Report image
Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
Toxicity Values Sources: C = California EPA; D = ATSDR Minimal Risk Level (MRL); H = Health Effect Assessment Summary Table (HEAST); I = Integrated Risk Information System (IRIS); Id = value derived from IRIS toxicity value; M = EPA Drinking Water Regulations and Health Advisories; N = EPA NCEA Provisional Value; O = EPA Office of Pesticide Programs Human Health Benchmarks for Pesticides; P = EPA Provisional Peer Reviewed Toxicity Value; S = Surrogate; X = EPA Provisional Peer Reviewed Toxicity Value Appendix
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
ACENAPHTHENE
000083-32-9
0.06
I
      
ACENAPHTHYLENE
000208-96-8
0.06
S (Acenaphthene Surrogate)
      
ACEPHATE
030560-19-1
0.0003
O
      
ACETALDEHYDE
000075-07-0
  
0.009
I
  
2.2E-06
I
ACETONE
000067-64-1
0.9
I
      
ACETONITRILE
000075-05-8
  
0.06
I
    
ACETOPHENONE
000098-86-2
0.1
I
      
ACETYLAMINOFLUORENE, 2- (2AAF)
000053-96-3
    
3.8
C
0.0013
C
ACROLEIN
000107-02-8
0.0005
I
2E-05
I
    
ACRYLAMIDE
000079-06-1
0.002
I
0.006
I
0.5
I
0.0001
I
ACRYLIC ACID
000079-10-7
0.5
I
0.0002
P
    
ACRYLONITRILE
000107-13-1
0.00009
D
0.002
I
0.54
I
6.8E-05
I
ALACHLOR
015972-60-8
0.01
I
  
0.056
C
  
ALDICARB
000116-06-3
0.001
I
      
ALDICARB SULFONE
001646-88-4
0.001
I
      
ALDICARB SULFOXIDE
001646-87-3
0.001
M
      
ALDRIN
000309-00-2
3E-05
I
  
17
I
0.0049
I
ALLYL ALCOHOL
000107-18-6
0.004
P
0.0001
X
    
ALUMINUM
007429-90-5
1
P
0.005
P
    
AMETRYN
000834-12-8
0.009
I
      
AMINOBIPHENYL, 4-
000092-67-1
    
21
C
0.006
C
AMITROLE
000061-82-5
    
0.94
C
0.00027
C
AMMONIA
007664-41-7
  
0.5
I
    
AMMONIUM SULFAMATE
007773-06-0
0.2
I
      
ANILINE
000062-53-3
0.007
P
0.001
I
0.0057
I
1.6E-06
C
ANTHRACENE
000120-12-7
0.3
I
      
SSRS_LRP_053 Ver 1.2
Page 1 of 15
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Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
ANTIMONY
007440-36-0
0.0004
I
0.0003
D
    
ARSENIC
007440-38-2
6E-05
I
1.5E-05
C
32
I
0.0043
I
ATRAZINE
001912-24-9
0.003
D
  
0.23
C
  
AZINPHOS-METHYL (GUTHION)
000086-50-0
0.0015
O
0.01
D
    
BARIUM AND COMPOUNDS
007440-39-3
0.2
I
0.0005
H
    
BAYGON (PROPOXUR)
000114-26-1
0.004
I
      
BENOMYL
017804-35-2
0.05
I
  
0.0024
O
  
BENTAZON
025057-89-0
0.03
I
      
BENZENE
000071-43-2
0.004
I
0.03
I
0.055
I
7.8E-06
I
BENZIDINE
000092-87-5
0.003
I
  
230
I
0.067
I
BENZO[A]ANTHRACENE
000056-55-3
    
0.7
X
0.00011
C
BENZO[A]PYRENE
000050-32-8
3E-4
I
2E-6
I
1
I
6E-4
I
BENZO[B]FLUORANTHENE
000205-99-2
    
1.2
C
0.00011
C
BENZO[GHI]PERYLENE
000191-24-2
0.06
S (Acenaphthene Surrogate)
      
BENZO[K]FLUORANTHENE
000207-08-9
    
1.2
C
0.00011
C
BENZOIC ACID
000065-85-0
4
I
      
BENZOTRICHLORIDE
000098-07-7
    
13
I
  
BENZYL ALCOHOL
000100-51-6
0.1
P
      
BENZYL CHLORIDE
000100-44-7
0.002
P
0.001
P
0.17
I
4.9E-05
C
BERYLLIUM
007440-41-7
0.002
I
2E-05
I
  
0.0024
I
BETA PROPIOLACTONE
000057-57-8
    
14
C
0.004
C
BHC, ALPHA
000319-84-6
0.0009
D
  
6.3
I
0.0018
I
BHC, BETA-
000319-85-7
    
1.8
I
0.00053
I
BHC, GAMMA (LINDANE)
000058-89-9
0.00001
D
  
1.1
C
0.00031
C
BIPHENYL, 1,1-
000092-52-4
0.5
I
0.0004
X
0.008
I
  
BIS(2-CHLOROETHOXY)METHANE
000111-91-1
0.003
P
      
BIS(2-CHLOROETHYL)ETHER
000111-44-4
    
1.1
I
0.00033
I
BIS(2-CHLORO-ISOPROPYL)ETHER
000108-60-1
0.04
I
      
SSRS_LRP_053 Ver 1.2
Page 2 of 15
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Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
BIS(CHLOROMETHYL)ETHER
000542-88-1
    
220
I
0.062
I
BIS[2-ETHYLHEXYL] PHTHALATE
000117-81-7
0.02
I
  
0.014
I
2.4E-06
C
BISPHENOL A
000080-05-7
0.05
I
      
BORON AND COMPOUNDS
007440-42-8
0.2
I
      
BROMACIL
000314-40-9
0.1
M
      
BROMOBENZENE
108-86-1
0.008
I
0.06
I
    
BROMOCHLOROMETHANE
000074-97-5
0.01
M
0.04
X
    
BROMODICHLOROMETHANE
000075-27-4
0.008
P
  
0.062
I
3.7E-05
C
BROMOMETHANE
000074-83-9
0.0014
I
0.005
I
    
BROMOXYNIL
001689-84-5
0.015
O
  
0.103
O
  
BROMOXYNIL OCTANOATE
001689-99-2
0.015
O
  
0.103
O
  
BUTADIENE, 1,3-
000106-99-0
  
0.002
I
0.6
C
3E-05
I
BUTYL ALCOHOL, N-
000071-36-3
0.1
I
      
BUTYLATE
002008-41-5
0.05
I
      
BUTYLBENZENE, N-
000104-51-8
0.05
P
      
BUTYLBENZENE, SEC-
000135-98-8
0.1
X
      
BUTYLBENZENE, TERT-
000098-06-6
0.1
X
      
BUTYLBENZYL PHTHALATE
000085-68-7
0.2
I
  
0.0019
P
  
CADMIUM
007440-43-9
0.0001
D
0.00001
D
  
0.0018
I
CAPTAN
000133-06-2
0.13
I
  
0.0023
C
6.6E-07
C
CARBARYL
000063-25-2
0.1
I
      
CARBOFURAN
001563-66-2
0.005
I
      
CARBON DISULFIDE
000075-15-0
0.1
I
0.7
I
    
CARBON TETRACHLORIDE
000056-23-5
0.004
I
0.1
I
0.07
I
0.000006
I
CARBOXIN
005234-68-4
0.1
I
      
CHLORAMBEN
000133-90-4
0.015
I
      
CHLORDANE
000057-74-9
0.0005
I
0.0007
I
0.35
I
0.0001
I
CHLORDANE (TECHNICAL)
012789-03-6
0.0005
I
0.0007
I
0.35
I
0.0001
I
SSRS_LRP_053 Ver 1.2
Page 3 of 15
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Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
CHLORO-1,1-DIFLUOROETHANE, 1-
000075-68-3
  
50
I
    
CHLORO-1-PROPENE, 3- (ALLYL CHLORIDE)
000107-05-1
  
0.001
I
0.021
C
6E-06
C
CHLOROACETALDEHYDE
000107-20-0
    
0.27
X
  
CHLOROACETOPHENONE, 2-
000532-27-4
  
0.00003
I
    
CHLOROANILINE, P-
000106-47-8
0.0005
P
  
0.2
P
  
CHLOROBENZENE
000108-90-7
0.02
I
0.05
P
    
CHLOROBENZILATE
000510-15-6
0.02
I
  
0.11
C
3.1E-05
C
CHLOROBUTANE, 1-
000109-69-3
0.04
P
      
CHLORODIBROMOMETHANE
000124-48-1
0.02
I
  
0.084
I
  
CHLORODIFLUOROMETHANE
000075-45-6
  
50
I
    
CHLOROETHANE
000075-00-3
  
4
P
    
CHLOROFORM
000067-66-3
0.01
I
0.3
C
0.031
C
2.3E-05
I
CHLORONAPHTHALENE, 2-
000091-58-7
0.08
I
      
CHLORONITROBENZENE, P-
000100-00-5
0.0007
P
0.002
P
0.06
P
  
CHLOROPHENOL, 2-
000095-57-8
0.005
I
      
CHLOROPRENE
000126-99-8
  
0.02
I
  
0.0003
I
CHLOROTHALONIL
001897-45-6
0.015
I
  
0.017
C
  
CHLOROTOLUENE, O-
000095-49-8
0.02
I
      
CHLOROTOLUENE, P-
000106-43-4
0.02
X
      
CHLORPYRIFOS
002921-88-2
0.001
D
      
CHLORSULFURON
064902-72-3
0.05
O
      
CHLORTHAL-DIMETHYL (DACTHAL) (DCPA)
001861-32-1
0.01
I
      
CHROMIUM III
016065-83-1
1.5
I
      
CHROMIUM VI
018540-29-9
0.0009
I
3E-05
I
0.27
I
1.8E-02
I
CHRYSENE
000218-01-9
    
0.12
C
1.1E-05
C
COBALT
007440-48-4
0.0003
P
6E-06
P
  
0.009
P
COPPER
007440-50-8
0.0325
H (1.3 mg/L)
      
CRESOL(S)
001319-77-3
0.1
D
0.6
C
    
SSRS_LRP_053 Ver 1.2
Page 4 of 15
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Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
CRESOL, 0- (METHYLPHENOL, 2-)
000095-48-7
0.05
I
      
CRESOL, M (METHYLPHENOL, 3-)
000108-39-4
0.05
I
      
CRESOL, P (METHYLPHENOL, 4-)
000106-44-5
0.02
P (Cresol, p- is known to be more toxic than o- and m- isomers.)
      
CRESOL, P-CHLORO-M-
000059-50-7
0.1
X
      
CROTONALDEHYDE
004170-30-3
0.001
S (trans-Crotonaldehyde Surrogate)
      
CROTONALDEHYDE, TRANS-
000123-73-9
0.001
P
      
CUMENE
000098-82-8
0.1
I
0.4
I
    
CYANAZINE
021725-46-2
0.002
M
      
CYANIDE, TOTAL
000057-12-5
0.0006
I
      
CYCLOHEXANE
000110-82-7
  
6
I
    
CYCLOHEXANONE
000108-94-1
5
I
0.7
P
    
CYFLUTHRIN
068359-37-5
0.025
I
      
CYROMAZINE
066215-27-8
0.5
O
      
DDD, 4,4'-
000072-54-8
0.0005
D
  
0.24
I
6.9E-05
C
DDE, 4,4'-
000072-55-9
0.0005
D
  
0.34
I
9.7E-05
C
DDT, 4,4'-
000050-29-3
0.0005
I
  
0.34
I
9.7E-05
I
DI(2-ETHYLHEXYL)ADIPATE
000103-23-1
0.6
I
  
0.0012
I
  
DIALLATE
002303-16-4
    
0.061
H
  
DIAMINOTOLUENE, 2,4-
000095-80-7
    
4
C
0.0011
C
DIAZINON
000333-41-5
0.0007
D
      
DIBENZO[A,H]ANTHRACENE
000053-70-3
    
4.1
C
0.0012
C
DIBENZOFURAN
000132-64-9
0.001
X
      
DIBROMO-3-CHLOROPROPANE, 1,2-
000096-12-8
0.0002
P
0.0002
I
0.8
P
0.006
P
DIBROMOBENZENE, 1,4-
000106-37-6
0.01
I
      
DIBROMOETHANE, 1,2- (ETHYLENE DIBROMIDE)
000106-93-4
0.009
I
0.009
I
2
I
0.0006
I
DIBROMOMETHANE
000074-95-3
  
0.004
X
    
DIBUTYL PHTHALATE, N-
000084-74-2
0.1
I
      
DICAMBA
001918-00-9
0.03
I
      
SSRS_LRP_053 Ver 1.2
Page 5 of 15
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Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
DICHLORO-2-BUTENE, 1,4-
000764-41-0
      
0.0042
P
DICHLORO-2-BUTENE, TRANS-1,4-
000110-57-6
      
0.0042
P
DICHLOROACETIC ACID
000079-43-6
0.004
I
  
0.05
I
  
DICHLOROBENZENE, 1,2-
000095-50-1
0.09
I
0.2
H
    
DICHLOROBENZENE, 1,3-
000541-73-1
0.09
M
      
DICHLOROBENZENE, P-
000106-46-7
0.07
D
0.8
I
0.0054
C
1.1E-05
C
DICHLOROBENZIDINE, 3,3'-
000091-94-1
    
0.45
I
0.00034
C
DICHLORODIFLUOROMETHANE (FREON 12)
000075-71-8
0.2
I
0.1
X
    
DICHLOROETHANE, 1,1-
000075-34-3
0.2
P
  
0.0057
C
1.6E-06
C
DICHLOROETHANE, 1,2-
000107-06-2
0.006
X
0.007
P
0.091
I
2.6E-05
I
DICHLOROETHYLENE, 1,1-
000075-35-4
0.05
I
0.2
I
    
DICHLOROETHYLENE, CIS-1,2-
000156-59-2
0.002
I
0.04
X
    
DICHLOROETHYLENE, TRANS-1,2-
000156-60-5
0.02
I
0.04
X
    
DICHLOROMETHANE (METHYLENE CHLORIDE)
000075-09-2
0.006
I
0.6
I
0.002
I
1E-08
I
DICHLOROPHENOL, 2,4-
000120-83-2
0.003
I
      
DICHLOROPHENOXYACETIC ACID, 2,4- (2,4-D)
000094-75-7
0.01
I
      
DICHLOROPROPANE, 1,2-
000078-87-5
0.04
P
0.004
I
0.037
P
0.0000037
P
DICHLOROPROPENE, 1,3-
000542-75-6
0.03
I
0.02
I
0.1
I
4E-06
I
DICHLOROPROPIONIC ACID (DALAPON), 2,2-
000075-99-0
0.03
I
      
DICHLORVOS
000062-73-7
0.0005
I
0.0005
I
0.29
I
8.3E-05
C
DICYCLOPENTADIENE
000077-73-6
0.08
P
0.0003
X
    
DIELDRIN
000060-57-1
0.00005
I
  
16
I
0.0046
I
DIETHANOLAMINE
000111-42-2
0.002
P
0.0002
P
    
DIETHYL PHTHALATE
000084-66-2
0.8
I
      
DIFLUBENZURON
035367-38-5
0.02
I
      
DIISOPROPYL METHYLPHOSPHONATE
001445-75-6
0.08
I
      
DIMETHOATE
000060-51-5
0.0022
O
      
DIMETHOXYBENZIDINE, 3,3-
000119-90-4
    
1.6
P
  
SSRS_LRP_053 Ver 1.2
Page 6 of 15
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Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
DIMETHRIN
000070-38-2
0.3
M
      
DIMETHYL METHYLPHOSPHONATE
000756-79-6
0.06
P
  
0.0017
P
  
DIMETHYLAMINOAZOBENZENE, P-
000060-11-7
    
4.6
C
0.0013
C
DIMETHYLANILINE, N,N-
000121-69-7
0.002
I
  
0.027
P
  
DIMETHYLBENZIDINE, 3,3-
000119-93-7
    
11
P
  
DIMETHYLPHENOL, 2,4-
000105-67-9
0.02
I
      
DINITROBENZENE, 1,3-
000099-65-0
0.0001
I
      
DINITRO-O-CRESOL, 4,6-
000534-52-1
0.00008
X
      
DINITROPHENOL, 2,4-
000051-28-5
0.002
I
      
DINITROTOLUENE, 2,4-
000121-14-2
0.002
I
  
0.31
C
8.9E-05
C
DINITROTOLUENE, 2,6- (2,6-DNT)
000606-20-2
0.0003
X
  
1.5
P
  
DINOSEB
000088-85-7
0.001
I
      
DIOXANE, 1,4-
000123-91-1
0.03
I
0.03
I
0.1
I
5e-06
I
DIPHENAMID
000957-51-7
0.03
I
      
DIPHENYLAMINE
000122-39-4
0.1
O
      
DIPHENYLHYDRAZINE, 1,2-
000122-66-7
    
0.8
I
0.00022
I
DIQUAT
002764-72-9
0.0022
I
      
DISULFOTON
000298-04-4
4E-05
I
      
DITHIANE, 1,4-
000505-29-3
0.01
I
      
DIURON
000330-54-1
0.002
I
      
ENDOSULFAN
000115-29-7
0.006
I
      
ENDOSULFAN I (ALPHA)
000959-98-8
0.006
S (Endosulfan Surrogate)
      
ENDOSULFAN II (BETA)
033213-65-9
0.006
S (Endosulfan Surrogate)
      
ENDOSULFAN SULFATE
001031-07-8
0.006
S (Endosulfan Surrogate)
      
ENDOTHALL
000145-73-3
0.02
I
      
ENDRIN
000072-20-8
0.0003
I
      
EPICHLOROHYDRIN
000106-89-8
0.006
P
0.001
I
0.0099
I
1.2E-06
I
ETHEPHON
016672-87-0
0.005
I
      
SSRS_LRP_053 Ver 1.2
Page 7 of 15
Report image
Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
ETHION
000563-12-2
0.0005
I
      
ETHOXYETHANOL, 2- (EGEE)
000110-80-5
0.09
P
0.04
P
    
ETHYL ACETATE
000141-78-6
0.7
P
0.07
P
    
ETHYL ACRYLATE
000140-88-5
0.005
P
0.008
P
    
ETHYL BENZENE (ETHYLBENZENE)
000100-41-4
0.05
P
1
I
0.011
C
2.5E-06
C
ETHYL DIPROPYLTHIOCARBAMATE, S- (EPTC)
000759-94-4
0.05
O
      
ETHYL ETHER
000060-29-7
0.2
I
      
ETHYL METHACRYLATE
000097-63-2
  
0.3
P
    
ETHYLENE CHLORHYDRIN
000107-07-3
0.02
P
      
ETHYLENE GLYCOL
000107-21-1
0.8
D
0.4
C
    
ETHYLENE THIOUREA (ETU)
000096-45-7
8E-05
I
  
0.045
C
1.3E-05
C
ETHYLP-NITROPHENYL PHENYLPHOSPHOROTHIOATE
002104-64-5
1E-05
I
      
FENAMIPHOS
022224-92-6
0.00025
I
      
FENVALERATE (PYDRIN)
051630-58-1
0.025
I
      
FLUOMETURON
002164-17-2
0.013
I
      
FLUORANTHENE
000206-44-0
0.04
I
      
FLUORENE
000086-73-7
0.04
I
      
FLUORIDE
016984-48-8
0.04
C
0.013
C
    
FLUOROTRICHLOROMETHANE (FREON 11)
000075-69-4
0.3
I
      
FONOFOS
000944-22-9
0.002
I
      
FORMALDEHYDE
000050-00-0
0.2
I
0.007
I
0.021
C
1.1E-05
I
FORMIC ACID
000064-18-6
0.9
P
0.0003
X
    
FOSETYL-AL
039148-24-8
2.5
O
      
FURAN
000110-00-9
0.001
I
      
FURFURAL
000098-01-1
0.003
I
0.05
H
0.0349
O
  
GLYPHOSATE
001071-83-6
0.1
I
      
HEPTACHLOR
000076-44-8
0.0001
D
  
4.5
I
0.0013
I
HEPTACHLOR EPOXIDE
001024-57-3
1.3E-05
I
  
9.1
I
0.0026
I
SSRS_LRP_053 Ver 1.2
Page 8 of 15
Report image
Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
HEXACHLOROBENZENE
000118-74-1
0.00001
P
  
1.6
I
0.00046
I
HEXACHLOROBUTADIENE
000087-68-3
0.001
P
  
0.078
I
2.2E-05
I
HEXACHLOROCYCLOPENTADIENE
000077-47-4
0.006
I
0.0002
I
    
HEXACHLOROETHANE
000067-72-1
0.0007
I
0.03
I
0.04
I
0.000011
C
HEXAFLUOROPROPYLENE OXIDE (HFPO) AMMONIUM SALT (GENX)
062037-80-3
3E-06
M
      
HEXAFLUOROPROPYLENE OXIDE (HFPO) DIMER ACID (GENX)
013252-13-6
3E-06
M
      
HEXANE
000110-54-3
  
0.7
I
    
HEXANONE, 2- (METHYL N-BUTYL KETONE)
000591-78-6
0.005
I
0.03
I
    
HEXAZINONE
051235-04-2
0.033
I
      
HEXYTHIAZOX (SAVEY)
078587-05-0
0.025
I
      
HMX
002691-41-0
0.05
I
      
HYDRAZINE/HYDRAZINE SULFATE
000302-01-2
  
0.00003
P
3
I
0.0049
I
HYDROQUINONE
000123-31-9
0.04
P
  
0.06
P
  
INDENO[1,2,3-CD]PYRENE
000193-39-5
    
1.2
C
0.00011
C
IPRODIONE
036734-19-7
0.04
I
  
0.0439
O
  
IRON
007439-89-6
0.7
P
      
ISOBUTYL ALCOHOL
000078-83-1
0.3
I
0.4
X
    
ISOPHORONE
000078-59-1
0.2
I
2
C
0.00095
I
  
ISOPROPYL METHYLPHOSPHONATE
001832-54-8
0.1
I
      
KEPONE
000143-50-0
0.0003
I
  
10
I
0.0046
C
LEAD
007439-92-1
    
0.0085
C
1.2E-05
C
LITHIUM
007439-93-2
0.002
P
      
MALATHION
000121-75-5
0.02
I
      
MALEIC HYDRAZIDE
000123-33-1
0.5
I
      
MANEB
012427-38-2
0.005
I
  
0.0601
O
  
MANGANESE
007439-96-5
0.14
I
5E-05
I
    
MERCURY
007439-97-6
0.00016
C
0.0003
I
    
MERPHOS OXIDE
000078-48-8
0.0005
D
      
SSRS_LRP_053 Ver 1.2
Page 9 of 15
Report image
Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
METHACRYLONITRILE
000126-98-7
0.0001
I
0.03
P
    
METHAMIDOPHOS
010265-92-6
5E-05
I
      
METHANOL
000067-56-1
2
I
20
I
    
METHOMYL
016752-77-5
0.025
I
      
METHOXYCHLOR
000072-43-5
0.005
I
      
METHOXYETHANOL, 2-
000109-86-4
0.005
P
0.007
P
    
METHYL ACETATE
000079-20-9
1
X
      
METHYL ACRYLATE
000096-33-3
  
0.02
P
    
METHYL CHLORIDE
000074-87-3
  
0.09
I
    
METHYL ETHYL KETONE
000078-93-3
0.6
I
5
I
    
METHYL HYDRAZINE
000060-34-4
0.001
P
0.00002
X
  
0.001
X
METHYL ISOBUTYL KETONE
000108-10-1
  
3
I
    
METHYL ISOCYANATE
000624-83-9
  
0.001
C
    
METHYL METHACRYLATE
000080-62-6
1.4
I
0.7
I
    
METHYL METHANESULFONATE
000066-27-3
    
0.099
C
2.8E-05
C
METHYL PARATHION
000298-00-0
0.00025
I
      
METHYL STYRENE (MIXED ISOMERS)
025013-15-4
0.006
H
0.04
H
    
METHYL TERT-BUTYL ETHER (MTBE)
001634-04-4
  
3
I
0.0018
C
2.6E-07
C
METHYLCHLOROPHENOXYACETIC ACID (MCPA)
000094-74-6
0.0005
I
      
METHYLENE BIS(2-CHLOROANILINE), 4,4'-
000101-14-4
0.002
P
  
0.1
P
0.00043
C
METHYLNAPHTHALENE, 2-
000091-57-6
0.004
I
0.003
S (Naphthalene Surrogate)
    
METHYLSTYRENE, ALPHA
000098-83-9
0.07
H
      
METOLACHLOR
051218-45-2
0.15
I
      
METRIBUZIN
021087-64-9
0.025
I
      
MOLYBDENUM
007439-98-7
0.005
I
0.002
D
    
MONOCHLOROACETIC ACID
000079-11-8
0.01
M
      
NAPHTHALENE
000091-20-3
0.02
I
0.003
I
0.12
C
3.4E-05
C
NAPHTHYLAMINE, 1-
000134-32-7
    
1.8
S (2-Naphthylamine surrogate)
  
SSRS_LRP_053 Ver 1.2
Page 10 of 15
Report image
Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
NAPHTHYLAMINE, 2-
000091-59-8
    
1.8
C
  
NAPROPAMIDE
015299-99-7
0.12
O
      
NICKEL
007440-02-0
0.02
I
0.00009
D
  
0.00024
I (Nickel Refinery Dust Surrogate)
NITRATE NITROGEN
014797-55-8
1.6
I
      
NITRITE NITROGEN
014797-65-0
0.1
I
      
NITROANILINE, M-
000099-09-2
        
NITROANILINE, O-
000088-74-4
0.01
X
0.00005
X
    
NITROANILINE, P-
000100-01-6
0.004
P
0.006
P
0.02
P
  
NITROBENZENE
000098-95-3
0.002
I
0.009
I
  
4E-05
I
NITROGUANIDINE
000556-88-7
0.1
I
      
NITROPHENOL, 2-
000088-75-5
0.008
S (4-Nitrophenol Surrogate)
      
NITROPHENOL, 4-
000100-02-7
0.008
M
      
NITROPROPANE, 2-
000079-46-9
  
0.02
I
  
0.00058
P
NITROSODIETHYLAMINE, N-
000055-18-5
    
150
I
0.043
I
NITROSODIMETHYLAMINE, N-
000062-75-9
8E-06
P
0.00004
X
51
I
0.014
I
NITROSO-DI-N-BUTYLAMINE, N-
000924-16-3
    
5.4
I
0.0016
I
NITROSODI-N-PROPYLAMINE, N-
000621-64-7
    
7
I
0.002
C
NITROSODIPHENYLAMINE, N-
000086-30-6
    
0.0049
I
2.6E-06
C
NITROSO-N-ETHYLUREA, N-
000759-73-9
    
27
C
0.0077
C
OCTYL PHTHALATE, DI-N-
000117-84-0
0.01
P
      
OXAMYL (VYDATE)
023135-22-0
0.025
I
      
PARAQUAT
001910-42-5
0.0045
I
      
PARATHION
000056-38-2
0.00003
O
      
PCB-1016 (AROCLOR)
012674-11-2
7E-05
I
      
PCB-1221 (AROCLOR)
011104-28-2
    
2
S
0.0001
S
PCB-1232 (AROCLOR)
011141-16-5
    
2
S
0.0001
S
PCB-1242 (AROCLOR)
053469-21-9
    
2
S
0.0001
S
PCB-1248 (AROCLOR)
012672-29-6
    
2
S
0.0001
S
SSRS_LRP_053 Ver 1.2
Page 11 of 15
Report image
Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
PCB-1254 (AROCLOR)
011097-69-1
2E-05
I
      
PCB-1260 (AROCLOR)
011096-82-5
    
2
S
0.0001
S
PEBULATE
001114-71-2
0.0007
O
      
PENTACHLOROBENZENE
000608-93-5
0.0008
I
      
PENTACHLOROETHANE
000076-01-7
    
0.09
P
  
PENTACHLORONITROBENZENE
000082-68-8
0.003
I
  
0.26
H
  
PENTACHLOROPHENOL
000087-86-5
0.005
I
  
0.4
I
5.1E-06
C
PERCHLORATE
007790-98-9
0.0007
I
      
PERFLUOROBUTANE SULFONATE (PFBS)
000375-73-5
0.0003
P
      
PERFLUOROBUTANOIC ACID (PFBA)
000375-22-4
0.001
I
      
PERFLUOROHEXANESULFONIC ACID (PFHxS)
000355-46-4
4E-10
I
      
PERFLUOROHEXANOIC ACID (PFHXA)
000307-24-4
0.0005
I
      
PERFLUORONONANOIC ACID (PFNA)
000375-95-1
3E-06
M
      
PERFLUOROOCTANE SULFONATE (PFOS)
001763-23-1
1E-07
M
  
39.5
M
  
PERFLUOROOCTANOIC ACID (PFOA)
000335-67-1
3E-08
M
  
29300
M
  
PHENACETIN
000062-44-2
    
0.0022
C
6.3E-07
C
PHENANTHRENE
000085-01-8
0.3
S (Anthracene Surrogate)
      
PHENOL
000108-95-2
0.3
I
0.2
C
    
PHENYL MERCAPTAN
000108-98-5
0.001
P
      
PHENYLENEDIAMINE, M-
000108-45-2
0.006
I
      
PHENYLPHENOL, 2-
000090-43-7
    
0.00194
H
  
PHORATE
000298-02-2
0.00017
O
      
PHTHALIC ANHYDRIDE
000085-44-9
2
I
0.02
C
    
PICLORAM
001918-02-1
0.07
I
      
POLYCHLORINATED BIPHENYLS (AROCLORS) (PCBS)
001336-36-3
    
2
I
0.0001
I
POTASSIUM PERFLUOROBUTANE SULFONATE
029420-49-3
0.0003
P
      
PROMETON
001610-18-0
0.015
I
      
PRONAMIDE
023950-58-5
0.075
I
      
SSRS_LRP_053 Ver 1.2
Page 12 of 15
Report image
Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
PROPACHLOR
1918-16-7
1.3E-2
I
      
PROPANIL
000709-98-8
0.005
I
      
PROPANOL, 2- (ISOPROPYL ALCOHOL)
000067-63-0
2
P
0.2
P
    
PROPAZINE
000139-40-2
0.02
I
      
PROPHAM
000122-42-9
0.02
I
      
PROPYLBENZENE, N-
000103-65-1
0.1
X
1
X
    
PROPYLENE GLYCOL
000057-55-6
20
P
      
PROPYLENE OXIDE
000075-56-9
0.001
O
0.03
I
0.24
I
3.7E-06
I
PYRENE
000129-00-0
0.03
I
      
PYRIDINE
000110-86-1
0.001
I
      
QUINOLINE
000091-22-5
    
3
I
  
QUIZALOFOP (ASSURE)
076578-14-8
0.009
I
      
RDX
000121-82-4
0.004
I
  
0.08
I
  
RESORCINOL
000108-46-3
2
TERA's ITER Peer Review
      
RONNEL
000299-84-3
0.05
H
      
SELENIUM
007782-49-2
0.005
I
0.02
C
    
SILVER
007440-22-4
0.005
I
      
SIMAZINE
000122-34-9
0.005
I
  
0.12
H
  
STRONTIUM
007440-24-6
0.6
I
      
STRYCHNINE
000057-24-9
0.0003
I
      
STYRENE
000100-42-5
0.2
I
1
I
    
SULFURIC ACID
007664-93-9
  
0.001
C
    
TEBUTHIURON
034014-18-1
0.07
I
      
TERBACIL
005902-51-2
0.013
I
      
TERBUFOS
013071-79-9
2.5E-05
H
      
TETRACHLOROBENZENE, 1,2,4,5-
000095-94-3
0.00003
P
      
TETRACHLORODIBENZO-P-DIOXIN, 2,3,7,8- (TCDD)
001746-01-6
7E-10
I
4E-08
C
130000
C
38
C
TETRACHLOROETHANE, 1,1,1,2-
000630-20-6
0.03
I
  
0.026
I
7.4E-06
I
SSRS_LRP_053 Ver 1.2
Page 13 of 15
Report image
Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
TETRACHLOROETHANE, 1,1,2,2-
000079-34-5
0.02
I
  
0.2
I
5.8E-05
C
TETRACHLOROETHYLENE (PCE)
000127-18-4
0.006
I
0.04
I
0.0021
I
2.6E-07
I
TETRACHLOROPHENOL, 2,3,4,6-
000058-90-2
0.03
I
      
TETRAETHYL LEAD
000078-00-2
1E-07
I
      
TETRAETHYLDITHIOPYROPHOSPHATE
003689-24-5
0.0005
I
      
TETRAHYDROFURAN
000109-99-9
0.9
I
2
I
    
THALLIUM
007440-28-0
0.00001
X
      
THIOFANOX
039196-18-4
0.0003
H
      
THIRAM
000137-26-8
0.015
O
      
TIN
007440-31-5
0.6
H
      
TOLUENE
000108-88-3
0.08
I
5
I
    
TOLUIDINE, M-
000108-44-1
    
0.016
S (o-Toluidine Surrogate)
5.1E-05
S (o-Toluidine Surrogate)
TOLUIDINE, O-
000095-53-4
    
0.016
P
5.1E-05
C
TOLUIDINE, P-
000106-49-0
0.004
X
  
0.03
P
  
TOXAPHENE
008001-35-2
0.00009
P
  
1.1
I
0.00032
I
TRIALLATE
002303-17-5
0.025
O
  
0.0717
O
  
TRIBROMOMETHANE (BROMOFORM)
000075-25-2
0.02
I
  
0.0079
I
1.1E-06
I
TRICHLORO-1,2,2-TRIFLUOROETHANE, 1,1,2-
000076-13-1
30
I
5
P
    
TRICHLOROACETIC ACID
000076-03-9
0.02
I
  
0.07
I
  
TRICHLOROBENZENE, 1,2,4-
000120-82-1
0.01
I
0.002
P
0.029
P
  
TRICHLOROBENZENE, 1,3,5-
000108-70-3
0.006
M
0.002
S (1,2,4-Trichlorobenzene Surrogate)
    
TRICHLOROETHANE, 1,1,1-
000071-55-6
2
I
5
I
    
TRICHLOROETHANE, 1,1,2-
000079-00-5
0.004
I
0.0002
X
0.057
I
1.6E-05
I
TRICHLOROETHYLENE (TCE)
000079-01-6
0.0005
I
0.002
I
0.046
I
4.1E-06
I
TRICHLOROPHENOL, 2,4,5-
000095-95-4
0.1
I
      
TRICHLOROPHENOL, 2,4,6-
000088-06-2
0.001
P
  
0.011
I
3.1E-06
I
TRICHLOROPHENOXYACETIC ACID, 2,4,5- (2,4,5-T)
000093-76-5
0.01
I
      
TRICHLOROPHENOXYPROPIONIC ACID, 2,4,5- (2,4,5-TP)(SILVEX)
000093-72-1
0.008
I
      
SSRS_LRP_053 Ver 1.2
Page 14 of 15
Report image
Land Recycling Program Toxicity Database
Summary of Toxicity Values
7/11/2026 2:09:26 AM
CHEMICAL NAME
CAS NUMBER
RfDo
(mg/kg/day)
RfDo Source
RfCi (mg/m³)
RfCi Source
CSFo
(mg/kg/day)-¹
CSFo Source
IUR (ug/m³)-¹
IUR Source
TRICHLOROPROPANE, 1,1,2-
000598-77-6
0.005
I
      
TRICHLOROPROPANE, 1,2,3-
000096-18-4
0.004
I
0.0003
I
30
I
  
TRICHLOROPROPENE, 1,2,3-
000096-19-5
0.003
X
0.0003
P
    
TRIETHYLAMINE
000121-44-8
  
0.007
I
    
TRIETHYLENE GLYCOL
000112-27-6
2
P
      
TRIFLURALIN
001582-09-8
0.0075
I
  
0.0077
I
  
TRIMETHYLBENZENE, 1,3,4- (TRIMETHYLBENZENE, 1,2,4-)
000095-63-6
0.01
I
0.06
I
    
TRIMETHYLBENZENE, 1,3,5-
000108-67-8
0.01
I
0.06
I
    
TRINITROGLYCEROL (NITROGLYCERIN)
000055-63-0
0.0001
P
  
0.017
P
  
TRINITROTOLUENE, 2,4,6-
000118-96-7
0.0005
I
  
0.03
I
  
VANADIUM
007440-62-2
0.005
Id
0.0001
D
    
VINYL ACETATE
000108-05-4
1
H
0.2
I
    
VINYL BROMIDE (BROMOETHENE)
000593-60-2
  
0.003
I
  
1.5E-05
P
VINYL CHLORIDE
000075-01-4
0.003
I
0.052
D
1.5
I
8.8E-06
I
WARFARIN
000081-81-2
0.0003
I
      
XYLENES (TOTAL)
001330-20-7
0.2
I
0.1
I
    
ZINC
007440-66-6
0.3
I
      
ZINEB
012122-67-7
0.05
I
      
SSRS_LRP_053 Ver 1.2
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