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National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Subtances; Second List of Priority Chemicals for Guideline Development

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AGENCY:

Environmental Protection Agency (EPA).

ACTION:

Notice.

SUMMARY:

The National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances (NAC/AEGL), established by EPA under the Federal Advisory Committee Act (FACA), develops AEGLs on an ongoing basis to assist with Federal, State, and other organization needs for short-term hazardous chemical exposure information. NAC/AEGL encourages the submission of acute toxicology data or other pertinent information on these chemicals and all other chemicals on the list to the Designated Federal Officer, listed under FOR FURTHER INFORMATION CONTACT.

ADDRESSES:

Comments may be submitted by mail, electronically, or in person. Please follow the detailed instructions for each method as provided in Unit I. of the SUPPLEMENTARY INFORMATION. To ensure proper receipt by EPA, it is imperative that you identify docket ID number OPPTS-2002-0017 in the subject line on the first page of your response.

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FOR FURTHER INFORMATION CONTACT:

For general information contact: Barbara Cunningham, Director, Environmental Assistance Division (7408M), Office of Pollution Prevention and Toxics, Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460; telephone number: (202) 554-1404; e-mail address: TSCA-Hotline@epa.gov.

For technical information contact: Paul S. Tobin, Economics, Exposure, and Technology Division (7406M), Office of Pollution Prevention and Toxics, Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460; telephone number: (202) 564-8557; e-mail address: tobin.paul@epa.gov.

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SUPPLEMENTARY INFORMATION:

I. General Information

A. Does this Action Apply to Me?

This action is directed to the public in general. This action may, however, be of interest to persons interested in the development of AEGLs for chemical Start Printed Page 38107emergency planning purposes. Since other entities may also be interested, the Agency has not attempted to describe all the specific entities that may be affected by this action. If you have any questions regarding the applicability of this action to a particular entity, consult the technical person listed under FOR FURTHER INFORMATION CONTACT.

B. How Can I Get Additional Information, Including Copies of this Document or Other Related Documents?

1. Electronically. You may obtain electronic copies of this document, and certain other related documents that might be available electronically, from the EPA Internet Home Page at http://www.epa.gov/​. To access this document, on the Home Page select “Laws and Regulations,” “Regulations and Proposed Rules,” and then look up the entry for this document under the Federal Register—Environmental Documents. You can also go directly to the Federal Register listings at http://www.epa.gov/​fedrgstr/​.

2. In person. The Agency has established an official record for this action under docket ID number OPPTS-2002-0017. The official record consists of the documents specifically referenced in this action, any public comments received during an applicable comment period, and other information related to this action, including any information claimed as Confidential Business Information (CBI). This official record includes the documents that are physically located in the docket, as well as the documents that are referenced in those documents. The public version of the official record does not include any information claimed as CBI. The public version of the official record, which includes printed, paper versions of any electronic comments submitted during an applicable comment period, is available for inspection in the TSCA Nonconfidential Information Center, North East Mall Rm. B-607, Waterside Mall, 401 M St., SW., Washington, DC. The Center is open from noon to 4 p.m., Monday through Friday, excluding legal holidays. The telephone number for the Center is (202) 260-7099.

C. How and to Whom Do I Submit Comments?

You may submit comments through the mail, in person, or electronically. To ensure proper receipt by EPA, it is imperative that you identify docket ID number OPPTS-2002-0017 in the subject line on the first page of your response.

1. By mail. Submit your comments to: Document Control Office (7407M), Office of Pollution Prevention and Toxics (OPPT), Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460.

2. In person or by courier. Deliver your comments to: OPPT Document Control Office (DCO) in EPA East Building Rm. 6428, 1201 Constitution Ave., NW., Washington, DC. The DCO is open from 8 a.m. to 4 p.m., Monday through Friday, excluding legal holidays. The telephone number for the DCO is (202) 564-8930.

3. Electronically. You may submit your comments electronically by e-mail to: oppt.ncic@epa.gov, or mail your computer disk to the address identified above. Do not submit any information electronically that you consider to be CBI. Electronic comments must be submitted as an ASCII file avoiding the use of special characters and any form of encryption. Comments and data will also be accepted on standard disks in WordPerfect 6.1/8.0 or ASCII file format. All comments in electronic form must be identified by docket ID number OPPTS-2002-0017. Electronic comments may also be filed online at many Federal Depository Libraries.

D. How Should I Handle CBI Information That I Want To Submit to the Agency?

Do not submit any information electronically that you consider to be CBI. You may claim information that you submit to EPA in response to this document as CBI by marking any part or all of that information as CBI. Information so marked will not be disclosed except in accordance with procedures set forth in 40 CFR part 2. In addition to one complete version of the comment that includes any information claimed as CBI, a copy of the comment that does not contain the information claimed as CBI must be submitted for inclusion in the public version of the official record. Information not marked confidential will be included in the public version of the official record without prior notice. If you have any questions about CBI or the procedures for claiming CBI, please consult the technical person listed under FOR FURTHER INFORMATION CONTACT.

E. What Should I Consider as I Prepare My Comments for EPA?

We invite you to provide your views on the various options we propose, new approaches we have not considered, the potential impacts of the various options (including possible unintended consequences), and any data or information that you would like the Agency to consider during the development of the final action. You may find the following suggestions helpful for preparing your comments:

1. Explain your views as clearly as possible.

2. Describe any assumptions that you used.

3. Provide copies of any technical information and/or data you used that support your views.

4. If you estimate potential burden or costs, explain how you arrived at the estimate that you provide.

5. Provide specific examples to illustrate your concerns.

6. Offer alternative ways to improve the notice or collection activity.

7. Make sure to submit your comments by the deadline in this notice.

8. To ensure proper receipt by EPA, be sure to identify the docket ID number assigned to this action in the subject line on the first page of your response. You may also provide the name, date, and Federal Register citation.

II. Background

A. What Action is the Agency Taking?

This list of 371 priority chemicals is a composite of numerous priority lists of acutely toxic chemicals and represents the selection of chemicals for AEGL development by the NAC/AEGL during the next several years. The list has been assembled from the individual lists of chemicals nominated by NAC/AEGL member organizations for AEGL development. Although the priority list of chemicals, published in this notice, is subject to modification as priorities of the NAC/AEGL committee or the NAC/AEGL member organizations change, it is anticipated that most of the chemicals on the priority list will remain as high priority for AEGL development during the next several years. The NAC/AEGL intends to address at least 30 chemicals per year in the AEGL development process. There are 137 chemicals on this list of 371 priority chemicals that are considered a higher priority (indicated by an asterisk below), based on considerations of toxicity, volatility, presence on numerous organization chemical lists, and other factors. These chemicals are planned to be addressed prior to the other listed chemicals. Any suggested additions to this priority list and the rationale for their addition may be addressed to the Designated Federal Officer. An initial listing of 85 priority chemicals was published in the Federal Register of May 21, 1997 (62 FR 27733) (FRL-5713-7), to facilitate participation by the public in the AEGL process.

It is believed that publication of today's list of chemicals will provide individuals and organizations with Start Printed Page 38108ample time to gather existing data and information and, where appropriate, to develop new data and information on the acute toxicity of the chemicals listed herein, for the consideration of the NAC/AEGL. Parties possessing such data and information or those anticipating the future conduct of toxicity studies on any of these chemicals should contact the Designated Federal Officer.

Table 1.—Second List of AEGL Priority Chemicals for Guideline Development

CAS No.Chemical Name
50-00-0Formaldehyde*
50-29-34,4'-DDT
50-32-8Benzo(a)pyrene*
54-11-5Nicotine
56-38-2Parathion*
56-55-3Benzo(a)anthracene
56-72-4Coumaphos
57-24-9Strychnine*
57-57-8Beta-Propiolactone
57-74-9Chlordane*
58-89-9Lindane (hexachlorocyclohexane)
60-29-7Ethyl ether
60-51-5Dimethoate
60-57-1Dieldrin
62-38-4Phenylmercuric acetate*
62-73-7Dichlorvos
62-74-8Sodium fluoroacetate*
62-75-9Nitrosodimethylamine
64-18-6Formic acid
64-19-7Acetic acid
67-64-1Acetone*
74-82-8Methane
74-83-9Methyl bromide*
74-87-3Methyl chloride*
74-88-4Methyl iodide
74-89-5Methyl amine*
74-98-6Propane*
75-00-3Chloroethane
75-01-4Vinyl chloride*
75-02-5Vinyl fluoride
75-04-7Ethyl amine*
75-05-8Acetonitrile
75-07-0Acetaldehyde*
75-08-1Ethyl mercaptan*
75-12-7Formamide
75-15-0Carbon disulfide*
75-18-3Dimethyl sulfide
75-25-2Bromoform
75-34-31,1-Dichloroethane
75-36-5Acetyl chloride*
75-50-3Trimethylamine*
75-54-7Methyl dichlorosilane*
75-65-0t-Butyl alcohol
75-93-4Methyl sulfate
76-02-8Trichloroacetyl chloride*
76-06-2Chloropicrin*
76-44-8Heptachlor
77-47-4Hexachlorocyclopentadiene
77-78-1Dimethyl sulfate*
78-00-2Tetraethyl lead
78-71-7Oxetane, 3,3-bis(chloromethyl)-
78-85-3Methacrylaldehyde*
78-87-51,2-Dichloropropane
78-94-4Methyl vinyl ketone*
78-95-5Chloroacetone (stabilized)*
78-97-7Lactonitrile
79-04-9Chloroacetyl chloride*
79-06-1Crylamide
79-09-4Propionic acid
79-14-1Glycolic acid
79-19-6Thiosemicarbazide
79-38-9Trifluorochloroethylene
79-41-4Methacrylic acid*
79-57-2Terramycin*
80-15-9Cumene hydroperoxide
80-56-8alpha-Pinene
80-62-6Methyl methacrylate*
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80-63-7Methyl 2-chloroacrylate
81-81-2Warfarin
82-66-6Diphacinone
84-66-2Diethyl phthalate
84-74-2di-n-Butyl phthalate
85-68-7Butyl benzyl phthalate
86-50-0Azinphos-methyl*
86-74-8Carbazole
87-86-5Pentachlorophenol
92-52-4Biphenyl
94-75-72,4-Dichlorophenyoxy acetic acid
95-48-7o-Cresol
95-63-6Trimethyl benzene
96-29-72-Butanone oxime
97-02-92,4-Dinitroaniline*
98-05-5Phenyl arsonic acid
98-07-7Benzyl trichloride
98-09-9Benzenesulfonyl chloride
98-13-5Trichlorophenyl silane
98-16-83-(Trifluoromethyl) Aniline
98-82-8Cumene
98-87-3Benzal chloride
98-88-4Benzoyl chloride
98-95-3Nitrobenzene
100-14-1Benzene, 1-(chloromethyl)-4-nitro-
100-41-4Ethyl benzene
100-42-5Styrene*
100-44-7Benzyl chloride
100-51-6Benzyl alcohol
101-68-84,4-Methylenediphenyl diisocyanate*
103-71-9Phenyl isocyanate
105-60-2Caprolactam
106-44-5p-Cresol
106-50-3p-Phenylenediamine
106-88-71,2-Butylene oxide
106-93-4Dibromoethane*
106-96-7Propargyl bromide
106-97-8Butane*
106-99-0Butadiene*
107-05-1Allyl chloride
107-06-21,2-Dichloroethane
107-07-3Chloroethanol
107-13-1Acrylonitrile*
107-14-2Chloroacetonitrile*
107-16-4Formaldehyde cyanohydrin
107-19-7Propargyl alcohol
107-20-0Chloroacetaldehyde*
107-21-1Ethylene glycol
107-37-9Allyl trichlorosilane
107-72-2Amyltrichlorosilane
108-05-4*Vinyl acetate monomer
108-10-14-Methyl-2-pentanone
108-24-7Acetic anhydride*
108 31-6Maleic anhydride*
108-39-4m-Cresol
108-65-6Propylene glycol monomethyl ether acetate
108-67-8Mesitylene
108-90-7Chlorobenzene*
108-98-5Phenylmercaptan*
109-73-9n-Butylamine
109-77-3Malononitrile*
109-89-7Diethyl amine
109-90-0Ethyl isocyanate
109-99-9Tetrahydrofuran*
110-54-3Hexane*
110-57-6Trans-1,4-dichlorobutene
110-78-1n-Propyl isocyanate
110-82-7Cyclohexane*
110-86-1Pyridine
111-34-2Butyl vinyl ether
111-36-4n-Butyl isocyanate*
111-42-2Diethanolamine
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111-44-4Dichloroethyl ether
111-48-8Thiodiglycol
111-69-3Adiponitrile
111-77-3Diethylene glycol monomethyl ether
111-88-6n-Octylmercaptan*
115-21-9Trichloroethyl silane
116-06-3Aldicarb*
116-14-3Tetrafluoroethylene
116-15-4Hexafluoropropylene
117-84-0Dioctyl phthalate
118-52-51,3-Dichloro-5,5-dimethylhydantoin
120-82-11,2,4-Trichlorobenzene
121-75-5Malathion
122-14-5Fenitrothion
123-31-9Hydroquinone
123-38-6Propionaldehyde*
123-86-4n-Butyl acetate*
124-40-3Dimethyl amine*
124-63-0Methanesulfonyl chloride
124-65-2Sodium cacodylate
129-00-0Pyrene
131-11-3Dimethyl phthalate
140-88-5Ethyl acrylate*
141-32-2Butylacrylate*
141-43-5Monoethanolamine
141-59-3t-Octyl mercaptan
141-66-2Dicrotophos
141-78-6Ethyl acetate*
143-33-9Sodium cyanide*
144-62-7Oxalic acid
149-74-6Dichloromethylphenyl silane
150-76-5p-Methoxyphenol
151-38-2Methoxyethyl mercury*
207-08-9Benzo(k)fluoranthene
218-01-9Chrysene
287-92-3Cyclopentane
297-78-9Isobenzan
298-00-0Methyl parathion*
298-02-2Phorate*
298-04-4Disulfoton*
300-62-9Amphetamine
333-41-5Diazinon
334-88-3Diazomethane*
353-50-4Carbonyl fluoride*
354-32-5Trifluoroacetyl chloride
371-62-0Ethylene fluorohydrin
382-21-8Perfluoroisobutylenene
453-18-9Methyl fluoroacetate*
460-19-5Cyanogen*
463-51-4Ketene*
463-58-1Carbonyl sulfide*
463-71-8Thiophosgene
503-38-8Diphosgene
506-68-3Cyanogen bromide*
506-78-5Cyanogen iodide
506-96-7Acetyl bromide
534-52-14,6-Dinitro-o-cresol
538-07-8Bis(2-chloroethyl)ethylamine
541-25-3Lewisite
541-41-3Ethyl chloroformate*
542-88-1bis-Chloromethyl ether*
543-27-1i-Butyl chloroformate
555-77-1Tris(2-chloroethyl)amine (N-Mustard)
556-61-6Methyl isothiocyanate
556-64-9Methyl thiocyanate*
563-12-2Ethion
578-94-9Adamsite
592-34-7n-Butyl chloroformate
593-53-3Methyl fluoride
593-89-5Methyl dichloroarsine
598-14-1Ethyl dichloroarsine
598-31-2Bromoacetone
Start Printed Page 38111
622-44-6Phenyl carbylamine chloride
624-92-0Dimethyl disulfide*
625-55-8Isopropyl formate
627-44-1Diethyl mercury
640-19-7Fluoroacetamide
646-06-0Diulane
674-82-8Diketene*
675-14-9Cyanuric fluoride
676-83-5Methyl phosphonous dichloride
676-97-1Methyl phosphonic dichloride
681-84-5Tetamethoxysilane
684-16-2Hexafluoroacetone*
696-28-6Phenyl dichloroarsine
732-11-6Phosmet
757-58-4Hexaethyl tetraphosphate
813-78-5Dimethyl phosphate
919-86-8Demeton S-methyl
920-46-7Methacryloyl chloride
944-22-9Fonofos*
950-37-8Methidathion*
993-00-0Methyl chlorosilane*
993-13-5Methylphosphonic acid
993-43-1Ethylphosphonodithioicdichloride
999-81-5Clormequat chloride
1024-57-3Heptachlor epoxide
1120-71-41,3-Propane sultone
1303-28-2Arsenic pentoxide
1306-02-1Lewisite oxide
1314-84-7Zinc phosphide
1319-77-3Cresol*
1327-53-3Arsenic trioxide*
1336-36-3Polychlorinated biphenyl
1341-24-8Chloroacetophenone*
1341-49-7Ammonium bifluoride
1397-94-0Antimycin A
1498-40-4Ethylphosphonous dichloride
1498-51-7Ethylphosphorodichloridate
1558-25-4Chloromethyl (trichloro) silane
1563-66-2Carbofuran*
1582-09-8Trifluralin
1609-86-5t-Butyl isocyanate
1634-04-4Methyl t-butyl ether*
1675-54-3Bisphenol A diglycidyl ether
1737-93-53,5-Dichloro-2,4,5-trifluoropyridine
1746-01-62,3,7,8-Tetrachlorodibenzo-p-dioxin*
1832-54-8Isopropyl methyl phosphonic acid
1873-29-6Isobutyl isocyanate
1910-42-5Paraquat dichloride*
2032-65-7Methiocarb
2231-57-4Thiocarbazide
2487-90-3Trimethoxysilane
2524-03-0Dimethyl phosphorochloridothioate
2696-92-6Nitrosyl chloride*
2698-41-1o-Chlorobenzylidene malononitrile*
2699-79-8Sulfuryl fluoride*
2937-50-0Allylchloroformate
2941-64-2Ethyl chlorothioformate
3048-64-4Vinyl norbornene
3173-53-3Cyclohexyl isocyanate*
3282-30-2Trimethylacetyl chloride
3689-24-5Tetraethyl dithiopyrophosphate (Sulfotep)*
3691-35-8Chlorophacinone
4098-71-9Isophorone diisocyanate
4109-96-0Dichlorosilane
4300-97-4Chloropivaloyl chloride
4418-66-0Phenol, 2,2'-thiobis(4-chloro-6-methyl-)
5332-73-03-Methoxypropyl amine
5798-79-8Bromobenzyl cyanide
6427-21-0Methoxymethyl isocyanate
6581-06-23-Quinuclidinyl benzilate
6923-22-4Monocrotophos*
7439-92-1Lead & compounds including lead phosphate*
Start Printed Page 38112
7439-96-5Manganese & compounds
7439-97-6Mercury & compounds including methyl mercury*
7440-02-0Nickel and compounds*
7440-38-2Arsenic & compounds*
7440-39-3Barium & compounds
7440-41-7Beryllium & compounds*
7440-43-9Cadmium & compounds*
7440-48-4Cobalt & compounds
7440-50-8Copper & compounds
7440-62-2Vanadium & compounds
7440-66-6Zinc & compounds
7446-18-6Thallium sulfate*
7446-70-0Aluminum chloride
7521-80-4Butyltrichlorosilane
7550-45-0Titanium tetrachloride*
7580-67-8Lithium hydride
7616-94-6Perchloryl fluoride
7631-89-2Sodium arsenate
7647-19-0Phosphorus pentafluoride*
7664-38-2Phosphoric acid*
7705-07-9Titanium chloride
7719-09-7Thionyl chloride*
7722-84-1Hydrogen peroxide (concentration greater than 52%)*
7723-14-0Phosphorus
7727-15-3Aluminum bromide
7738-94-5Chromic acid
7782-65-2Germane
7782-68-5Iodic acid
7783-07-5Hydrogen selenide*
7783-41-7Oxygen difluoride*
7783-54-2Nitrogen trifluoride*
7783-61-1Silicon tetrafluoride*
7783-70-2Antimony pentafluoride
7783-71-3Tantalum V fluoride
7783-79-1Selenium hexafluoride*
7783-80-4Tellurium hexafluoride*
7783-82-6Tungsten hexafluoride
7784-46-5Sodium arsenite*
7786-34-7Mevinphos*
7787-71-5Bromine trifluoride*
7789-21-1Fluorosulfonic acid
7789-30-2Bromine pentafluoride*
7789-59-5Phosphorus oxybromide
7789-69-7Phosphorus pentabromide
7789-75-5Calcium fluoride
7790-94-5Chlorosulfonic acid*
7791-23-3Selenium oxychloride
7791-25-5Sulfuryl chloride*
7803-49-8Hydroxylamine*
7803-52-3Stibine (antimony hydride)*
7803-62-5Silane*
8001-35-2Camphechlor
8006-61-9Gasoline*
10025-67-9Disulfur dichloride
10025-73-7Chromic chloride
10026-13-8Phosphorus pentachloride
10028-15-6Ozone*
10034-85-2Hydrogen iodide*
10035-10-6Hydrogen bromide*
10265-92-6Methamidophos*
10294-33-4Boron tribromide*
10544-72-6Nitrogen tetroxide
10544-73-7Nitrogen trioxide
10545-99-0Sulfur dichloride*
11099-02-8Nickel oxide*
12002-03-8Copper acetoarsenite*
12108-13-3Manganese, tricarbonyl methylcyclopentadienyl
13071-79-9Terbufos*
13194-48-4Ethoprophos
13470-08-1Titanium III fluoride
13637-63-3Chlorine pentafluoride*
13863-41-7Bromine chloride*
Start Printed Page 38113
16752-77-5Methomyl*
17462-58-7iso-Butyl chloroformate
19624-22-7Pentaborane*
20816-12-0Osmium tetroxide*
20859-73-8Aluminum phosphide*
22224-92-6Fenamiphos
22967-92-6Methyl mercury
23135-22-0Oxamyl
23422-53-9Formetanate hydrochloride
25321-14-6Dinitrotoluene
25321-22-6Dichlorobenzene
26419-73-8Tirpate
27137-85-5Trichloro (dichlorophenyl) silane
28772-56-7Bromodiolone
30674-80-7Methacryloyloxyethyl isocyanate
32315-10-9Triphosgene
*Indicates Higher Current Priority
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List of Subjects

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Dated: May 23, 2002.

William H. Sanders III,

Director, Office of Pollution Prevention and Toxics.

End Signature End Supplemental Information

[FR Doc. 02-13700 Filed 5-30-02; 8:45 am]

BILLING CODE 6560-50-S