IN.gov - Skip Navigation

Note: This message is displayed if (1) your browser is not standards-compliant or (2) you have you disabled CSS. Read our Policies for more information.

CLOSE MENU
  • Business & Agriculture
  • Residents
  • Government
  • Education
  • Taxes & Finance
  • Visiting & Playing
  • Family & Health

Indiana Department of Environmental Management

Air Toxics Program

IDEM Air Toxics > Risk Assessment > Air Toxics Toxicity Information Air Toxics Toxicity Information

IDEM has used the following links for the toxicity values of each air pollutant. Not all air pollutants have available cancer or hazard threshold concentrations. Threshold concentrations are the amount of air pollutant that would cause a cancer risk of 1-in-a-million or a hazard effect.

Toxicity Table
Compound CAS Number Cancer Threshold Concentration (ug/m3) Source Hazard Threshold Concentration (ug/m3) Source
1,1,1,2-tetrachloroethane 630-20-6 1.4E-01 IRIS
1,1,1,2-Tetrafluoroethane 811-97-2 80000.00 IRIS
1,1,2,2-tetrachloroethane 79-34-5 1.7E-02 IRIS
1,1,2-Trichloroethane 79-00-5 6.3E-02 IRIS 400.00 CARB
1,1-Dichloroethylene 75-35-4 2.9E-03 HEAST 200.00 IRIS
1,1-Difluoroethane 75-37-6 40000.00 IRIS
1,1-Dimethyl hydrazine 57-14-7 7.6E-03 OPP-CAN
1,2,4,5-Tetrachlorobenzene 95-94-3
1,2,4-Trichlorobenzene 120-82-1 1.0E+00 CARB 200.00 HEAST
1,2,4-Trimethylbenzene 95-63-6 6.00 RSL
1,2-Dibromo-3-chloropropane 96-12-8 5.0E-04 CARB 0.20 IRIS
1,2-Diphenylhydrazine 122-66-7 4.5E-03 IRIS
1,2-Epoxybutane 106-88-7 20.00 IRIS
1,2-Propylenimine 75-55-8 1.4E-03 CARB
1,2-trans-dichloroethylene 156-60-5 800.00 ATSDR
1,3,5-Trimethylbenzene 108-67-8 6.00 RSL
1,3-Butadiene 106-99-0 3.3E-02 IRIS 2.00 IRIS
1,3-Dichlorobenzene 541-73-1 105.00 RSL
1,3-trans dichloropropene 10061-02-6 2.7E-02 HWIR 0.02 HWIR
1,3-Dichloropropene 542-75-6 2.5E-01 IRIS 20.00 IRIS
1,3-Dinitrobenzene 99-65-0 0.35 RSL
1,3-Propane sultone 1120-71-4 1.4E-03 CARB
1,4-Dichlorobenzene 106-46-7 9.1E-02 HEAST 800.00 IRIS
1,4-Dioxane 123-91-1 2.0E-01 IRIS 30.00 IRIS
1-Chloro-1,1-difluoroethane 75-68-3 5000.00 IRIS
2,2,4-Trimethylpentane 540-84-1
2,3,7,8-Tetrachlorodibenzo-p-dioxin 1746-01-6 3.0E-08 CARB 0.00 CARB
2,4 Dimethylphenol 105-67-9 70.00 RSL
2,4,5-Trichlorophenol 95-95-4 350.00 RSL
2,4,6-Trichlorophenol 88-06-2 3.2E-01 IRIS 0.35 RSL
2,4-D, salts and ethers 94-75-7
2,4-Dinitrophenol 51-28-5 7.00 RSL
2,4-Dinitrotoluene 121-14-2 1.1E-02 CARB 7.00 CARB
2,4-Toluene diamine 95-80-7 9.1E-04 CARB
2,4-Toluene diisocyanate 584-84-9 9.1E-02 CARB 0.07 IRIS
2,6-Dinitrotoluene 606-20-2 5.3E-06 RSL 3.50 RSL
2-Acetylaminofluorene 53-96-3 7.7E-04 CARB
2-Aminoanthraquinone 117-79-3 1.1E-01 CARB
2-chloroacetophenone 532-27-4 0.03 IRIS
2-Chloronaphthalene 91-58-7 280.00 RSL
2-Ethoxyethanol 110-80-5 200.00 IRIS
2-Methoxyethanol 109-86-4 20.00 IRIS
2-Methylnaphthalene 91-57-6 70.00 RSL
2-Methylphenol 95-48-7 175.00 RSL
2-Naphthylamine 91-59-8 2.7E-05 Conv. Oral
2-Nitroaniline 88-74-4 2.00 HEAST
2-Nitropropane 79-46-9 1.8E-01 OAQPS 20.00 IRIS
3,3'-Dichlorobenzidine 91-94-1 2.9E-03 CARB
3,3-Dimethoxybenzidine 119-90-4 7.7E-03 CARB
3,4-Dimethyl phenol 95-65-8 3.50 RSL
3-Methylcholanthrene 56-49-5 1.6E-04 CARB
4,4-Methylendianiline 101-77-9 2.2E-03 CARB 20.00 CARB
4,4-Methylene bis(2-chloroaniline) 101-14-4 2.3E-03 CARB
4,6-Dinitro-o-creosol, and salts 534-52-1 0.48 TRI
4-aminobiphenyl 92-67-1 1.7E-04 CARB
4-methylphenol 106-44-5 4.00 CARB
4-Nitrobiphenyl 92-93-3
4-Nitrophenol 100-02-7 28.00 RSL
7,12-Dimethylbenz[a]anthracene 57-97-6 1.4E-05 CARB
Acenaphthene 83-32-9 210.00 RSL
Acenaphthylene 208-96-8 35.00 Michigan
Acetaldehyde 75-07-0 4.5E-01 IRIS 9.00 IRIS
Acetamide 60-35-5 5.0E-02 CARB
Acetone 67-64-1 31000.00 ATSDR
Acetonitrile 75-05-8 60.00 IRIS
Acetophenone 98-86-2
Acetylene 74-86-2
Acrolein 107-02-8 0.02 IRIS
Acrylamide 79-06-1 1.0E-02 IRIS 6.00 CARB
Acrylic Acid 79-10-7 1.00 IRIS
Acrylonitrile 107-13-1 1.5E-02 IRIS 2.00 IRIS
Aldrin 309-00-2 2.0E-04 IRIS
Allyl Chloride 107-05-1 1.7E-01 CARB 1.00 IRIS
alpha-Hexachlorocyclohexane 319-84-6 5.6E-04 IRIS 20.00 CARB
Ammonia 7664-41-7 100.00 IRIS
Aniline 62-53-3 6.3E-01 CARB 1.00 IRIS
Anthracene 120-12-7 1050.00 RSL
Antimony Compounds 7440-36-0 0.20 TRI
Antimony Trioxide 1309-64-4 0.20 IRIS
Aramite 140-57-8 1.4E-01 IRIS
Arsenic compounds 0 2.3E-04 IRIS 0.03 CARB
Arsine 7784-42-1 0.05 IRIS
Asbestos 1332-21-4 4.3E-06 IRIS
Azobenzene 103-33-3 3.2E-02 IRIS
Benzene 71-43-2 1.3E-01 IRIS 30.00 IRIS
Benzidine 92-87-5 1.5E-05 IRIS 10.00 CARB
Benzo[a]anthracene 56-55-3 9.1E-03 CARB
Benzo[a]pyrene 50-32-8 9.1E-04 CARB
Benzo[b]fluoranthene 205-99-2 9.1E-03 CARB
Benzo[e]pyrene 192-97-2
Benzo[g,h,i]perylene 191-24-2 1.1E-04 IDEM
Benzo[k]fluoranthene 207-08-9 9.1E-03 CARB
Benzofuran 271-89-6 5.6E-02 CARB
Benzonitrile 100-47-0
Benzotrichloride 98-07-7 2.7E-04 IRIS
Benzyl Chloride 100-44-7 2.1E-02 IRIS 10.15 RSL
Beryllium compounds 0 4.2E-04 IRIS 20.00 IRIS
beta-Hexachlorocyclohexane 319-85-7 1.9E-03 IRIS 2.00 CARB
beta-Propiolactone 57-57-8 2.5E-04 CARB
Biphenyl 92-52-4 0.42 RSL
bis(2-Chloroethyl)ether 111-44-4 3.0E-03 IRIS
bis(2-Ethylhexyl)phthalate 117-81-7 4.2E-01 CARB 10.00 CARB
bis(chloromethyl)ether 542-88-1 1.6E-05 IRIS
Bromoform 75-25-2 9.1E-01 IRIS
Bromomethane 74-83-9 5.00 IRIS
Butyl benzyl phthalate 85-68-7 700.00 RSL
Cadmium compounds 7440-43-9 5.6E-04 IRIS 0.02 CARB
Calcium cyanamide 156-62-7
Caprolactum 105-60-2 2.30 RSL
Captan 133-06-2 1.5E+00 CARB
Carbaryl 63-25-2 4.0E+00 OPP-CAN
Carbazole 86-74-8 1.8E-01 RSL
Carbon disulfide 75-15-0 700.00 IRIS
Carbon tetrachloride 56-23-5 1.7E-01 IRIS 100.00 IRIS
Carbonyl Sulfide 463-58-1 12.00 TRI
Catechol 120-80-9 3.8E-01 TRI
Chlordane 12789-03-6 1.0E-02 IRIS 0.70 IRIS
Chlorine 7782-50-5 0.15 ATSDR
Chlorine Dioxide 10049-04-4 0.20 IRIS
Chlorobenzene 108-90-7 1000.00 CARB
Chlorobenzilate 510-15-6 1.3E-02 HEAST
Chlorodibromomethane 124-48-1 4.2E-01 IRIS
Chlorodifluoromethane 75-45-6 5000.00 IRIS
Chloroform 67-66-3 4.3E-02 IRIS 98.00 IRIS
Chloromethane 74-87-3 5.6E-01 SCDM 90.00 IRIS
Chloromethyl methyl ether 107-30-2 1.4E-03 CARB
Chloroprene 126-99-8 3.3E-03 IRIS 20.00 IRIS
Chromium (VI) compounds 18540-29-9 8.3E-05 IRIS 0.10 IRIS
Chrysene 218-01-9 9.1E-02 CARB
Cis-1,3-dichloropropene 10061-01-5 2.7E-02 HWIR 200.00 HWIR
Cobalt 7440-48-4 0.10 ATSDR
Coke oven emissions 8007-45-2 1.6E-03 IRIS
Creosols/Cresylic Acid 1319-77-3 600.00 CARB
Crotonaldehyde 4170-30-3 1.8E-03 TRI
Cumene 98-82-8 400.00 IRIS
Cyanide Compounds 57-12-5 3.00 TRI
Cyclohexane 110-82-7 6000.00 IRIS
DDE 72-55-9 1.0E-02 CARB
Dibenz[a,h]anthracene 53-70-3 8.3E-04 CARB
Dibenzofuran 132-64-9 7.00 RSL
Dichlorobenzene 25321-22-6 1.5E-01 TRI 200.00 TRI
Dichlorobromomethane 75-27-4 5.6E-02 IRIS
Dichlorvos 62-73-7 1.2E-02 CARB 0.50 IRIS
Dieldrin 60-57-1 2.2E-04 IRIS
Diesel emissions 5.00 EPA ORD
Diethanolamine 111-42-2 3.00 CARB
Diethyl phthalate 84-66-2 2800.00 RSL
Diethyl Sulfate 64-67-5 2.9E-03 TRI
Dimethyl carbamoyl chloride 79-44-7 2.7E-04 CARB
Dimethyl formamide 68-12-2 30.00 IRIS
Dimethyl phthalate 131-11-3 35000.00 RSL
Dimethyl sulfate 77-78-1
Di-n-butyl phthalate 84-74-2 350.00 RSL
Di-n-octyl phthalate 117-84-0 70.00 RSL
Epichlorohydrin 106-89-8 8.3E-01 IRIS 1.00 IRIS
Ethane 74-84-0
Ethanol 64-17-5 2200.00 ACGIH
Ethyl acrylate 140-88-5 7.1E-02 HEAST 48.00 CARB
Ethyl Carbamate 51-79-6 3.4E-03 CARB
Chloroethane 75-00-3 7.5E+00 CARB 10000.00 IRIS
Ethyl methanesulfonate 62-50-0 1.2E-05 HWIR
Ethylbenzene 100-41-4 4.0E-01 1000.00 IRIS
Ethylene dibromide 106-93-4 1.7E-03 IRIS 9.00 IRIS
Ethylene dichloride 107-06-2 3.8E-02 IRIS 2400.00 IRIS
Ethylene glycol 107-21-1 400.00 CARB
Ethylene glycol monobutyl ether 111-76-2 1300.00 IRIS
Ethylene imine 151-56-4 5.3E-05 CARB
Ethylene oxide 75-21-8 1.1E-02 CARB 30.00 CARB
Ethylene thiourea 96-45-7 7.7E-02 CARB 3.00 CARB
Ethylidene dichloride 75-34-3 6.3E-01 CARB 500.00 HEAST
Fluoranthene 206-44-0 140.00 RSL
Fluorene 86-73-7 140.00 RSL
Fluoride 16984-48-8 13.00 CARB
Formaldehyde 50-00-0 7.7E-02 IRIS 9.80 ATSDR
Freon 11 75-69-4 700.00 HEAST
Freon 113 76-13-1 30000.00 HEAST
Freon 12 75-71-8 200.00 HEAST
Glycol Ethers 0 20.00 TRI
Heptachlor 76-44-8 7.7E-04 IRIS
Heptachlor epoxide 1024-57-3 3.8E-04 IRIS
Heptane 142-82-5 1900.00 ACGIH
Hexachlorobenzene 118-74-1 2.2E-03 IRIS 3.00 RSL
Hexachlorobutadiene 87-68-3 4.5E-02 IRIS 90.00 CARB
Hexachlorocyclopentadiene 77-47-4 0.20 IRIS
Hexachlorodibenzo-p-dioxon 57653-85-7 7.7E-07 IRIS
Hexachloroethane 67-72-1 2.5E-01 IRIS 30.00 IRIS
Hexamethylene-1,6-diisocyanate 822-06-0 0.01 IRIS
Hexamethylphosphoramide 680-31-9
Hydrazine 302-01-2 2.0E-04 IRIS 0.20 CARB
Hydrochloric Acid 7647-01-0 20.00 IRIS
Hydrofluoric acid 7664-39-3 14.00 IRIS
Hydrogen Cyanide 74-90-8 0.80 IRIS
Hydrogen Sulfide 6/4/7783 2.00 IRIS
Hydroquinone 123-31-9 6.3E-02 TRI
Indeno[1,2,3-cd]pyrene 193-39-5 9.1E-03 CARB
Isobutyraldehyde 78-84-2 35.00 TRI
Isophorone 78-59-1 3.7E+00 IRIS 2000.00 CARB
Isopropanol 67-63-0 7000.00 CARB
Isosafrole 120-58-1
Lead compounds 0 8.3E-02 CARB 0.15 CARB
Lindane 58-89-9 3.2E-03 CARB 0.30 CARB
Maleic anhydride 108-31-6 0.70 CARB
Manganese compounds 0 0.30 ATSDR
m-Creosol 108-93-4
Mercury compounds 0 0.09 CARB
Mercury, elemental 7439-97-6 0.30 IRIS
Methanol 67-56-1 20000.00 IRIS
Methyl chloroform 71-55-6 5000.00 CARB
Methyl ethyl ketone (MEK) 78-93-3 5000.00 IRIS
Methyl hydrazine 60-34-4 4.5E-03 CARB
Methyl iodide 74-88-4 1.2E-03 TRI
Methyl isobutyl ketone 108-10-1 3000.00 RSL
Methyl Isocyanate 624-83-9 1.00 CARB
Methyl methacrylate 80-62-6 700.00 IRIS
Methyl methanesulfonate 66-27-3 3.6E-02 CARB
Methyl tert butyl ether 1634-04-4 3.8E+00 CARB 3000.00 IRIS
Methylene chloride 75-09-2 1.0E+02 IRIS 600.00 IRIS
Methylene diphenyl diisocyanate 101-68-8 0.60 IRIS
M-Xylene 108-38-3 200.00 CARB
N,N-Diethyl aniline 121-69-7
Naphthalene 91-20-3 2.9E-02 CARB 3.00 IRIS
n-Hexane 110-54-3 700.00 IRIS
Nickel compounds 0 4.2E-03 IRIS 0.20 ATSDR
Nickel subsulfide 12035-72-2 2.1E-03 IRIS
Nitrobenzene 98-95-3 2.5E-02 9.00 CARB
N-Nitrosodiethylamine 55-18-5 2.3E-05 IRIS
N-Nitrosodimethylamine 62-75-9 7.1E-05 IRIS
N-Nitroso-di-N-butylamide 924-16-3 6.3E-04 IRIS
N-Nitroso-methylethylamine 10595-95-6 1.6E-04 CARB
N-Nitrosomorpholine 59-89-2 5.3E-04 CARB
N-Nitroso-N-methylurea 684-93-5 2.9E-05 CARB
N-Nitrosopyrrolidine 930-55-2 1.6E-03 IRIS
o-Anisidine 90-04-0 2.5E-02 CARB 0.20 TRI
o-Toluidine 95-53-4 2.0E-02 CARB
o-Xylene 95-47-6 200.00 CARB
p,p-Dichlorodiphenyltrichloroethane 50-29-3 1.0E-02 IRIS
Parathion 56-38-2
Pentachloronitrobenzene 82-68-8 1.4E-02 HEAST
Pentachlorophenol 87-86-5 2.0E-01 CARB 100.00 CARB
Perchloroethylene 127-18-4 3.8E+00 IRIS 40.00 IRIS
Phenanthrene 85-01-8 10.50 IDEM(R)
Phenol 108-95-2 200.00 CARB
Phosgene 75-44-5 0.30 CARB
Phosphine 7803-51-2 0.30 IRIS
Phosphoric Acid 7664-38-2 10.00 IRIS
Phosphorous 7723-14-0 0.07 CARB
Phthalic anhydride 85-44-9 20.00 CARB
Polychlorinated biphenyl compounds (PCBs) 1336-36-3 1.0E-02 IRIS 0.07 RSL
Polycyclic Organic Matter 0 2.9E-03 EPA
Propene 68551-10-0 300.00 CARB
Propionaldehyde 123-38-6 8.00 IRIS
Propoxur 114-26-1 9.1E-01 OPP-CAN
Propylene 115-07-1 3000.00 CARB
Propylene dichloride 78-87-5 5.3E-02 HEAST 4.00 IRIS
Propylene glycol monmethyl ether 107-98-2 2000.00 IRIS
Propylene oxide 75-56-9 2.7E-01 IRIS 30.00 IRIS
P-Xylene 106-42-3 200.00 CARB
Pyrene 129-00-0 105.00 RSL
Pyridine 110-86-1 3.50 RSL
Quinoline 91-22-5 1.2E-03 Conv. Oral
Safrole 94-59-7 1.6E-02 CARB
Selenium compounds 0 20.00 CARB
Styrene 100-42-5 1000.00 IRIS
Styrene oxide 96-09-3 2.2E-02 CARB 6.00 CARB
technical-Hexachlorocyclohexane 608-73-1 2.0E-03 IRIS
Titanium Tetrachloride 7550-45-0 0.10 TRI
Toluene 108-88-3 5000.00 IRIS
Toxaphene 8001-35-2 3.1E-03 IRIS
Trichloroethylene 79-01-6 2.4E-01 IRIS 2.00 IRIS
Triethylamine 121-44-8 7.00 IRIS
Trifluralin 1582-09-8 4.5E-01 IRIS
Vinyl Acetate 108-05-4 200.00 IRIS
Vinyl bromide 593-60-2 3.1E-02 HEAST 3.00 IRIS
Vinyl chloride 75-01-4 1.1E-01 IRIS 100.00 IRIS
Xylenes 1330-20-7 100.00 IRIS