyde

Yes

123911

1,4- Dioxane (1,4-Diethyleneoxide)

Yes

126998

Chloroprene

Yes

127184

Tetrachloroethylene (Perchloroethylene)

No

130618

Cadmium oxide [8]

No

131113

Dimethyl phthalate

Yes

132649

Dibenzofurans [8]

No

133062

Captan

No

133904

Chloramben

No

140885

Ethyl acrylate

Yes

151508

Potassium cyanide [8]

No

151564

Ethyleneimine (Aziridine)

Yes

156627

Calcium cyanamide

No

189559

1,2:7,8- Dibenzoppyrene

Yes

193395

Ideno(1,2,3-cd)pyrene

Yes

205992

Benzo(b)fluoranthene

Yes

218019

Chrysene

Yes

225514

Benz(c)aridine

Yes

302012

Hydrazine

No

334883

Diazomethane

Yes

463581

Carbonyl sulfide

Yes

510156

Chlorobenzilate [8]

Yes

532274

2- Chloroacetophenone

Yes

534521

4,6- Dinitro-o-cresol, and salts

No

540841

2,2,4- Trimethylpentane

Yes

542756

1,3- Dichloropropene

Yes

542881

Bis(chloromethyl)ether

Yes

584849

2,4- Toluene diisocyanate

Yes

593602

Vinyl bromide (bromoethene)

Yes

624839

Methyl isocyanate

Yes

680319

Hexamethylphosphoramide

No

684935

N- Nitroso-N-methylurea

Yes

748794

Mercuric chloride [8]

No

822060

Hexamethylene,-1,6-diisocyanate

No

1120714

1,3- Propane sultone

No

1308389

Trivalent chromium compounds (chromium oxide)

No

1309644

Antimony trioxide [8]

No

1319773

Cresols/Cresylic acid (isomers and mixture) [8]

Yes

1330207

Xylenes (isomers and mixture) [8]

Yes

1332214

Asbestos

No

1336363

Polychlorinated biphenyls (Aroclors, PCBs)

Yes

1345046

Antimony trisulfide [8]

No

1582098

Trifluralin

No

1634044

Methyl tert butyl ether

Yes

1746016

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

No

3547044

p,p'- Dichlorodiphenyl ethane (DDE) [8]

Yes

7439921

Lead and compounds (except those specifically listed) [5]

No

7439965

Manganese and compounds (except those specifically listed) [5] [8]

No

7439976

Elemental mercury [8]

No

7440020

Nickel compounds (except those specifically listed) [5] [8]

No

7440360

Antimony compounds (except those specifically listed) [5] [8]

No

7440382

Arsenic and inorganic arsenic compounds [8]

No

7440417

Beryllium compounds (except Beryllium salts) [5] [8]

No

7440439

Cadmium compounds (except those specifically listed) [5] [8]

No

7440473

Chromium compounds (exept Hexavalent and Trivalent) [5] [8]

No

7440484

Cobalt compounds (except those specifically listed) [5] [8]

No

7488564

Selenium sulfide (mono and di) [8]

No

7550450

Titanium tetrachloride

No

7647010

Hydrochloric acid

No

7664393

Hydrogen fluoride (Hydrofluoric acid)

No

7723140

Phosphorous

No

7782492

Selenium and compounds (except those specifically listed) [5] [8]

No

7782505

Chlorine

No

7783075

Hydrogen selenide [8]

No

7783702

Antimony pentafluoride [8]

No

7784421

Arsine [8]

No

7803512

Phosphine

No

8001352

Toxaphene (chlorinated camphene)

No

10025737

Chromic chloride

No

10045940

Mercuric nitrate [8]

No

10102188

Sodium selenite [8]

No

10210681

Cobalt carbonyl [8]

No

12035722

Nickel subsulfide [8]

No

12108133

Methylcyclopentadienyl manganese

No

13410010

Sodium selenate [8]

No

13463393

Nickel carbonyl [8]

No

14464461

Silica (crystalline) [8]

No

14807966

Talc (containing asbestos form fibers) [8]

No

18540299

Hexavalent chromium and compounds [8]

No

28300745

Antimony potassium tartrate [8]

No

62207765

Fluomine

No

65997173

Glass wool [8]

No

66733219

Erionite [8]

No

99999918

Radionuclides (including radon)[4]

No

142844006

Ceramic fibers [8]

No

-

Beryllium salts [8]

No

-

Cyanide compounds (except those specifically listed) [1] [5] [8]

No

-

Coke oven emissions

No

-

Glycol ethers (except those specifically listed) [2] [5] [8]

No

-

Mineral fiber compounds (except those specifically listed) [3] [5] [8]

No

-

Mercury compounds (except those specifically listed) [5] [8]

No

-

Rock wool [8]

No

-

Slag wool [8]

No

-

Polycyclic organic matter-POM (except those specifically listed) [5] [8]

Yes

-

Dioxins & Furans (TCDD equivalent) [6]

No

[1] XCN where X=H or any other group where a formal dissociation may occur

[2] Include mono-and di-ethers of ethylene glycol, diethylene glycol, and triethylene glycol R-(OCH2CH2 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-(OCH2CH)n-OH. Polymers are excluded from the glycol category. Ethylene glycol monobutyl ether is excluded from this category.

[3] Includes glass microfibers, glass wool fibers, rock wool fibers and slag wool fibers, each characterize "respirable" (fiber diameter < 3.5 micrometers) and possessing an aspect ratio (fiber length divided by fiber diameter) > 3.

[4] A type of atom which spontaneously undergoes radioactive decay.

[5] For this chemical group, specific copounds or subgroups are named specifically in this table. For the remainder of the chemicals in the chemical group, a single de minimis value is listed, and this value applies to the sum of the compounds in the group which are not named specifically.

[6] The "toxic equivalen factor" method in EPA/625/ 3-89 -016, [U.S. EPA (1989) Interim procedures for estimating risk associated with exposure to mixtures] should be used for PCDD/PCDF mixtures. A different de minimis level will be determined for each mixture depending on the equivalency factors which are compound specific.

[7] The EPA relies on Subparts B and I, and Appendix E of 40 CFR Part 61 and assigns a de minimis level based on an effective dose equivalent of 0.3 millirem per year for a 7 year exposure period that would result in a cancer risk of 1 per million. The individual radionuclides subject to de minimis levels used for section 112(g) are also contained in 40 CFR Part 61.

[8] Emissions from all substances in each set below should be aggregated for the purpose of determining major source status as described in Chaper 2, section 001:

Cresols/Cresylic acid (isomers and mixture); m-Cresol; o-Cresol; p-Cresol

Xylenes (isomers and mixture); m-Xylenes; o-Xylenes, p-Xylenes

Antimony compounds; Antimony pentafluoride; Antimony postassium tartrate; Antimony trioxide; Antimony trisulfide

Arsenic and inorganic arsenic compounds; Arsine

Beryllium compounds (except Beryllium salts); Beryllium salts

Cadmium compounds; Cadmium oxide

Chromium compounds (except Hexavalent and Trivalent); Hexavalent chromium compounds; Trivalent chromium compounds (chromium oxide)

Cobalt compounds; Cobalt carbonyl

Cyanide compounds; Potassium cyanide; Sodium cyanide

Glycol ethers; 2-Ethoxy ethanol; 2-Methoxy ethanol

Lead and compounds; Tetraethyl lead; Tetramethyl lead

Mercury compounds; Elemental mercury; Mercuric chloride; Mercuric nitrate; Phenyl mercuric acetate

Mineral fiber compounds; Ceramic fibers; Erionite; Glass wool; Rock Wool; Silica (crystalline); Slag wool; Talc (containing asbestos form fibers);

Nickel compounds; Nickel carbonyl; Nickel refinery dust; Nickel subsulfide

Polycyclic organic matter (POM); 2-Acetylaminofluorene; 4-Aminobiphenyl; Benzidine; Biphenyl; Carbaryl; Chlorobenzilate; Dibenzofurans; 3,3-Dichlorobenzidine; p,p'-Dichlorodiphenyl ethane (DDE); 3,3-Dimethoxybenzidine; 3,3'-Dimethylbenzidine; 4,4-Methylene bis(2 Chloroaniline); Methylene Diphenyl Diisocyanate; 4-Nitrobiphenyl; Quinoline; 2,3,7,8-Tetrachlorodibenzo-p-dioxin

Selenium and compounds; Hydrogen selenide; Selenium sulfide (mono and di); Sodium selenate; Sodium selenite

Reporting Level (Lbs/Year)

80

100

1,000

20

1,000

800

20

10

1,000

100

20

16

100

20

0

20

1,000

1,000

60

1,000

20

1,000

200

2

2,000

1,000

2,000

900

2,000

1,000

1,000

2,000

2,000

2,000

2,000

1,000

0

2,000

200

1,000

2,000

2,000

1,000

100

2,000

1,000

400

100

6

2,000

20

20

100

100

20

2,000

1,000

1,000

2,000

20

600

100

300

20

1,000

2,000

300

2,000

2,000

900

700

2,000

1,000

2,000

12

200

2,000

1,000

0.6

1,000

2,000

2,000

1,000

1,000

20

1,000

1,000

20

600

12

2,000

1,000

1,000

2,000

2,000

1,000

100

200

100

1,000

2,000

1,000

1,000

2,000

2,000

1,000

1,000

100

70

40

1,000

1,000

300

2,000

100

1,000

2,000

1,000

2,000

1,000

2,000

2,000

2,000

100

2,000

2,000

2,000

60

2,000

2,000

20

100

16

2,000

2,000

20

2,000

1,000

90

1,000

2,000

2,000

1,000

2,000

20

2,000

2,000

2,000

1,000

1,000

100

6

2,000

20

20

20

20

20

8

1,000

2,000

400

60

100

2,000

1,000

0.6

100

600

100

20

0

20

20

30

2,000

1,000

1,000

2,000

0

18

100

2,000

2,000

0.0012

20

20

800

20

1,000

2,000

10

16

20

2,000

100

100

100

2,000

100

100

100

100

100

100

10

2,000

20

100

0

100

100

40

100

100

0

0

0

4

1,000

100

0

0

[7]

0

0.04

2,000

30

0

0

20

0

0

20

0

Notes

128 Neb. Admin. Code, ch. 27, 129 app II

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