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Access Acute Exposure Guideline Levels (AEGLs) Values

On this page you will be able to access individual Acute Exposure Guideline Level (AEGLs) values that are intended to protect most individuals in the general population, including those that might be particularly susceptible to the harmful effects of the chemicals.

Find AEGL values in the table below using the chemical name or its CAS number. The AEGL values page will also have a link to the appropriate technical support document.

If only a chemical's synonym is known, it is necessary to first find that chemical's CAS number to access the AEGL entry. To find the CAS number, enter the chemical name followed by CAS in any web search engine.

CAS No.

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Chemical Name

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Compiled AEGL values

AEGL Values

Final AEGLs contained in this database have been published by the National Research Council, National Academy of Sciences (NRC/NAS). 

CAS NO. Chemical Name
No CAS No. Available Magnesium aluminum phosphide
56-23-5 Carbon tetrachloride
57-14-7 1,1- Dimethyl hydrazine
60-34-4 Methyl hydrazine
62-53-3 Aniline
67-66-3 Chloroform
68-12-2 N,N-Dimethylformamide
74-83-9 Methyl bromide
74-87-3 Methyl chloride
74-90-8 Hydrogen cyanide
74-93-1 Methyl mercaptan
74-98-6 Propane
75-01-4 Vinyl chloride
75-05-8 Acetonitrile
75-08-1 Ethyl mercaptan
75-15-0 Carbon disulfide
75-21-8 Ethylene oxide
75-44-5 Phosgene
75-54-7 Methyl dichlorosilane
75-55-8 Propyleneimine
75-56-9 Propylene oxide
75-77-4 Trimethylchlorosilane
75-78-5 Dichlorodimethylsilane
75-79-6 Trichloromethyl silane
75-86-5 Acetone cyanohydrin
75-94-5 Vinyltrichlorosilane
77-81-6 Nerve Agent GA (Tabun)
78-82-0 Isobutyronitrile
78-85-3 Methacrylaldehyde
78-93-3 Methyl ethyl ketone
78-95-5 Chloroacetone
79-11-8 Monochloroacetic acid
79-21-0 Peracetic Acid
80-10-4 Diphenyldichlorosilane
91-08-7 2,6-Toluenediisocyanate
95-63-6 1,2,4-Trimethylbenzene
96-64-0 Agent GD (Soman)
98-13-5 Phenyltrichlorosilane
100-47-0 Benzonitrile
103-71-9 Phenyl isocyanate
106-89-8 Epichlorohydrin
106-97-8 Butane
107-02-8 Acrolein
107-07-3 Ethylene chlorohydrin (2-Chloroethanol)
107-11-9 Allyl Amine
107-12-0 Propionitrile
107-13-1 Acrylonitrile
107-14-2 Chloroacetonitrile
107-15-3 Ethylene diamine
107-18-6 Allyl alcohol
107-19-7 Propargyl alcohol
107-20-0 Chloroacetaldehyde
107-30-2 Chloromethyl methyl ether
107-37-9 Allyltrichlorosilane
107-44-8 Agent GB (Sarin)
107-72-2 Amyltrichlorosilane
108-05-4 Vinyl acetate
108-67-8 1,3,5-Trimethylbenzene (Mesitylene)
108-88-3 Toluene
108-90-7 Chlorobenzene
108-91-8 Cyclohexylamine
108-95-2 Phenol
108-98-5 Phenyl Mercaptan
109-77-3 Malononitrile
109-90-0 Ethyl isocyanate
110-00-9 Furan
110-54-3 Hexane
110-89-4 Piperidine
111-36-4 n-Butyl isocyanate
112-04-9 Octadecyltrichlorosilane
115-21-9 Ethyltrichlorosilane
116-14-3 Tetrafluoroethylene
123-73-9 trans-Crotonaldehyde
124-63-0 Methansulfonyl chloride
124-70-9 Methylvinyldichlorosilane
126-98-7 Methacrylonitrile
141-57-1 Propyltrichlorosilane
141-59-3 t-Octyl mercaptan
143-33-9 Sodium cyanide
151-50-8 Potassium cyanide
151-56-4 Ethyleneimine
156-59-2 cis-1,2-Dichloroethylene
156-60-5 trans-1,2-Dichloroethylene
302-01-2 Hydrazine
329-99-7 Agent GF
353-50-4 Carbonyl fluoride
460-19-5 Cyanogen
463-51-4 Ketene
505-60-2 Sulfur Mustard
509-14-8 Tetranitromethane
526-73-8 1,2,3-Trimethylbenzene
540-73-8 1,2-Dimethyl hydrazine
541-25-3 Lewisite 1, including mixtures with Lewisite 2 (CAS No. 40334-69-8) and Lewisite 3 (CAS No. 40334-70-1)
542-88-1 Bis (chloromethyl) ether
556-61-6 Methyl isothiocyanate
584-84-9 2,4-Toluene Diisocyanate
592-01-8 Calcium cyanide
594-42-3 Perchloromethyl mercaptan
598-31-2 Bromoacetone
624-83-9 Methyl isocyanate
630-08-0 Carbon monoxide
674-82-8 Diketene
681-84-5 Tetramethoxy silane
684-16-2 Hexafluoroacetone
811-97-2 HFC 134A
928-65-4 Hexyltrichlorosilane
993-00-0 Methyl chlorosilane
1066-35-9 Dimethylchlorosilane
1305-99-3 Calcium phosphide
1314-84-7 Zinc phosphide
1330-20-7 Xylenes
1498-51-7 Ethylphosphorodichloridate
1558-25-4 Chloromethyltrichlorosilane
1717-00-6 HCFC 141b
1719-53-5 Diethyldichlorosilane
2487-90-3 Trimethoxysilane
2698-41-1 Tear Gas
3173-53-3 Cyclohexyl isocyanate
3282-30-2 Trimethyl acetyl chloride
4109-96-0 Dichlorosilane
4170-30-3 cis-Crotonaldehyde
4484-72-4 Dodecyltrichlorosilane
5283-66-9 Octyltrichlorosilane
5283-67-0 Nonyltrichlorosilane
6423-43-4 Propylene Glycol Dinitrate
6581-06-2 BZ
7446-09-5 Sulfur Dioxide
7521-80-4 Butyltrichlorosilane
7616-94-6 Perchloryl fluoride
7637-07-2 Boron trifluoride
7647-01-0 Hydrogen chloride
7664-39-3 Hydrogen fluoride
7664-41-7 Ammonia
7697-37-2 Nitric Acid
7719-12-2 Phosphorus Trichloride
7726-95-6 Bromine
7782-41-4 Fluorine
7782-50-5 Chlorine
7783-06-4 Hydrogen sulfide
7783-07-5 Hydrogen selenide
7783-41-7 Oxygen difluoride
7783-80-4 Tellurium hexafluoride
7783-81-5 Uranium hexafluoride
7784-42-1 Arsine
7787-71-5 Bromine trifluoride
7789-30-2 Bromine pentafluoride
7790-91-2 Chlorine trifluoride
7791-25-5 Sulfuryl chloride
7803-51-2 Phosphine
8008-20-6 Jet Fuel (JP-5)
10025-78-2 Trichlorosilane
10025-87-3 Phosphorus oxychloride
10026-04-7 Tetrachlorosilane
10035-10-6 Hydrogen Bromide
10049-04-4 Chlorine dioxide
10102-43-9 Nitric oxide
10102-44-0 Nitrogen dioxide
10294-33-4 Boron tribromide
10544-72-6 Nitrogen tetroxide
12057-74-8 Magnesium Phosphide
12058-85-4 Sodium Phosphide
12504-13-1 Strontium Phosphide
13463-39-3 Nickel carbonyl
13463-40-6 Iron pentacarbonyl
13637-63-3 Chlorine pentafluoride
13863-41-7 Bromine chloride
19287-45-7 Diborane
19624-22-7 Pentaborane
20770-41-6 Potassium Phosphide
20859-73-8 Aluminum phosphide
27137-85-5 Dichlorophenyltrichlorosilane
50782-69-9 Agent VX
70892-10-3 Jet Fuel (JP-8)
106602-80-6 Otto Fuel (mainly Propylene Glycol Dinitrate 6423-43-4)
163702-07-6 and 163702-08-7 (HFE-7100) Methyl nonafluorobutyl ether (40%) and Methyl nonafluoroisobutyl ether (60%)

Interim AEGLs are established following review and consideration by the National Advisory Committee for AEGLs (NAC/AEGL) of public comments on Proposed AEGLs. Interim AEGLs are available for use by organizations while awaiting NRC/NAS peer review and publication of Final AEGLs. Changes to interim values and Technical Support Documents may occur prior to publication of Final AEGL values. In some cases, revised interim values may be posted on this website, but the revised Interim Technical Support Document for the chemical may be subject to change. (Further information is available through AEGL Process).

     
CAS NO. Chemical Name
50-00-0 Formaldehyde
51-75-2 Nitrogen Mustard-2
56-38-2 Parathion
67-56-1 Methanol
67-64-1 Acetone
71-43-2 Benzene
71-55-6 1,1,1-Trichloroethane
74-89-5 Methyl amine
75-04-7 Ethyl amine
75-07-0 Acetaldehyde
75-09-2 Methylene chloride
75-50-3 Trimethyl amine
76-06-2 Chloropicrin
77-78-1 Dimethyl sulfate
78-94-4 Methyl vinyl ketone
79-01-6 Trichloroethylene
79-04-9 Chloroacetyl chloride
79-10-7 Acrylic acid
79-22-1 Methyl chloroformate
79-36-7 Dichloroacetyl chloride
79-38-9 Trifluorochloroethylene
79-41-4 Methacrylic acid
80-62-6 Methyl methacrylate
92-52-4 Biphenyl
98-82-8 Cumene
100-41-4 Ethylbenzene
100-42-5 Styrene
106-88-7 1,2-butylene oxide
106-93-4 Dibromoethane
106-99-0 1,3-Butadiene
107-05-1 Allyl chloride
108-23-6 Isopropyl chloroformate
109-61-5 Propyl chloroformate
116-15-4 Hexafluoropropylene
121-45-9 Trimethyl phosphite
121-75-5 Malathion
123-38-6 Propionaldehyde
123-91-1 1,4-Dioxane
124-40-3 Dimethylamine
127-18-4 Tetrachloroethylene
140-88-5 Ethyl acrylate
141-32-2 n-Butyl acrylate
298-00-0 Methylparathion
298-02-2 Phorate
382-21-8 Perfluoroisobutylene
463-58-1 Carbonyl Sulfide
501-53-1 Benzyl chloroformate
538-07-8 Nitrogen Mustard-1
541-41-3 Ethyl chloroformate
543-27-1 Isobutyl Chloroformate
555-77-1 Nitrogen Mustard-3
578-94-9 Adamsite
592-34-7 n-Butyl chloroformate
593-89-5 Methyldichloroarsine
598-14-1 Ethyldichloroarsine
696-28-6 Phenyl dichloroarsine
712-48-1 Diphenylchloroarsine
868-85-9 Dimethyl phosphite
1327-53-3 Arsenic trioxide
1634-04-4 Methyl-tertiary-butyl ether (MTBE)
1794-86-1 Phosgene oxime
1885-14-9 Phenyl chloroformate
2699-79-8 Sulfuryl fluoride
2937-50-0 Allyl chloroformate
2941-64-2 Ethylchlorothioformate
7439-97-6 Mercury Vapor
7440-43-9 Cadmium
7446-11-9 Sulfur trioxide
7550-45-0 Titanium tetrachloride
7664-93-9 Sulfuric acid
7719-09-7 Thionyl chloride
7782-65-2 Germane
7783-54-2 Nitrogen trifluoride
7783-61-1 Silicon tetrafluoride
7783-79-1 Selenium hexafluoride
7790-94-5 Chlorosulfonic acid
7803-52-3 Stibine
7803-62-5 Silane
8014-95-7 Oleum
10025-67-9 Disulfur dichloride
10034-85-2 Hydrogen Iodide
17462-58-7 sec-Butyl chloroformate
20816-12-0 Osmium tetroxide
24468-13-1 2-Ethylhexylchloroformate

Proposed AEGLs are published in the Federal Register for public comment following review and concurrence of Draft AEGLs by the NAC/AEGL Committee. The comment period is 30 days from the date Proposed AEGLs are published in the Federal Register. (Further information is available through AEGL Process).

CAS NO. Chemical Name
62-73-7 Dichlorvos
74-88-4 Methyl iodide
116-06-3 Aldicarb
141-66-2 Dicrotophos
6923-22-4 Monocrotophos
7723-14-0 Red Phosphorus
8006-61-9 Automotive Gasoline (Unleaded)
13171-21-6 Phosphamidon
10265-92-6 Methamidophos
16752-77-5 Methomyl
22224-92-6 Fenamiphos
23135-22-0 Oxamyl

Holding Status AEGLs have been reviewed by the NAC/AEGL Committee and are on hold due to insufficient data to develop AEGL values.

CAS NO. Chemical Name
62-74-7 Sodium fluoroacetate
62-74-8 Fluoroacetate salts
75-36-5 Acetyl Chloride
75-74-1 Tetramethyl lead
76-02-8 Trichloroacetyl Chloride
77-10-0 Phencyclidine
80-12-6 Tetramethylene disulfotetramine
80-63-7 Methyl 2-chloroacrylate
97-02-9 2,4-Dinitroaniline
107-49-3 Tetraethyl pyrophosphate
110-78-1 n-Propyl isocyanate
144-49-0 Monofluoroacetic acid
151-38-2 Methoxyethyl mercuric acetate
371-62-0 Ethylene fluorohydrin
453-18-9 Methyl fluoroacetate
463-71-8 Thiophosgene
503-38-8 Diphosgene
506-77-4 Cyanogen chloride
556-64-9 Methyl thiocyanate
561-27-3 Diacetyl morphine
814-68-6 Acrylyl chloride
950-35-6 Methyl paroxon
993-43-1 Ethyl phosphonothioic dichloride
1303-28-2 Arsenic pentoxide
1498-40-4 Ethyl phosphonous dichloride
1609-86-5 t-butyl isocyanate
1737-93-5 3,5-dichloro-2,4,6-trifluoropyridine
1795-48-8 Isopropyl isocyanate
1873-29-6 Isobutyl isocyanate
2696-92-6 Nitrosyl chloride
354-32-5 Trifluoroacetyl chloride
4300-97-4 Chloropivaloyl chloride
4685-14-7 Paraquat
6427-21-0 Methoxymethyl isocyanate
7775-14-6 Sodium dithionite
7783-60-0 Sulfur tetrafluoride
7783-82-6 Tungsten hexafluoride
7784-34-1 Arsenic trichloride
7786-34-7 Mevinphos
7789-21-2 Fluorosulfonic acid
7803-49-08 Hydroxylamine
7803-54-5 Magnesium diamide
9009-86-3 Ricin
10294-34-5 Boron Trichloride
10544-73-7 Nitrogen trioxide
10545-99-0 Sulfur dichloride