ERPG-1 ERPG-2 MRL REL IDLH/10 TEEL-0 TEEL-1CHEMICAL NAME CAS NO. HAP NO.mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3Acetaldehyde 75-07-0 1 81i81i490i200i18 360 0.47 360Acetamide 60-35-5 225 75Acetonitrile 75-05-8 3 22i22i540i140i84Acetophenone 98-86-2 410 302-Acetylaminofluorene 53-96-3 50.25 0.75Acrolein 107-02-8 6 0.069f0.069f0.23f0.23f0.11 0.34 0.0069 0.0025 0.46Acrylamide 79-06-1 76Acrylic acid 79-10-7 8 4.4i4.4i140i41i2.9 150 6Acrylonitrile 107-13-1 9 10i10i120i19i22 77 0.22 19Allyl chloride 107-05-1 10 8.8i8.8i170i69i9.4 130 784-Aminobiphenyl 92-67-1 110.5 1.5Aniline 62-53-3 12 30f3.8f46f5.7f38Anisidine 90-04-0 135Antimony compounds 7440-36-0 1735Antimony pentafluoride 7783-70-2 1730.75 0.75Antimony potassium tartrate 304-61-0 1731.2 4Antimony trihydride 7803-52-3 173i7.7i0.92iAntimony trioxide 1309-64-4 1730.6 1.5Arsenic chloride 7784-34-1 1740.19 0.56Arsenic compounds 7440-38-2 1740.0002 0.5Arsenic oxide 1327-53-3 174i3i1.2iArsenic pentoxide 1303-28-2 1740.015 0.045Arsine 7784-42-1 174f0.54f0.064f1.6 0.96Benzene 71-43-2 15 170i29i2600i640i160 480 0.029 1.3 160Benzidine 92-87-5 160.15 0.5Benzotrichloride 98-07-7 170.1 0.1Benzyl chloride 100-44-7 18 5.2 52 0.24 5.2Beryllium chloride 7787-47-5 1750.015 0.04Beryllium compounds 7440-41-7 1750.025 0.4Beryllium fluoride 7787-49-7 1750.01 0.025Beryllium nitrate 13597-99-4 1750.03 0.075Beryllium oxide 1304-56-9 1750.005Biphenyl 92-52-4 19i61i28iBis(2-ethylhexyl)phthalate 117-81-7 205 10Bis(chloromethyl)ether 542-88-1 21i0.21i0.094i0.47Bromoform 75-25-2 228801,3-Butadiene 106-99-0 23 1500i1500i12000i6000i22 440 0.22 440Cadmium compounds 7440-43-9 1760.00003 0.9Cadmium oxide 1306-19-0 1760.005 0.035Cadmium stearate 2223-93-0 1760.03 0.15Table 2. Acute Dose-Response Values for Screening Risk Assessments (5/9/2014).AEGL= Acute exposure guideline levels for mild effects (AEGL-1) and moderate effects (AEGL-2) for 1- and 8-hour exposures.Superscripts indicate the AEGL's status: f = final, i=interim, and p=proposed.ERPG= US DOE Emergency Removal Program guidelines for mild or transient effects (ERPG-1) and irreversible or serious effects (ERPG2) for 1-hour exposures.MRL= ATSDR minumum risk levels for no adverse effects for 1 to 14-day exposures.REL= California EPA reference exposure level for no adverse effects. Most, but not all, RELs are for 1-hoexposures.IDLH/10= One-tenth of levels determined by NIOSH to be imminently dangerous to life and health, approximately comparable to mild effects levels for 1-hour exposures.TEEL= US DOE Temporaryemergency exposure limits for no effects (TEEL-0) and mild, transient effects (TEEL-1) for 1-hour exposures.TEELs are derived according to a tiered, formula-like methodology, and do not undergo peer review. Theyare not recommended as the basis for regulatory decision-making, and are shown here only to inform situations where acute values from other sources are not available.Table 2. Acute Dose-Response Values for Screening RiskAssessments (5/9/2014)AEGL-2 (8-h)mg/m3 mg/m3 mg/m3AEGL-1 (1-h) AEGL-1 (8-h)mg/m3AEGL-2 (1-h)Page 1 of 8ERPG-1 ERPG-2 MRL REL IDLH/10 TEEL-0 TEEL-1CHEMICAL NAME CAS NO. HAP NO.mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3Table 2. Acute Dose-Response Values for Screening Risk Assessments (5/9/2014).AEGL= Acute exposure guideline levels for mild effects (AEGL-1) and moderate effects (AEGL-2) for 1- and 8-hour exposures.Superscripts indicate the AEGL's status: f = final, i=interim, and p=proposed.ERPG= US DOE Emergency Removal Program guidelines for mild or transient effects (ERPG-1) and irreversible or serious effects (ERPG2) for 1-hour exposures.MRL= ATSDR minumum risk levels for no adverse effects for 1 to 14-day exposures.REL= California EPA reference exposure level for no adverse effects. Most, but not all, RELs are for 1-hoexposures.IDLH/10= One-tenth of levels determined by NIOSH to be imminently dangerous to life and health, approximately comparable to mild effects levels for 1-hour exposures.TEEL= US DOE Temporaryemergency exposure limits for no effects (TEEL-0) and mild, transient effects (TEEL-1) for 1-hour exposures.TEELs are derived according to a tiered, formula-like methodology, and do not undergo peer review. Theyare not recommended as the basis for regulatory decision-making, and are shown here only to inform situations where acute values from other sources are not available.Table 2. Acute Dose-Response Values for Screening RiskAssessments (5/9/2014)AEGL-2 (8-h)mg/m3 mg/m3 mg/m3AEGL-1 (1-h) AEGL-1 (8-h)mg/m3AEGL-2 (1-h)Calcium cyanamide 156-62-7 240.5 1.5Captan 133-06-2 265 15Carbaryl 63-25-2 2710Carbon disulfide 75-15-0 28 40f21f500f160f3.1 160 6.2 160Carbon tetrachloride 56-23-5 29 280i120i1200i510i130 630 1.9 130Carbonyl sulfide 463-58-1 30i140i57iCatechol 120-80-9 3123 68Chloramben 133-90-4 3235 100Chlordane 57-74-9 3310Chlorine 7782-50-5 34 1.5f1.5f5.8f2.1f2.9 8.7 0.2 0.21 2.9Chloroacetic acid 79-11-8 35f26f3.2f2-Chloroacetophenone 532-27-4 36Chlorobenzene 108-90-7 37 46i46i690i690i460Chlorobenzilate 510-15-6 380.075 0.25Chloroform 67-66-3 39i310i140i240 0.49 0.15 240Chloromethyl methyl ether 107-30-2 40i1.6i0.73i3.3Chloroprene 126-99-8 41110Chromium (III) compounds 16065-83-1 177Chromium (VI) compounds 18540-29-9 1771.5Chromium (VI) trioxide, chromic acid mist 11115-74-5 1771.5Chromium chloride 10025-73-7 1771.5 4Chromium compounds 7440-47-3 1771 1.5Cobalt bromide 7789-43-7 1780.2 0.2Cobalt carbonate 513-79-1 1780.12 0.12Cobalt carbonyl 10210-68-1 1780.27 0.27Cobalt chloride 7646-79-9 1780.12 0.12Cobalt compounds 7440-48-4 1782Cobalt hydrocarbonyl 16842-03-8 1780.9Cobalt nitrate Co Nitrate 1780.15 0.15Cobalt oxides (mixed) COBOXIDES 1780.075 0.075Coke Oven Emissions 8007-45-2 1790.1 1.2m-Cresol 108-39-4 44110o-Cresol 95-48-7 43110p-Cresol 106-44-5 45110Cresols (mixed) 1319-77-3 42110Cumene 98-82-8 46 250i250i1500i640i440Cyanophos 2636-26-2 1801.2 3.5Cyanuric fluoride 675-14-9 1800.17 0.17Cyanide compounds 57-12-5 1802.5Acetone cyanohydrin 75-86-5 180 7f3.5f25f8.7fPage 2 of 8ERPG-1 ERPG-2 MRL REL IDLH/10 TEEL-0 TEEL-1CHEMICAL NAME CAS NO. HAP NO.mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3Table 2. Acute Dose-Response Values for Screening Risk Assessments (5/9/2014).AEGL= Acute exposure guideline levels for mild effects (AEGL-1) and moderate effects (AEGL-2) for 1- and 8-hour exposures.Superscripts indicate the AEGL's status: f = final, i=interim, and p=proposed.ERPG= US DOE Emergency Removal Program guidelines for mild or transient effects (ERPG-1) and irreversible or serious effects (ERPG2) for 1-hour exposures.MRL= ATSDR minumum risk levels for no adverse effects for 1 to 14-day exposures.REL= California EPA reference exposure level for no adverse effects. Most, but not all, RELs are for 1-hoexposures.IDLH/10= One-tenth of levels determined by NIOSH to be imminently dangerous to life and health, approximately comparable to mild effects levels for 1-hour exposures.TEEL= US DOE Temporaryemergency exposure limits for no effects (TEEL-0) and mild, transient effects (TEEL-1) for 1-hour exposures.TEELs are derived according to a tiered, formula-like methodology, and do not undergo peer review. Theyare not recommended as the basis for regulatory decision-making, and are shown here only to inform situations where acute values from other sources are not available.Table 2. Acute Dose-Response Values for Screening RiskAssessments (5/9/2014)AEGL-2 (8-h)mg/m3 mg/m3 mg/m3AEGL-1 (1-h) AEGL-1 (8-h)mg/m3AEGL-2 (1-h)Barium cyanide 542-62-1 1800.6 2Calcium cyanide 592-01-8 180 3.8i1.9i13i4.7iCopper cyanide 544-92-3 1801.2 4Cyanogen 460-19-5 180 4.3i2.1i18i9.2iCyanogen bromide 506-68-3 18020 44Cyanogen chloride 506-77-4 1801Cyanogen iodide 506-78-5 18035 100Hydrogen cyanide 74-90-8 180 2.2f1.1f7.8f2.8f11 0.34 5.5Isopropyl cyanide 78-82-0 180 51i21i28 140Potassium cyanide 151-50-8 1805 5Potassium silver cyanide 506-61-6 1801 3Potassium thiocyanate 333-20-0 18010 35Silver cyanide 506-64-9 18025 25Sodium cyanide 143-33-9 1805 5Zinc cyanide 557-21-1 18020 202,4-D, salts and esters 94-75-7 4710DDE 72-55-9 4810 30Diazomethane 334-88-3 490.34 1Dibenzofuran 132-64-9 5010 302,3,4,7,8-Pentachlorodibenzofuran 57117-31-4 1870.000025 0.0000751,2-Dibromo-3-chloropropane 96-12-8 510.0097 0.029Dibutylphthalate 84-74-2 52400p-Dichlorobenzene 106-46-7 5312 903,3'-Dichlorobenzidine 91-94-1 542.1 6.2Dichloroethyl ether 111-44-4 55581,3-Dichloropropene 542-75-6 564.5 14Dichlorvos 62-73-7 57 0.99p0.99p5.1p5.1p0.018 10Diesel engine emissions EMIS. 99935 100Diethanolamine 111-42-2 582 6Diethyl sulfate 64-67-5 601.9 4.7N,N-diethyl/dimethylaniline Dialks 593,3'-Dimethoxybenzidine 119-90-4 611.5 5p-Dimethylaminoazobenzene 60-11-7 6215 503,3'-Dimethylbenzidine 119-93-7 630.1 0.3Dimethyl carbamoyl chloride 79-44-7 640.88 2.6Dimethyl formamide 68-12-2 65i270i110i6 300 150Dimethyl phthalate 131-11-3 67200Dimethyl sulfate 77-78-1 68 0.12i0.045i0.62i0.22i3.6N,N-dimethylaniline 121-69-7 59501,1-Dimethylhydrazine 57-14-7 66f7.4f0.93f3.7Page 3 of 8ERPG-1 ERPG-2 MRL REL IDLH/10 TEEL-0 TEEL-1CHEMICAL NAME CAS NO. HAP NO.mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3Table 2. Acute Dose-Response Values for Screening Risk Assessments (5/9/2014).AEGL= Acute exposure guideline levels for mild effects (AEGL-1) and moderate effects (AEGL-2) for 1- and 8-hour exposures.Superscripts indicate the AEGL's status: f = final, i=interim, and p=proposed.ERPG= US DOE Emergency Removal Program guidelines for mild or transient effects (ERPG-1) and irreversible or serious effects (ERPG2) for 1-hour exposures.MRL= ATSDR minumum risk levels for no adverse effects for 1 to 14-day exposures.REL= California EPA reference exposure level for no adverse effects. Most, but not all, RELs are for 1-hoexposures.IDLH/10= One-tenth of levels determined by NIOSH to be imminently dangerous to life and health, approximately comparable to mild effects levels for 1-hour exposures.TEEL= US DOE Temporaryemergency exposure limits for no effects (TEEL-0) and mild, transient effects (TEEL-1) for 1-hour exposures.TEELs are derived according to a tiered, formula-like methodology, and do not undergo peer review. Theyare not recommended as the basis for regulatory decision-making, and are shown here only to inform situations where acute values from other sources are not available.Table 2. Acute Dose-Response Values for Screening RiskAssessments (5/9/2014)AEGL-2 (8-h)mg/m3 mg/m3 mg/m3AEGL-1 (1-h) AEGL-1 (8-h)mg/m3AEGL-2 (1-h)4,6-Dinitro-o-cresol 534-52-1 690.52,4-dinitrophenol 51-28-5 703 7.52,4-Dinitrotoluene 121-14-2 7152,4/2,6-Dinitrotoluene (mixture) 25321-14-6 710.2 0.61,4-Dioxane 123-91-1 72 61i61i1200i360i7.2 3 1801,2-Diphenylhydrazine 122-66-7 7310 30Epichlorohydrin 106-89-8 74 22i22i91i38i19 76 1.3 281,2-Epoxybutane 106-88-7 75 210i210i410i410iEthyl acrylate 140-88-5 76 34i34i150i38i0.041 120 120Ethyl benzene 100-41-4 77 140i140i4800i2500i22 350Ethyl carbamate 51-79-6 78500 500Ethyl chloride 75-00-3 7940 1000Ethylene dibromide 106-93-4 80 130i35i180i50i77Ethylene dichloride 107-06-2 81 200 810 20Ethylene glycol 107-21-1 822Ethylene imine (Aziridine) 151-56-4 83f8.1f0.83fEthylene oxide 75-21-8 84f81f14f90 140Ethylene thiourea 96-45-7 853.5 10Ethylidene dichloride (1,1-Dichloroethane) 75-34-3 861200Formaldehyde 50-00-0 87 1.1f1.1f17f17f1.2 12 0.049 0.055 2.5Diethylene glycol monobutyl ether 112-34-5 181100 150Diethylene glycol monoethyl ether 111-90-0 181140 410Ethylene glycol ethyl ether 110-80-5 1810.37 180Ethylene glycol ethyl ether acetate 111-15-9 1810.14Ethylene glycol methyl ether 109-86-4 1810.093Ethylene glycol methyl ether acetate 110-49-6 181Heptachlor 76-44-8 883.5Hexachlorobenzene 118-74-1 890.002 0.006Hexachlorobutadiene 87-68-3 90 11 32Hexachlorocyclopentadiene 77-47-4 910.11 0.2Hexachlorodibenzo-p-dioxin, mixture 19408-74-3 1870.005 0.015Hexachloroethane 67-72-1 9258Hexamethylene-1,6-diisocyanate 822-06-0 930.034 0.1Hexamethylphosphoramide 680-31-9 940.29 0.92n-Hexane 110-54-3 95i12000i12000i390Hydrazine 302-01-2 96 0.13f0.13f17f2.1f0.65 6.5 6.5Hydrochloric acid 7647-01-0 97 2.7f2.7f33f16f4.5 30 2.1 7.5Hydrofluoric acid 7664-39-3 98 0.82f0.82f20f9.8f1.6 16 0.016 0.24 2.5Hydrogen sulfide 7783-06-4 999 0.71i0.46i38i24i0.14 42 0.098 0.042Hydroquinone 123-31-9 995Page 4 of 8ERPG-1 ERPG-2 MRL REL IDLH/10 TEEL-0 TEEL-1CHEMICAL NAME CAS NO. HAP NO.mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3Table 2. Acute Dose-Response Values for Screening Risk Assessments (5/9/2014).AEGL= Acute exposure guideline levels for mild effects (AEGL-1) and moderate effects (AEGL-2) for 1- and 8-hour exposures.Superscripts indicate the AEGL's status: f = final, i=interim, and p=proposed.ERPG= US DOE Emergency Removal Program guidelines for mild or transient effects (ERPG-1) and irreversible or serious effects (ERPG2) for 1-hour exposures.MRL= ATSDR minumum risk levels for no adverse effects for 1 to 14-day exposures.REL= California EPA reference exposure level for no adverse effects. Most, but not all, RELs are for 1-hoexposures.IDLH/10= One-tenth of levels determined by NIOSH to be imminently dangerous to life and health, approximately comparable to mild effects levels for 1-hour exposures.TEEL= US DOE Temporaryemergency exposure limits for no effects (TEEL-0) and mild, transient effects (TEEL-1) for 1-hour exposures.TEELs are derived according to a tiered, formula-like methodology, and do not undergo peer review. Theyare not recommended as the basis for regulatory decision-making, and are shown here only to inform situations where acute values from other sources are not available.Table 2. Acute Dose-Response Values for Screening RiskAssessments (5/9/2014)AEGL-2 (8-h)mg/m3 mg/m3 mg/m3AEGL-1 (1-h) AEGL-1 (8-h)mg/m3AEGL-2 (1-h)Isophorone 78-59-1 10028 28Lead acetate 301-04-2 1820.075 0.2Lead chloride 7758-95-4 1820.06 0.2Lead compounds 7439-92-1 18210Lead nitrate 10099-74-8 1820.075 0.22Lead subacetate 1335-32-6 1820.06 0.2Tetraethyl lead 78-00-2 1824Tetramethyl lead 75-74-1 1824Lindane (gamma-HCH) 58-89-9 1015alpha-Hexachlorocyclohexane (a-HCH) 319-84-6 1010.5 1.5beta-Hexachlorocyclohexane (b-HCH) 319-85-7 1010.5 1.5technical Hexachlorocyclohexane (HCH) 608-73-1 1010.15 0.5Maleic anhydride 108-31-6 102 0.8 8 1Manganese chloride 7773-01-5 1830.4 6Manganese compounds 7439-96-5 18350Manganese dioxide 1313-13-9 1830.3 4Manganese oxide 1317-35-7 1830.25 0.75Manganese sulfate 7785-87-7 1830.5 7.5Manganese tricarbonyl methylcyclopentadienyl 12108-13-3 1830.6 0.6Mercuric acetate 1600-27-7 1840.01 0.03Mercuric chloride 7487-94-7 1840.035 0.12Mercuric nitrate 10045-94-0 1840.04 0.15Mercuric oxide 21908-53-2 1840.025 0.1Mercury (elemental) 7439-97-6 184i1.7i0.33i2 0.0006Methylmercuric dicyanamide 502-39-6 1840.015 0.04Mercury compounds HG_CMPDS 1841Methoxyethylmercuric acetate 151-38-2 1840.015 0.05Methyl mercury 22967-92-6 1840.2Phenylmercuric acetate 62-38-4 1840.1 0.1Methanol 67-56-1 103 690i350i2700i680i260 1300 28 790Methoxychlor 72-43-5 104500Methyl bromide 74-83-9 105i820i260i190 0.19 3.9 97Methyl chloride 74-87-3 106i1900i780i830 1 410Methyl chloroform (1,1,1-Trichloroethane) 71-55-6 107 1300i1300i3300i1700i1900 3800 11 68 380Methyl hydrazine 60-34-4 109f3.2f0.39f7.2Methyl iodide 74-88-4 110 150 290 58Methyl isobutyl ketone 108-10-1 111310 310Methyl isocyanate 624-83-9 112f0.16f0.019f0.058 0.58 0.7Methyl methacrylate 80-62-6 113 70i70i490i200i410Methyl tert-butyl ether 1634-04-4 114 180i180i2100i1400i7.2Page 5 of 8ERPG-1 ERPG-2 MRL REL IDLH/10 TEEL-0 TEEL-1CHEMICAL NAME CAS NO. HAP NO.mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3Table 2. Acute Dose-Response Values for Screening Risk Assessments (5/9/2014).AEGL= Acute exposure guideline levels for mild effects (AEGL-1) and moderate effects (AEGL-2) for 1- and 8-hour exposures.Superscripts indicate the AEGL's status: f = final, i=interim, and p=proposed.ERPG= US DOE Emergency Removal Program guidelines for mild or transient effects (ERPG-1) and irreversible or serious effects (ERPG2) for 1-hour exposures.MRL= ATSDR minumum risk levels for no adverse effects for 1 to 14-day exposures.REL= California EPA reference exposure level for no adverse effects. Most, but not all, RELs are for 1-hoexposures.IDLH/10= One-tenth of levels determined by NIOSH to be imminently dangerous to life and health, approximately comparable to mild effects levels for 1-hour exposures.TEEL= US DOE Temporaryemergency exposure limits for no effects (TEEL-0) and mild, transient effects (TEEL-1) for 1-hour exposures.TEELs are derived according to a tiered, formula-like methodology, and do not undergo peer review. Theyare not recommended as the basis for regulatory decision-making, and are shown here only to inform situations where acute values from other sources are not available.Table 2. Acute Dose-Response Values for Screening RiskAssessments (5/9/2014)AEGL-2 (8-h)mg/m3 mg/m3 mg/m3AEGL-1 (1-h) AEGL-1 (8-h)mg/m3AEGL-2 (1-h)4,4'-Methylene bis(2-chloroaniline) 101-14-4 1150.11 0.33Methylene chloride 75-09-2 116 690i i1900i210i1000 2600 2.1 14 800Methylene diphenyl diisocyanate 101-68-8 1175 7.54,4'-Methylenedianiline 101-77-9 1180.081 0.81Naphthalene 91-20-3 119130Nickel acetate 373-02-4 186Nickel carbonyl 13463-39-3 186f0.25f0.031f1.4Nickel chloride 7718-54-9 1860.6 0.6Nickel compounds 7440-02-0 1860.0002 1Nickel nitrate 13138-45-9 1863 3Nickel oxide 1313-99-1 1860.75 0.75Nickel refinery dust NI_DUST 186Nickel subsulfide 12035-72-2 186Nickel sulfate 7786-81-4 1862.5 2.5Nitrobenzene 98-95-3 1201004-Nitrobiphenyl 92-93-3 1210.25 0.754-Nitrophenol 100-02-7 1220.75 2.52-Nitropropane 79-46-9 12336Nitrosodimethylamine 62-75-9 1253.5 10N-Nitrosomorpholine 59-89-2 12612 30N-Nitroso-N-methylurea 684-93-5 1240.015 0.05Parathion 56-38-2 127i1.5i0.48i1Polychlorinated biphenyls 1336-36-3 1361 3Aroclor 1016 12674-11-2 1360.2 0.6Aroclor 1221 11104-28-2 1360.2 0.6Aroclor 1242 53469-21-9 1361 3Aroclor 1248 12672-29-6 1360.2 0.6Aroclor 1254 11097-69-1 1360.5 1.5Aroclor 1260 11096-82-5 1360.3 0.75Pentachloronitrobenzene 82-68-8 1280.5 1.5Pentachlorophenol 87-86-5 1290.25Phenol 108-95-2 130 58f24f89f46f38 190 5.8 96p-Phenylenediamine 106-50-3 1310.1 0.3Phosgene 75-44-5 132f1.2f0.16f2.0 0.004 0.81Phosphine 7803-51-2 133f2.8f0.35f0.7Phosphorus, white 7723-14-0 1340.02Phthalic anhydride 85-44-9 1356Acenaphthene 83-32-9 1870.4 1.2Anthracene 120-12-7 1872 6Benzo(a)anthracene 56-55-3 1870.1 0.3Page 6 of 8ERPG-1 ERPG-2 MRL REL IDLH/10 TEEL-0 TEEL-1CHEMICAL NAME CAS NO. HAP NO.mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3Table 2. Acute Dose-Response Values for Screening Risk Assessments (5/9/2014).AEGL= Acute exposure guideline levels for mild effects (AEGL-1) and moderate effects (AEGL-2) for 1- and 8-hour exposures.Superscripts indicate the AEGL's status: f = final, i=interim, and p=proposed.ERPG= US DOE Emergency Removal Program guidelines for mild or transient effects (ERPG-1) and irreversible or serious effects (ERPG2) for 1-hour exposures.MRL= ATSDR minumum risk levels for no adverse effects for 1 to 14-day exposures.REL= California EPA reference exposure level for no adverse effects. Most, but not all, RELs are for 1-hoexposures.IDLH/10= One-tenth of levels determined by NIOSH to be imminently dangerous to life and health, approximately comparable to mild effects levels for 1-hour exposures.TEEL= US DOE Temporaryemergency exposure limits for no effects (TEEL-0) and mild, transient effects (TEEL-1) for 1-hour exposures.TEELs are derived according to a tiered, formula-like methodology, and do not undergo peer review. Theyare not recommended as the basis for regulatory decision-making, and are shown here only to inform situations where acute values from other sources are not available.Table 2. Acute Dose-Response Values for Screening RiskAssessments (5/9/2014)AEGL-2 (8-h)mg/m3 mg/m3 mg/m3AEGL-1 (1-h) AEGL-1 (8-h)mg/m3AEGL-2 (1-h)Benzo(b)fluoranthene 205-99-2 1870.2 0.6Benzo(k)fluoranthene 207-08-9 1870.2 0.6Benzo(g,h,i)perylene 191-24-2 18710 30Benzo(a)pyrene 50-32-8 1870.2 0.6Carbazole 86-74-8 1870.75 2.5beta-Chloronaphthalene 91-58-7 1870.2 0.6Chrysene 218-01-9 1870.2 0.6Dibenz(a,h)anthracene 53-70-3 18710 30Dibenzo[a,e]pyrene 192-65-4 1870.035 0.1Fluoranthene 206-44-0 1870.005 0.015Fluorene 86-73-7 1877.5 25Indeno(1,2,3-cd)pyrene 193-39-5 1870.15 0.53-Methylcholanthrene 56-49-5 1870.2 0.61-Methylnaphthalene 90-12-0 1876 202-Methylnaphthalene 91-57-6 1876 202-Naphthylamine 91-59-8 1872.5 7.51-Nitropyrene 5522-43-0 1870.1 0.3Phenanthrene 85-01-8 1870.4 1Pyrene 129-00-0 18715 151,3-Propane sultone 1120-71-4 1370.4 1.2beta-Propiolactone 57-57-8 1381.5 1.5Propionaldehyde 123-38-6 139 110i110i620i260iPropoxur 114-26-1 1400.5 1.5Propylene dichloride 78-87-5 1410.23 180Propylene oxide 75-56-9 142 170f170f690f200f120 590 3.1 951,2-Propyleneimine 75-55-8 143f28f2.8fQuinoline 91-22-5 1441.1 3.2Quinone 106-51-4 14510Selenium compounds 7782-49-2 1890.1Hydrogen selenide 7783-07-5 189i2.4i0.86i0.66 0.005 0.33Potassium selenate 7790-59-2 1890.5 1.5Selenious acid 7783-00-8 1890.3 1Selenium dioxide 7446-08-4 1890.25 0.75Selenium disulfide 7488-56-4 1890.35 1Selenium oxychloride 7791-23-3 1890.4 1.2Selenium sulfide 7446-34-6 1890.25 0.75Sodium selenate 13410-01-0 1890.5 1.5Sodium selenite 10102-18-8 1890.4 1.2Styrene 100-42-5 146 85i85i550i550i210 1100 21 21 300Styrene oxide 96-09-3 14720 61Page 7 of 8ERPG-1 ERPG-2 MRL REL IDLH/10 TEEL-0 TEEL-1CHEMICAL NAME CAS NO. HAP NO.mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3Table 2. Acute Dose-Response Values for Screening Risk Assessments (5/9/2014).AEGL= Acute exposure guideline levels for mild effects (AEGL-1) and moderate effects (AEGL-2) for 1- and 8-hour exposures.Superscripts indicate the AEGL's status: f = final, i=interim, and p=proposed.ERPG= US DOE Emergency Removal Program guidelines for mild or transient effects (ERPG-1) and irreversible or serious effects (ERPG2) for 1-hour exposures.MRL= ATSDR minumum risk levels for no adverse effects for 1 to 14-day exposures.REL= California EPA reference exposure level for no adverse effects. Most, but not all, RELs are for 1-hoexposures.IDLH/10= One-tenth of levels determined by NIOSH to be imminently dangerous to life and health, approximately comparable to mild effects levels for 1-hour exposures.TEEL= US DOE Temporaryemergency exposure limits for no effects (TEEL-0) and mild, transient effects (TEEL-1) for 1-hour exposures.TEELs are derived according to a tiered, formula-like methodology, and do not undergo peer review. Theyare not recommended as the basis for regulatory decision-making, and are shown here only to inform situations where acute values from other sources are not available.Table 2. Acute Dose-Response Values for Screening RiskAssessments (5/9/2014)AEGL-2 (8-h)mg/m3 mg/m3 mg/m3AEGL-1 (1-h) AEGL-1 (8-h)mg/m3AEGL-2 (1-h)2,3,7,8-Tetrachlorodibenzo-p-dioxin 1746-01-6 1480.0006 0.00151,1,2,2-Tetrachloroethane 79-34-5 14969Tetrachloroethene 127-18-4 150 240i240i1600i550i680 1400 1.4 20 100Titanium tetrachloride 7550-45-0 151 0.54i0.54i7.8i0.73i5 20Toluene 108-88-3 152 750i750i4500i2400i190 1100 3.8 37 1902,4-Toluene diamine 95-80-7 1534 122,4/2,6-Toluene diisocyanate mixture (TDI) 26471-62-5 1541.8 5.32,4-Toluene diisocyanate 584-84-9 154 0.14f0.071f0.59f0.15f0.071 1.1 1.8o-Toluidine 95-53-4 15522Toxaphene 8001-35-2 1560.5 11,2,4-Trichlorobenzene 120-82-1 15737 371,1,2-Trichloroethane 79-00-5 15855Trichloroethylene 79-01-6 159 700i410i2400i1300i540 2700 112,4,5-Trichlorophenol 95-95-4 16010 302,4,6-Trichlorophenol 88-06-2 16110 30Triethylamine 121-44-8 1622.8Trifluralin 1582-09-8 1630.025 0.0752,2,4-trimethylpentane 540-84-1 164350 350Uranium compounds 7440-61-1 1881Uranium (IV) dioxide 1344-57-6 18810Uranium hexafluoride 7783-81-5 188 3.6f f9.6f1.2f5 15Uranium oxide 1344-59-8 18810Uranium, soluble salts URANSOLS 1880.05 0.6Uranyl acetate dihydrate 541-09-3 1880.075 1Uranyl nitrate hexahydrate 13520-83-7 1880.1 1.2Vinyl acetate 108-05-4 165 24i24i630i260i18 260Vinyl bromide 593-60-2 16622 66Vinyl chloride 75-01-4 167 640i180i3100i2100i1300 13000 1.3 180Vinylidene chloride 75-35-4 16820 79m-Xylene 108-38-3 17122 390o-Xylene 95-47-6 17022 390p-Xylene 106-42-3 17222 390Xylenes (mixed) 1330-20-7 169 560i560i4000i1700i8.7 22 390Page 8 of 8