Skip to content. | Skip to navigation

Personal tools

Navigation

Complaint Arrow Questions or Comments:
tox@tceq.texas.gov
You are here: Home / Toxicology / Development Support Document / Final Development Support Documents (DSDs)

Final Development Support Documents (DSDs)

DSDs detail how Effects Screening Levels (ESLs), inhalation Reference Values (ReVs), and inhalation Unit Risk Factors (URFs) were derived for specific chemicals. This page also links to Fact Sheets which summarize information used by the TCEQ Toxicology Division to develop those values.

New Information The Ethylene Dichloride DSD has been finalized

Hot InformationA new public comment period has begun for Dibutylamine and Diisopropylamine

Click on the substance name to view its DSD. Click on “Fact Sheet” to view summary information about the substance.

magnifying glassDefinitions of ESLs, REVs & AMCVs

 

Files linked from this page are in Portable Document Format (PDF) Adobe Acrobat PDF Document.
(Help with PDF.)

A B C D E F G H I J K L M N O P R S T U V W X Y Z

A

Substance NameChemical Abstract Service Registry Number
(CASRN)
Public Comments
Acetone 67-64-1 Yes
Acrolein 107-02-8 Yes
Acrylonitrile 107-13-1 Yes

Ammonia

7664-41-7 No

Arsenic and Inorganic Arsenic Compounds

7440-38-2
(Arsenic)
Yes

 

Return to top

B

Substance NameChemical Abstract Service Registry Number
(CASRN)
Public Comments
Benzene
71-43-2 Yes
Butadiene, 1,3-
106-99-0 Yes
Butane, All Isomers

n-Butane
Isobutane



106-97-8
75-28-5

Yes
Butene, 1-
106-98-9 Yes
Butene, 2-

cis and trans
cis-butene, -2
trans-butene, -2

 

107-01-7
590-18-1
624-64-6

Yes
Butoxyethanol
111-76-2 Yes
Butyl acetate, n
123-86-4 Yes
Butyraldehyde 123-72-8 Yes

 

Return to top

C - D

Substance NameChemical Abstract Service Registry Number
(CASRN)
Public Comments
Carbon Disulfide
75-15-0 No
Chromic Acid Mist
7738-94-5 No
Chromium
(All Compounds Except Hexavalent Chromium)

Elemental Chromium
Trivalent Chromium

 

 

7440-47-3
16065-83-1

No
Chromium (Hexavalent)
Ammonium dichromate
Calcium chromate
Sodium chromate
Chromium trioxide
Sodium dichromate
Sodium dichromate, dihydrate
Lead chromate
Potassium chromate
Potassium dichromate
Strontium chromate
Zinc chromate

18540-29-9
7789-09-5
13765-19-0
7775-11-3
1333-82-0
10588-01-9
7789-12-0
7758-97-6
7789-00-6
7778-50-9
7789-06-2
13530-65-9

Yes
Crotonaldehyde

trans-crotonaldehyde
cis-crotonaldehyde

4170-30-3

123-73-9
15798-64-8

No
Dichlorobenzene, 1,4-
106-46-7 No
Dichloroethylene, 1,1-
75-35-4 No
Diethylamine
109-89-7 No

 

Return to top

E - H

Substance NameChemical Abstract Service Registry Number
(CASRN)
Public Comments
Ethylbenzene
100-41-4 No
Ethylene
74-85-1 Yes
New TopicEthylene Dichloride
107-06-2 New TopicYes
Ethylene Glycol
107-21-1 Yes
Formaldehyde
50-00-0

Yes

Yes (24-hour)

Hexamethylenediamine
124-09-4 No
Hexane, n-
110-54-3 No
Hydrogen Chloride
7647-01-0 Yes
Hydrogen Fluoride and Other Soluble Inorganic Fluorides
7664-39-3 Yes

 

Return to top

I - M

Substance NameChemical Abstract Service Registry Number
(CASRN)
Public Comments
Isobutene
115-11-7 Yes
Methacrolein
78-85-3 No
Methanol
67-56-1 Yes

Methoxysilanes (Tri- and Tetra-)

Trimethoxysilane
Methyltrimethoxysilane
Vinyltrimethoxysilane
3-Chloropropyltrimethoxysilane
Tetramethoxysilane

 

 

2487-90-3
1185-55-3
2768-02-7
2530-87-2
681-84-5

Yes
Methyl Amyl Ketone
110-43-0 No
Methyl Ethyl Ketone
78-93-3 No
Methylene Chloride
75-09-2 No
Monoethanolamine
141-43-5 No

 

Return to top

N - R

Substance NameChemical Abstract Service Registry Number
(CASRN)
Public Comments

Nickel and Inorganic Nickel Compounds

Nickel
Nickel Sulfate
Nickel Subsulfide
Nickel Oxide
Nickel Chloride

 

 

7440-02-0
7786-81-4
12035-72-2
1313-99-1
7718-54-9

Yes
Pentane, All Isomers

n-Pentane
Isopentane
Neopentane

 

109-66-0
78-78-4
463-82-1

Yes
Pentene, All Isomers

1-pentene
c-2-pentene
t-2-pentene

 

109-67-1
627-20-3
646-04-8

No
Phenol

108-95-2

No
Propionaldehyde
123-38-6 Yes

 

Return to top

S - T

Substance NameChemical Abstract Service Registry Number
(CASRN)
Public Comments
Silica, Amorphous and Other Non-Crystalline Forms

fused
precipitated silica and silica gel
pyrogenic colloidal silica
silica fume
synthetic amorphous silica
uncalcined diatomaceous earth



60676-86-0
112926-00-8
112945-52-5
69012-64-2
7631-86-9
61790-53-2
Yes

Silica, Crystalline Forms

cristobalite
quartz
tridymite
tripoli



14464-46-1
14808-60-7
15468-32-3
1317-95-9

Yes
Styrene
100-42-5 Yes
Tetrachloroethylene(PCE)
127-18-4 Yes
Texanol
25265-77-4 Yes
Toluene
108-88-3 Yes
Trichloroethane, 1,1,1-
71-55-6 No
Trimethylbenzenes (TMB)

1,2,3-TMB
1,2,4-TMB
1,3,5-TMB
Mixed Isomers

 

526-73-6
95-63-6
108-67-8
25551-13-7

No

 

Return to top

U - Z

Substance NameChemical Abstract Service Registry Number
(CASRN)
Public Comments
Vinyl Acetate
108-05-4 Yes
Vinyl Chloride
75-01-4 No
Vinylcyclohexene, 4-
100-40-3 Yes
Xylenes

mixture
m-Xylene
o-Xylene
p-Xylene

 

1330-20-7
108-38-3
95-47-6
106-42-3

Yes

Return to top