250 R.I. Code R. 250-RICR-120-05-9.17

Current through December 26, 2024
Section 250-RICR-120-05-9.17 - Appendix A: Minimum Quantities (pounds per year) and List of Federal Hazardous Air Pollutants (HAPs)

CHEMICAL NAME

CAS #

Federal

HAP?i

Minimum Quantity

Acetaldehyde

75070

Y

50

Acetamide

60355

Y

5

Acetone

67641

N

20,000

Acetonitrile

75058

Y

200

Acetophenone

98862

Y

900

2-Acetylaminofluorene

53963

Y

0.09

Acrolein

107028

Y

0.07

Acrylamide

79061

Y

0.09

Acrylic acid

79107

Y

3

Acrylonitrile

107131

Y

1

Aldrin

309002

N

0.002

Allyl chloride

107051

Y

3

2-Aminoanthraquinone

117793

N

10

4-Aminobiphenyl

92671

Y

0.02

Ammonia

7664417

N

300

Aniline

62533

Y

3

o-Anisidine

90040

Y

2

Antimony & compoundsa, including antimony trioxide

Y

0.6

Aramite

140578

N

10

Arsenic & compoundsa (inorganic)

Y

0.02

Arsine

7784421

Y

0.2

Asbestos

1332214

Y

400b

Azobenzene

103333

N

3

Barium

7440393

N

2000

Benzene

71432

Y

10

Benzidine

92875

Y

0.002

Benzoic acid

65850

N

30,000

Benzotrichloride

98077

Y

0.03

Benzyl chloride

100447

Y

2

Beryllium & compoundsa

Y

0.04

Biphenyl

92524

Y

600

Bis (chloromethyl) ether

542881

Y

0.002

Bis (2-ethylhexyl) phthalate (DEHP)

117817

Y

40

Boron and borates

N

4

Bromates (including Potassium bromate)

N

0.8

Bromine and compoundsm (except Hydrogen bromide & Bromates)

N

200

Bromodichloromethane

75274

N

3

Bromoform

75252

Y

100

1,3-Butadiene

106990

Y

3

Butyl benzyl phthalate

85687

N

2,000

Cadmium & compoundsa

Y

0.07

Calcium cyanamide

156627

Y

100

Captan

133062

Y

100

Carbaryl

63252

Y

900

Carbon disulfide

75150

Y

2,000

Carbon tetrachloride

56235

Y

8

Carbonyl sulfide

463581

Y

70

Catechol

120809

Y

500

Chloramben

133904

Y

200

Chlordane

57749

Y

0.1

Chlorinated paraffins (avg length C12- C13, 60% chlorine)

108171262

N

4

Chlorine

7782505

Y

10

Chlorine dioxide

10049044

N

9

Chloroacetic acid

79118

Y

10

2-Chloroacetophenone

532274

Y

0.09

4-Chloroaniline

106478

N

30

Chlorobenzene

108907

Y

20,000

Chlorobenzilate

510156

Y

80

1-Chloro-1,1-difluoroethane (CFC 142B)

75683

N

36,500

Chlorodifluoromethane (HCFC-22)

75456

N

36,500

Chloroform

67663

Y

20

Chloromethyl methyl ether

107302

Y

0.1

2-Chlorophenol

95578

N

60

4-Chloro-o-phenylenediamine

95830

N

20

Chloropicrin

76062

N

10

Chloroprene

126998

Y

100

p-chloro-o-toluidine

95692

N

1

Chromium III & compoundsa, insoluble salts

Y

20,000

Chromium VI & compoundsa

Y

0.009

Cobalt & compoundsa

Y

0.1

Coke oven emissions

8007452

Y

0.2

Copper & compoundsa, except Copper cyanide

N

40

p-Cresidine

120718

N

2

Cresols/Cresylic acid isomers and mixtures (Methylphenols)

1319773

Y

20,000

Cumene

98828

Y

1,000

Cupferron

135206

N

2

Cyanide & compounds (inorganic)j m, except Hydrogen cyanide

Y

100

Cyclohexane

110827

N

20,000

2,4-Diaminoanisole

615054

N

20

2,4-Diaminotoluene

95807

N

0.1

Diazomethane

334883

Y

90

Dibromochloromethane

124481

N

100

1,2-Dibromo-3-chloropropane

96128

Y

0.05

Dibutylphthalate

84742

Y

700

1,2-Dichlorobenzene

95501

N

700

1,4-Dichlorobenzene (p-Dichlorobenzene)

106467

Y

10

3,3'-Dichlorobenzidene

91941

Y

0.3

Dichloro diphenyl dichloroethylene (DDE)

3547044

Y

1

cis- 1,2-Dichloroethene

156592

N

1,000

trans- 1,2-Dichloroethene

156605

N

300

Dichloroethyl ether (Bis (chloroethyl) ether)

111444

Y

0.3

2,4-Dichlorophenoxyacetic acid, salts & esters (2,4-D)

94757

Y

90

1,3-Dichloropropene

542756

Y

20

Dichlorvos

62737

Y

1

Dieldrin

60571

N

0.02

Diethanolamine

111422

Y

300

Diethyl sulfate

64675

Y

0.3

1,1-Difluoroethane (HCFC 152a)

75376

N

36,500

3,3'-Dimethoxybenzidine

119904

Y

0.09

p-Dimethyl aminoazobenzene

60177

Y

0.09

n,n-Dimethyl aniline

121697

Y

20

3,3'-Dimethyl benzidine

119937

Y

0.002

Dimethyl carbamoyl chloride

79447

Y

0.03

Dimethyl formamide

68122

Y

3,000

1,1-Dimethyl hydrazine

57147

Y

0.1

1,2-Dimethyl hydrazine

540738

N

0.0007

2,4-Dimethylphenol

105679

N

200

Dimethyl phthalate

131113

Y

1,000

Dimethyl sulfate

77781

Y

0.02

4,6-Dinitro-o-cresol

534521

Y

4

2,4-Dinitrophenol

51285

Y

10

2,4-Dinitrotoluene

121142

Y

1

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

123911

Y

10

1,2-Diphenylhydrazine (Hydrazobenzene)

122667

Y

0.5

Epichlorohydrin

106898

Y

90

1,2-Epoxybutane

106887

Y

200

Ethyl acrylate

140885

Y

50

Ethyl benzene

100414

Y

9,000

Ethyl carbamate (Urethane)

51796

Y

0.3

Ethyl chloride (Chloroethane)

75003

Y

10,000

Ethylene dibromide (Dibromoethane)

106934

Y

0.2

Ethylene dichloride (1,2-Dichloroethane)

107062

Y

4

Ethylene glycol

107211

Y

700

Ethylene glycol monobutyl ether

111762

N

4,000

Ethylene glycol monoethyl ether

110805

Y

100

Ethylene glycol monoethyl ether acetate

111159

Y

40

Ethylene glycol monomethyl ether

109864

Y

30

Ethylene glycol monomethyl ether acetate

110496

Y

10,000

Ethylene imine (Aziridine)

151564

Y

0.005

Ethylene oxide

75218

Y

1

Ethylene thiourea

96457

Y

9

Ethylidene dichloride (1,1-Dichloroethane)

75343

Y

70

Fluorides & compoundsm, including Hydrogen fluoride

Y

7

Formaldehyde

50000

Y

9

Glutaraldehyde

111308

N

9

Glycol ethers, totalk (see also Minimum Quantities for individual glycol ethers)

Y

20,000

Heptachlor

76448

Y

0.009

Hexachlorobenzene

118741

Y

0.02

Hexachlorobutadiene

87683

Y

2

Hexachlorocyclohexanes, technical grade & mixed isomers

608731

Y

0.2

alpha-Hexachlorocyclohexane

319846

Y

0.07

beta-Hexachlorocyclohexane

319857

Y

0.2

gamma-Hexachlorocyclohexane (Lindane)

58899

Y

0.1

Hexachlorocyclopentadiene

77474

Y

20

Hexachloroethane

67721

Y

30

Hexamethylene-1,6-diisocyanate

822060

Y

0.6

Hexamethylphosphoramide

680319

Y

0.005

Hexane

110543

Y

20,000

Hydrazine

302012

Y

0.02

Hydrochloric acid (Hydrogen chloride)

7647010

Y

700

Hydrogen bromide

10035106

N

2,000

Hydrogen cyanide

74908

Y

100

Hydrogen sulfide

7783064

N

10

Hydroquinone

123319

Y

500

Isophorone

78591

Y

2,000

Isopropanol

67630

N

1,000

Lead & compoundsa, inorganic

Y

0.9

Lead - tetraethyl lead

78002

Y

9.E- 04

Maleic anhydride

108316

Y

4

Manganese & compoundsa

Y

0.2

Mercury & compoundsa - elemental & inorganic

Y

0.7

Mercury - Methyl mercury

22967926

Y

0. 3

Methanol

67561

Y

10,000

Methoxychlor

72435

Y

60

Methyl bromide (Bromomethane)

74839

Y

70

Methyl chloride (Chloromethane)

74873

Y

400

Methyl chloroform (1,1,1-Trichloroethane)

71556

Y

3,000

4,4-Methylene bis (2-chloroaniline)

101144

Y

0.2

Methylene chloride (Dichloromethane)

75092

Y

200

4,4-Methylenedianiline

101779

Y

0.2

Methylene diphenyl diisocyanate

101688

Y

70

Methyl ethyl ketone (2-Butanone)

78933

N

4,000

Methyl hydrazine

60344

Y

0.04

Methyl iodide (Iodomethane)

74884

Y

3,000

Methyl isobutyl ketone (Hexanone)

108101

Y

9,000

Methyl isocyanate

624839

Y

100

Methyl methacrylate

80626

Y

2,000

Methyl tert butyl ether (MTBE)

1634044

Y

3,000

Michler's ketone (4,4'-Bis (dimethylamino) benzophenone)

90948

N

0.4

Fine mineral fibersc

Y

2,000

Molybdenum and compoundsa

N

60

Naphthalene

91203

Y

3

Nickel and compoundsa, except Nickel subsulfide

Y

0.4

Nickel subsulfide

12035722

Y

0.2

Nitric acid

7697372

N

30

Nitrobenzene

98953

Y

200

4-Nitrobiphenyl

92933

Y

0.002

4-Nitrophenol

100027

Y

10

2-Nitropropane

79469

Y

10

N-Nitrosodi-n-butylamine

924163

N

0.07

N-Nitrosodiethylamine

55185

N

0.002

N-Nitrosodimethylamine

62759

Y

0.008

N-Nitrosodiphenylamine

86306

N

40

N-Nitrosdi-n-propylamine

621647

N

0.05

N-Nitroso-n-methylethylamine

10595956

N

0.02

N-Nitroso-n-methylurea

684935

Y

0.003

N-Nitrosomorpholine

59892

Y

0.05

N-Nitrosopiperidine

100754

N

0.04

N-Nitrosopyrrolidine

930552

N

0.2

Parathion

56382

Y

10

Pentachloronitrobenzene (Quintozene)

82688

Y

30

Pentachlorophenol

87865

Y

7

Phenol

108952

Y

30

p-Phenylenediamine

106503

Y

20

Phosgene

75445

Y

0.9

Phosphine

7803512

Y

30

Phosphoric acid

7664382

N

800

Phosphorus, white

7723140

Y

0.2

Phthalic anhydride

85449

Y

2,000

Polychlorinated biphenyls (PCBs), except Aroclor 1254

1336363

Y

0.1

PCBs- Aroclor 1254

11097691

Y

0. 2

Polychlorinated dibenzo dioxins (PCDDs), polychlorinated dibenzo furans (PCDFs) and dioxin-like polychlorinated biphenyls (PCBs)

Y

3 X 10-7d

Polycyclic Organic Matter

Y

0.01e

1,3-Propane sultone

1120714

Y

0.1

beta-Propiolactone

57578

Y

0.02

Propionaldehyde

123386

Y

20

Propoxur (Baygon)

114261

Y

10

n-Propyl bromide (1-Bromopropane)

106945

N

10,000

Propylene

115071

N

36,500

Propylene dichloride (1,2-Dichloropropane)

78875

Y

10

Propylene glycol monomethyl ether (PGME)

107982

N

36,500

Propylene oxide

75569

Y

30

1,2-Propylenimine (2-Methyl aziridine)

75558

Y

0.01

Quinoline

91225

Y

0.1

Quinone

106514

Y

100

Radionuclidesl

Y

20,000

Selenium & compoundsa except Hydrogen selenide and Selenium sulfide

Y

2,000

Selenium - Hydrogen selenide

7783075

Y

2

Selenium sulfide

7446346

Y

20

Sodium hydroxide

1310732

N

3

Styrene

100425

Y

3,000

Styrene oxide

96093

Y

2

Sulfatesf

N

40

Sulfuric acid and Oleumg

N

40

1,1,1,2-Tetrachloroethane

630206

N

300

1,1,2,2-Tetrachloroethane

79345

Y

6,000

Tetrachloroethylene (Perchloroethylene)

127184

Y

20

Tetrachlorophenols

25167833

N

10,000

1,1,1,2-Tetrafluoroethane

811972

N

36,500

Thioacetamide

62555

N

0.07

Titanium tetrachloride

7550450

Y

10

Toluene

108883

Y

1,000

2,4-Toluene diamine (2,4-Diaminotoluene)

95807

Y

0.1

2,4-and 2,6-Toluene diisocyanateh

26471625

Y

8

o-Toluidine

95534

Y

2

Toxaphene (Chlorinated camphene)

8001352

Y

0.03

1,2,4-Trichlorobenzene

120821

Y

90

1,1,2-Trichloroethane

79005

Y

30

Trichloroethylene

79016

Y

50

Trichlorofluoromethane

75694

N

3,000

2,4,5-Trichlorophenol

95954

Y

900

2,4,6-Trichlorophenol

88062

Y

30

Triethylamine

121448

Y

800

Trifluralin

1582098

Y

90

2,2,4-Trimethylpentane

540841

Y

20,000

Vanadium and compoundsa

N

0.07

Vinyl acetate

108054

Y

600

Vinyl bromide

593602

Y

0.5

Vinyl chloride

75014

Y

20

Vinylidene chloride (1,1-Dichloroethylene)

75354

Y

600

Xylenes, isomers and mixtures

1330207

Y

3,000

Zinc and compoundsa

N

3,000

aFor metal compounds, Minimum Quantities apply to the metal portion of the compound.

bAsbestos units are fibers/year.

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

dPCDD Minimum Quantity is in terms of 2,3,7,8-tetrachlorodibenzodioxin equivalents, calculated as specified in the Rhode Island Air Toxics Guideline.

ePolycyclic Organic Matter Minimum Quantity is in terms of benzo(a)pyrene equivalents, calculated as specified in the Rhode Island Air Toxics Guideline.

fSulfates MQ applies to ammonium bisulfate [(NH4)HSO4, CAS 7803-63-6], ammonium sulfate [(NH4)2SO4, CAS 7783-20-2], ferric sulfate [Fe(SO4)3, CAS 10028-22-5] and sodium sulfate [Na2SO4, CAS 7757-82-6]

gSulfuric acid and oleum MQ applies to sulfuric acid (H2SO4, CAS 7664-03-9), sulfur trioxide (SO3, CAS 7446-71-9) and oleum (H2SO4 + SO3, CAS 8014-95-7)

hIncludes 2,4-TDI (CAS 584849), 2,6-TDI (CAS 91087) and 2,4/2,6 mixtures (CAS 26471625)

iA "Y" in this column indicates that the substance is a Federal Hazardous Air Pollutant (HAP). Substances marked "N" are not Federal HAPs.

jXCN where X equals any group other than H where a formal dissociation may occur, such as KCN or Ca(Cn)2.

k 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-(OCH2CH)n-OH. Polymers are excluded from the glycol category.

lA type of atom which spontaneously undergoes radioactive decay.

m For bromine, cyanide and fluoride compounds, MQs apply to the bromine, cyanide or fluoride portion of the compound

Note: For all listings in the above table which contain the word "compounds" and for glycol ethers, the following applies: Unless otherwise specified, these listings are defined as including any unique chemical substance that contains the named chemical (i.e., antimony, arsenic, etc.) as part of that chemical's infrastructure.

250 R.I. Code R. 250-RICR-120-05-9.17