[Federal Register Volume 62, Number 98 (Wednesday, May 21, 1997)]
[Notices]
[Pages 27733-27734]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-13327]


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ENVIRONMENTAL PROTECTION AGENCY

[OPPTS-41047;FRL-5713-7]


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

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of list of priority chemicals.

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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. An initial listing 
of 85 priority chemicals is provided in this notice to facilitate 
participation by the public in the AEGL process. Sixteen (16) of these 
priority chemicals have already been addressed by the NAC/AEGL (as 
noted in the table) and it is anticipated that proposed AEGL values and 
accompanying rationale for approximately 13 chemicals will be published 
in the Federal Register for comment within the next several months. 
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, see ``FOR FURTHER INFORMATION 
CONTACT''.

ADDRESSES: Submit three copies of the data or other pertinent 
information identified by the docket control number [OPPTS-41047] to: 
TSCA Document Control Office (7407), Office of Pollution Prevention and 
Toxics, Environmental Protection Agency, Room ET-G99, 401 M St., SW., 
Washington, DC 20460 and one copy to the Designated Federal Officer in 
``FOR FURTHER INFORMATION CONTACT''.
    A public version of this record, which does not include any 
information claimed as Confidential Business Information (CBI), is 
available for inspection from 12 noon to 4 p.m., Monday through Friday, 
excluding legal holidays. The public record is located in TSCA Dockets, 
Room NEB-607, Environmental Protection Agency, 401 M St., SW., 
Washington, DC.

FOR FURTHER INFORMATION CONTACT: Paul S. Tobin, Designated Federal 
Officer, Office of Prevention, Pesticides, and Toxic Substances (7406), 
Environmental Protection Agency, 401 M St., SW., Washington, DC 20460. 
Location, phone number, and e-mail address: Room 349A, East Tower, 
Environmental Protection Agency, 401 M St., SW., Washington, DC, 202-
260-1736, e-mail: [email protected].
SUPPLEMENTARY INFORMATION: The list of 85 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 2 to 3 years. The list has been assembled from the 
individual lists of chemicals nominated by NAC/AEGL member 
organizations for AEGL development. Although this 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

[[Page 27734]]

per year in the AEGL development process and, therefore, this list of 
chemicals will be expanded as the NAC/AEGL continues to focus on 
chemicals of interest to its member organizations. Any suggested 
additions to this initial priority list and the rationale for their 
addition may be addressed to the Designated Federal Officer.
    It is believed that publication of this initial list of chemicals 
will provide individuals and organizations with ample 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.

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                  CAS No.                           Chemical name       
------------------------------------------------------------------------
56-23-5...................................  Carbon tetrachloride        
57-14-7...................................  Dimethyl hydrazine1         
60-34-4...................................  Methyl hydrazine1           
62-53-3...................................  Aniline1                    
67-66-3...................................  Chloroform                  
68-12-2...................................  Dimethylformamide           
71-43-2...................................  Benzene                     
74-90-8...................................  Hydrogen cyanide1           
74-93-1...................................  Methyl mercaptan1           
75-09-2...................................  Methylene chloride          
75-21-8...................................  Ethylene oxide1             
75-44-5...................................  Phosgene                    
75-55-8...................................  Propyleneimine              
75-56-9...................................  Propylene oxide             
75-74-1...................................  Tetramethyllead             
75-77-4...................................  Trimethychlorosilane        
75-78-5...................................  Dimethyldichlorosilane1     
75-79-6...................................  Methyltrichlorosilane       
78-82-0...................................  Isobutyronitrile            
79-01-6...................................  Trichloroethylene           
79-21-0...................................  Peracetic acid              
79-22-1...................................  Methy chloroformate         
91-08-7...................................  Toluene 2,6-diisocyanate    
106-89-8..................................  Epichlorohydrin             
107-02-8..................................  Acrolein                    
107-11-9..................................  Allyl amine                 
107-12-0..................................  Propionitrile               
107-15-3..................................  Ethylenediamine             
107-18-6..................................  Allyl alcohol               
107-30-2..................................  Chloromethyl methyl ether   
108-23-6..................................  Isopropyl chloroformate     
108-88-3..................................  Toluene                     
108-91-8..................................  Cyclohexylamine             
109-61-5..................................  Propyl chloroformate        
110-00-9..................................  Furan                       
110-89-4..................................  Piperidine                  
123-73-9..................................  Crotonaldehyde, (E)         
126-98-7..................................  Methacrylonitrile           
127-18-4..................................  Tetrachloroethylene         
151-56-4..................................  Ethyleneimine               
302-01-2..................................  Hydrazine1                  
353-42-4..................................  Boron triflouride compound  
                                             with methyl ether (1:1)    
506-77-7..................................  Cyanogen chloride1          
509-14-8..................................  Tetranitromethane           
540-59-0..................................  1,2-Dichloroethylene1       
584-84-9..................................  Toluene 2,4-diisocyanate    
594-42-3..................................  Perchloromethylmercaptan    
624-83-9..................................  Methyl isocyanate           
811-97-2..................................  HFC 134A (1,1,1,2-          
                                             Tetrafluoroethane)         
814-68-6..................................  Acrylyl chloride            
1330-20-7.................................  Xylenes (mixed)             
1717-00-6.................................  HCFC 141b (1,1-dichloro-1-  
                                             fluoroethane)              
4170-30-3.................................  Crotonaldehyde              
6423-43-4.................................  Propylene glycol dinitrate  
7446-09-5.................................  Sulfur dioxide              
7446-11-9.................................  Sulfur trioxide             
7647-01-0.................................  Hydrogen chloride           
7647-01-0.................................  Hydrochloric acid           
7664-39-3.................................  Hydrogen fluoride1          
7664-41-7.................................  Ammonia                     
7664-93-9.................................  Sulfuric acid               
7697-37-2.................................  Nitric acid1                
7719-12-2.................................  Phosphorus trichloride      
7726-95-6.................................  Bromine                     
7782-41-4.................................  Fluorine1                   
7782-50-5.................................  Chlorine1                   
7783-06-4.................................  Hydrogen sulfide            
7783-60-0.................................  Sulfur tetrafluoride        
7783-81-5.................................  Uranium hexafluoride        
7784-34-1.................................  Arsenous trichloride        
7784-42-1.................................  Arsine1                     
7790-91-2.................................  Chlorine trifluoride        
7803-51-2.................................  Phosphine1                  
8014-95-7.................................  Oleum                       
10025-87-3................................  Phosphorus oxychloride      
10049-04-4................................  Chlorine dioxide            
10102-43-9................................  Nitric oxide                
10294-34-5................................  Boron trichloride           
13463-39-3................................  Nickel carbonyl             
13463-40-6................................  Iron, pentacarbonyl-        
19287-45-7................................  Diborane                    
25323-89-1................................  Trichloroethane             
163702-07-6...............................  Methyl nonafluorobutyl ether
                                             (HFE 7100 component)       
163702-08-7...............................  Methyl nonafluoroisobutyl   
                                             ether (HFE 7100 component) 
MIXTURE...................................  Otto Fuel II (Propylene     
                                             glycol dinitrate major     
                                             component)                 
------------------------------------------------------------------------
\1\Already addressed by NAC/AEGL.                                       

List of Subjects

    Environmental protection, Chemicals, Hazardous substances.

    Dated: May 14, 1997.

William H. Sanders III,

Director, Office of Pollution Prevention and Toxics.
[FR Doc. 97-13327 Filed 5-20-97; 8:45 am]
BILLING CODE 6560-50-F