Combustion Turbine Work Group Chair/Co-Chair
ICCR Combustion Turbine Source Work Group

Attached are the HAPs Selection and Test Method tables for natural gas fired turbines. This lists
contains the names of the 189 Hazardous Air Pollutants (HAPs) that have, based on experience,
been screened for potential presence in emissions from natural gas fired turbines. This preliminary
screening has been performed by the Testing and Monitoring Protocol Work Group (TMPWG).
These tables are being forwarded to the Combustion Turbine Source Work Group (SWG) for
review and comment.

The table includes HAPs that may be present in natural gas fired turbines emissions. Additionally,
a listing of testing methods that have been used and have the potential to quantify the HAPs
presence in flue gas emissions are included.

For those HAPs that are not included in the list, a codified reason for their exclusion is provided.
Exclusion codes include:

1- Compound is not expected to be emitted from source because basic chemical or
physical principles do not favor its existence in source exhaust.

2 - Existing test data indicate that compound is not emitted in significant quantities from
source.

Other exclusion codes are included as appropriate.

It should be noted that this table is general in its first draft and represents the extent of the
TMPWG's knowledge and experience with emissions from natural gas fired turbines. Please
review carefully from a standpoint of those HAPs included as well as those HAPs excluded. The
subgroup within the TMPWG that is responsible for the development of this table has included a
preface that provides the sources of information utilized to develop the table, the rationale for
exclusion codes, and the names of the TMPWG contact for the Combustion Turbine SWG.

If we can be of service in any other fashion or if you have any questions concerning in the table,
please contact John Precjewski, the TMPWG's member who is monitoring the activities of your
SWG.

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HAP Selection and Test Methods for Natural Gas Turbines

The attached HAPS Selection and Test Methods for Natural Gas Turbines identifies analytical
procedures of interest in determining significant HAPS emissions. The 10 chemicals that were
included in the list are the most likely to be significant to the ICCR rule making process. The
chemicals were obtained from the AP-42 emission factor list. Inclusion on this list is not intended to
imply that these substances will in fact be emitted from all engines, but we believe that they potentially
could be emitted from some engines at rates that exceed 0.1 ton/year. Subsequent reviews or
measurements by the Source Work Group will better define emission rates for the different types and
sizes of turbines.

Chemicals that were excluded for measurements were done on the basis of measurements reported
in the references listed below. The emissions of these chemicals were measured to be less than 0.1
ton/year.

Other chemicals were excluded on generally known chemical principles. Chlorine and bromine
containing chemicals were excluded on the basis of no chlorine or bromine atoms being present
during the combustion. Insecticides, herbicides and other industrial chemical intermediates were
excluded on the basis of not being in the fuel, and chemical conditions not being favorable for their
formation during combustion.

References

1.	"Gas-Fired Boiler and Turbine Air Toxics Summary Report", Gas Research Instutute, Report
No GRI-95/0200.

2.	"Study of Hazardous Air Pollutant Emissions from Electric Utility Steam Generating Units —
Interim Final Report, Volume 2.", U. S. Environmental Protection Agency, Report No. EPA-
453/R-96-013b.

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HAPS Selection and Test Method

s for Source Category













Source C

ategory:

Natural Gas Turbines











If excluded, give reason for



Include





exclusion (use codes where

If Included, give applicable

in List

CAS No.

Chemical name

appropriate)

test method(s)

X

75070 [ Acetaldehyde [

FTIR

60355

Acetamide 1

Method(s)?

| 75058

Acetonitrile | 1

Method(s)?

98862 Acetophenone 1

Method(s)?

| 53963 |2-Acetylaminofluorene | 1

Method(s)?

X

107028

Acrolein

FTIR

| 79061

Acrylamide | 1

Method(s)?

| 791071 Acrylic acid | 1

Method(s)?

107131

Acrylonitrile 1

Method(s)?

107051

Allyl chloride 1

Method(s)?

92671

4-Aminobiphenyl 1

Method(s)?

62533

Aniline 1

Method(s)?

90040

o-Anisidine | 1

Method(s)?

| 1332214

Asbestos 1

Method(s)?

X

71432

Benzene

EPA TO-14

92875

Benzidine | 1

Method(s)?

98077

Benzotrichloride 1

Method(s)?

| 100447

Benzyl chloride 1

Method(s)?

X

92524

Biphenyl |

CARB 429

117817

Bis(2-ethylhexyl)phthalate (DEHP) 1

Method(s)?

542881

Bis(chloromethyl)ether 1

Method(s)?

75252

Bromoform | 1

Method(s)?

106990

1,3-Butadiene 2

Method(s)?

156627

Calcium cyanamide 1

Method(s)?

133062

Captan 1

Method(s)?

63252

Carbaryl 1

Method(s)?

75150

Carbon disulfide 1

Method(s)?

56235

Carbon tetrachloride | 1

Method(s)?

463581

Carbonyl sulfide 1

Method(s)?

120809

Catechol 1

Method(s)?

133904

Chloramben | 1

Method(s)?

57749

Chlordane 1

Method(s)?

7782505

Chlorine 1

Method(s)?

| 79118

Chloroacetic acid | 1

Method(s)?

| 53227412-Chloroacetophenone | 1

Method(s)?

108907

Chiorobenzene 1

Method(s)?

510156

Chlorobenzilate | 1

Method(s)?

67663

Chloroform 1

Method(s)?

107302

Chloromethyl methyl ether 1

Method(s)?

126998

Chloroprene | 1

Method(s)?

1319773

Cresols/Cresylic acid (isomers and mixture) 1

Method(s)?

95487

o-Cresol 1

Method(s)?

108394

m-Cresol | 1

Method(s)?

106445

p-Cresol 1

Method(s)?

98828

Cumene 1

Method(s)?

94757

2,4-D, salts and esters | 1

Method(s)?

3547044

DDE 1

Method(s)?

334883

Diazomethane 1

Method(s)?

132649

Dibenzofurans | 1

Method(s)?

96128

1,2-Dibromo3-chloropropane 1

Method(s)?

84742

Dibutylphthalate 1

Method(s)?

106467

1,4-Dichlorobenzene(p) | 1

Method(s)?

91941

3,3-Dichlorobenzidene 1

Method(s)?

111444

Dichloroethyl ether (Bis(2-chloroethyl)ether) 1

Method(s)?

542756

1,3-Dichloropropene | 1

Method(s)?

I 62737

Dichlorvos | 1

Method(s)?

Page 3 of 6

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HAPS Selection and Test Method

s for Source Category













Source C

ategory:

Natural Gas Turbines











If excluded, give reason for



Include





exclusion (use codes where

If Included, give applicable

in List

CAS No.

Chemical name

appropriate)

test method(s)

1 111422

Diethanolamine I 1

Method(s)?

121697

N,N-Diethyl aniline (N,N-Dimethylaniline) 1

Method(s)?

64675

Diethyl sulfate 1

Method(s)?

119904

3,3-Dimethoxybenzidine | 1

Method(s)?

60117

Dimethyl aminoazobenzene 1

Method(s)?

119937

3,3-Dimethyl benzidine 1

Method(s)?

79447

Dimethyl carbamoyl chloride | 1

Method(s)?

68122

Dimethyl formamide 1

Method(s)?

57147

1,1-Dimethyl hydrazine 1

Method(s)?

131113

Dimethyl phthalate | 1

Method(s)?

77781

Dimethyl sulfate 1

Method(s)?

| 534521

4,6-Dinitroo-cresol, and salts | 1

Method(s)?

| 5128512,4-Dinitrophenol | 1

Method(s)?

121142

2,4-Dinitrotoluene 1

Method(s)?

123911

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

Method(s)?

122667

1,2-Diphenylhydrazine 1

Method(s)?

106898

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

Method(s)?

106887

1,2-Epoxybutane 1

Method(s)?

| 140885

Ethyl acrylate 1

Method(s)?

X

100414

Ethyl benzene

EPA TO-14

51796

Ethyl carbamate (Urethane) 1

Method(s)?

| 75003

Ethyl chloride (Chloroethane) 1

Method(s)?

CO
CT>
CD
o

Ethylene dibromide (Dibromoethane) 1

Method(s)?

107062

Ethylene dichloride (1,2-Dichloroethane) 1

Method(s)?

107211

Ethylene glycol 1

Method(s)?

151564

Ethylene imine (Aziridine) 1

Method(s)?

75218

Ethylene oxide 1

Method(s)?

96457

Ethylene thiourea 1

Method(s)?

| 75343

Ethylidene dichloride (1,1-Dichloroethane) 1

Method(s)?

X

50000

Formaldehyde

CARB 430, FTIR

76448

Heptachlor 1

Method(s)?

118741

Hexachlorobenzene 1

Method(s)?

87683

Hexachlorobutadiene 1

Method(s)?

77474

Hexachlorocyclopentadiene 1

Method(s)?

67721

Hexachloroethane 1

Method(s)?

822060

Hexamethylene-1,6-diisocyanate 1

Method(s)?

| 680319

Hexamethylphosphoramide 1

Method(s)?

X

110543

Hexane

EPA TO-14

302012

Hydrazine 1

Method(s)?

| 7647010

Hydrochloric acid 1

Method(s)?

CO
CT>
CO

CD
CD
h-

Hydrogen fluoride (Hydrofluoric acid) 1

Method(s)?

CD
o

CO
00
h-

Hydrogen sulfide 1

Method(s)?

123319

Hydroquinone 1

Method(s)?

78591

Isophorone 1

Method(s)?

58899

Lindane (all isomers) 1

Method(s)?

| 108316

Maleic anhydride 1

Method(s)?

X

67561

Methanol

EPA TO-14; FTIR

72435

Methoxychlor 1

Method(s)?

74839

Methyl bromide (Bromomethane) 1

Method(s)?

74873

Methyl chloride (Chloromethane) 1

Method(s)?

71556

Methyl chloroform (1,1,1-Trichloroethane) 1

Method(s)?

78933

Methyl ethyl ketone (2-Butanone) 1

Method(s)?

60344

Methyl hydrazine 1

Method(s)?

74884

Methyl iodide (lodomethane) 1

Method(s)?

108101

Methyl isobutyl ketone (Hexone) 1

Method(s)?

| 624839

Methyl isocyanate | 1

Method(s)?

Page 4 of 6

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HAPS Selection and Test Method

s for Source Category













Source C

ategory:

Natural Gas Turbines











If excluded, give reason for



Include





exclusion (use codes where

If Included, give applicable

in List

CAS No.

Chemical name

appropriate)

test method(s)

| 80626

Methyl methacrylate | 1

Method(s)?

[ 1634044

Methyl tert butyl ether | 1

Method(s)?

| 101144 |4,4-Methylene bis(2-chloroaniline) | 1

Method(s)?

75092

Methylene chloride (Dichloromethane) | 1

Method(s)?

101688

Methylene diphenyl diisocyanate (MDI) 1

Method(s)?

101779

4,4-Methylenedianiline 1

Method(s)?

91203

Naphthalene | 2

CARB 429; EPA 0010

I 98953

Nitrobenzene | 1

Method(s)?

92933 4-Nitrobiphenyl 1

Method(s)?

100027 4-Nitrophenol 1

Method(s)?

I 79469 |2-Nitropropane | 1

Method(s)?

684935

N-Nitroso-Nmethyiurea 1

Method(s)?

62759

N-Nitrosodimethylamine | 1

Method(s)?

59892

N-Nitrosomorpholine 1

Method(s)?

56382

Parathion 1

Method(s)?

82688

Pentachloronitrobenzene (Quintobenzene) | 1

Method(s)?

I 87865

Pentachlorophenol 1

Method(s)?

X

108952

Phenol

EPA 0010; CARB 429(m)

106503

p-Phenylenediamine | 1

Method(s)?

75445

Phosgene 1

Method(s)?

7803512

Phosphine 1

Method(s)?

7723140

Phosphorus | 1

Method(s)?

85449

Phthalic anhydride 1

Method(s)?

1336363

Polychlorinated biphenyls (Aroclors) 1

Method(s)?

1120714

1,3-Propane sultone | 1

Method(s)?

57578

beta-Propiolactone 1

Method(s)?

123386

Propionaldehyde 1

Method(s)?

114261

Propoxur (Baygon) | 1

Method(s)?

78875

Propylene dichloride (1,2-Dichloropropane) 1

Method(s)?

75569

Propylene oxide 1

Method(s)?

75558

1,2-Propylenimine (2-Methyl aziridine) [ 1

Method(s)?

91225

Quinoline 1

Method(s)?

I 106514

Quinone 1

Method(s)?

X

100425

Styrene |

EPA TO-14

96093

Styrene oxide 1

Method(s)?

1746016

2,3,7,8-Tetrachlorodibenzo-p-dioxin 1

Method(s)?

| 79345

1,1,2,2-Tetrachloroethane | 1

Method(s)?

| 127184 | Tetrachloroethyiene (Perchloroethylene) | 1

Method(s)?

7550450

Titanium tetrachloride 1

Method(s)?





EPA TO-14; EPA 0030; CARB

X

108883

Toluene |

422

| 95807

2,4-Toluene diamine | 1

Method(s)?

| 58484912,4-Toluene diisocyanate | 1

Method(s)?

| 95534

o-Toluidine | 1

Method(s)?

| 8001352 |Toxaphene (chlorinated camphene) | 1

Method(s)?

120821

1,2,4-Trichlorobenzene | 1

Method(s)?

| 79005

1,1,2-Trichloroethane | 1

Method(s)?

79016 Trichloroethylene 1

Method(s)?

95954 2,4,5-Trichlorophenol 1

Method(s)?

88062 2,4,6-Trichlorophenol 1

Method(s)?

| 1214481 Triethylamine | 1

Method(s)?

1582098

Trifluralin | 1

Method(s)?

| 540841

2,2,4-Trimethylpentane | 1

Method(s)?

108054 Vinyl acetate 1

Method(s)?

593602 Vinyl bromide 1

Method(s)?

| 750141 Vinyl chloride | 1

Method(s)?

Page 5 of 6

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HAPS Selection and Test Method

s for Source Category













Source C

ategory:

Natural Gas Turbines











If excluded, give reason for



Include





exclusion (use codes where

If Included, give applicable

in List

CAS No.

Chemical name

appropriate)

test method(s)



75354

Vinylidene chloride (1,1-Dichloroethylene)

1

Method(s)?

X

1330207

Xylenes (isomers and mixture

EPA 0030; 18; CARB 422

X

95476

o-Xylenes

EPA 0030; 18; CARB 422

X

108383

m-Xylenes |

EPA 0030; 18; CARB 422

X

106423

p-Xylenes

EPA 0030; 18; CARB 422



N/A

Antimony Compounds |

Method(s)?



N/A

Arsenic Compounds (inorganic including arsine)

2

EPA Method 29



N/A

Beryllium Compounds

2

EPA Method 29



N/A

Cadmium Compounds

2

EPA Method 29



N/A

Chromium Compounds

2

EPA Method 29



N/A

Cobalt Compounds

2

EPA Method 29



N/A

Coke Oven Emissions

NA

Method(s)?



N/A

Cyanide Compounds *1

1

Method(s)?



N/A

Glycol ethers *2

1

Method(s)?



N/A

Lead Compounds

2

EPA Method 29



N/A

Manganese Compounds

2

EPA Method 29



N/A

Mercury Compounds

2

EPA Method 29



N/A

Fine mineral fibers *3

1

Method(s)?



N/A

Nickel Compounds

2

EPA Method 29



N/A

Polycylic Organic Matter *4

2

EPA 0010; CARB 429



N/A

Radionuclides (including radon) *5

1

Method(s)?



N/A

Selenium Compounds

2

EPA Method 29

Page 6 of 6

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