October 30, 2013 Final AEGLs

Page 1 of 60 

# Final AEGLs (131)

Magnesium aluminum phosphide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1.3 1.3 0.67 0.17 0.080 AEGL 3 2.4 2.4 1.2 0.30 0.15 NR = Not recommended due to insufficient data 57-14-7 1,1- Dimethyl hydrazine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 18 6.0 3.0 0.75 0.38 AEGL 3 65 22 11 2.7 1.4 NR = Not recommended due to insufficient data 60-34-4 Methyl hydrazine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 5.3 1.8 0.90 0.23 0.11 AEGL 3 16 5.5 2.7 0.68 0.34 NR = Not recommended due to insufficient data 62-53-3 Aniline (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 48 16 8.0 2.0 1.0 AEGL 2 72 24 12 3.0 1.5 AEGL 3 120 40 20 5.0 2.5October 30, 2013 Final AEGLs

Page 2 of 60 67-66-3 Chloroform (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 120 80 64 40 29 AEGL 3 4,000 4,000 3,200 2,000 1,600 NR = Not recommended due to insufficient data 68-12-2 N,N-Dimethylformamide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 110 110 91 57 38 AEGL 3 970 670 530 280 140 NR = Not recommended due to insufficient data 74-83-9 Methyl bromide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 940 380 210 67 67 AEGL 3 3,300 1,300 740 230 130 NR = Not Recommended due to insufficient data 74-87-3 Methyl chloride (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1,100 1,100 910 570 380 AEGL 3 3,800 3,800 3,000 1,900 1,300 NR = Not Recommended due to insufficient data 74-90-8 Hydrogen cyanide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 2.5 2.5 2.0 1.3 1.0 AEGL 2 17 10 7.1 3.5 2.5 AEGL 3 27 21 15 8.6 6.6October 30, 2013 Final AEGLs

Page 3 of 60 74-93-1 Methyl mercaptan (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 40 29 23 14 7.3 AEGL 3 120 86 68 43 22 NR = Not recommended due to insufficient data Level of Distinct Odor Awareness (LOA)= 0.019 ppm

74-98-6 Propane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 10,000* 6,900* 5,500* 5,500* 5,500* AEGL 2 **see below **see below **see below **see below **see below AEGL 3 ***see below ***see below ***s ee below ***see below ***see below Lower Explosive Limit (LEL) = 23,000 ppm * = ≥ 10% LEL; ** = ≥ 50% LEL; *** = ≥ 100% LEL AEGL 2 - 10 min/30 min/60 min/4 hr/8 hr = ** 17,000 ppm AEGL 3 - 10 min/30 min/60 min/4 hr/8 hr = *** 33,000 ppm For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. For values denoted as ** & *** extreme safety considerations agai nst the hazard(s) of explosion(s) must be taken into account 75-01-4 Vinyl chloride (ppm)

10 min 30 min 60 min 4 hr 8 hr

AEGL 1 450 310 250 140 70 AEGL 2 2,800 1,600 1,200 820 820 AEGL 3 12,000* 6,800* 4,800* 3,400 3,400 Lower Explosive Limit (LEL) = 38,000 ppm to 293,000 ppm; * = ≥ 10% LEL For values denoted as * safety considerations against th e hazard(s) of explosion(s) must be taken into account. 75-08-1 Ethyl mercaptan (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.0 1.0 1.0 1.0 1.0 AEGL 2 150 150 120 77 37 AEGL 3 450 450 360 230 110 Level of Distinct Odor Awareness (LOA)= 0.00014 ppmOctober 30, 2013 Final AEGLs

Page 4 of 60 75-15-0 Carbon disulfide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 17 17 13 8.4 6.7 AEGL 2 200 200 160 100 50 AEGL 3 600 600 480 300 150 75-21-8 Ethylene oxide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 80 80 45 14 7.9 AEGL 3 360 360 200 63 35 NR = Not recommended due to insufficient data 75-44-5 *Phosgene (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.60 0.60 0.30 0.080 0.040 AEGL 3 3.6 1.5 0.75 0.20 0.090 NR = Not recommended due to insufficient data * Final AEGL values as published by NRC Vol 2 (2002). Phosgene was re-reviewed by the National Advisory Committee on Sept 9, 2009 ( http://www.epa.gov/oppt/aegl/pubs/nac_49minutes_final.pdf ) and changes have not been finalized by the National Academies. Thus, final AEGL values as published in NRC Vol 2 (2002) take precedence. 75-54-7 Methyl dichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.90 0.90 0.90 0.90 0.90 AEGL 2 50 22 11 5.5 5.5 AEGL 3 310 110 50 13 13 75-55-8 Propylenimine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 83 25 12 2.5 1.2 AEGL 3 170 50 23 5.1 2.4 NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 5 of 60 75-56-9 Propylene oxide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 73 73 73 73 73 AEGL 2 440 440 290 130 86 AEGL 3 1300 1300 870 390 260 Level of Distinct Odor Awareness = 21 ppm 75-77-4 Trimethyl chlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.8 1.8 1.8 1.8 1.8 AEGL 2 100 43 22 11 11 AEGL 3 620 210 100 26 26 75-78-5 Dimethyl dichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.90 0.90 0.90 0.90 0.90 AEGL 2 50 22 11 5.5 5.5 AEGL 3 310 110 50 13 13 75-79-6 Methyl trichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 75-86-5 Acetone cyanohydrin (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 2.5 2.5 2.0 1.3 1.0 AEGL 2 17 10 7.1 3.5 2.5 AEGL 3 27 21 15 8.6 6.6October 30, 2013 Final AEGLs

Page 6 of 60 75-94-5 Vinyl trichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 77-81-6 Agent GA (Tabun) (ppm) [mg/m 3 ]

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.0010 [0.0069] 0.00060 [0.0040] 0.00042 [0.0028] 0.00021 [0.0014] 0.00015 [0.0010] AEGL 2 0.013 [0.087] 0.0075 [0.050] 0.0053 [0.035] 0.0026 [0.017] 0.0020 [0.013] AEGL 3 0.11 [0.76] 0.057 [0.38] 0.039 [0.26] 0.021 [0.14] 0.015 [0.10] 78-93-3 Methyl ethyl ket one (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 200 200 200 200 200 AEGL 2 4,900* 3,400* 2,700* 1,700 1,700 AEGL 3 **see below **see below 4,000* 2,500* 2,500* Lower Explosive Limit (LEL) = 18,000 ppm * = ≥ 10% LEL; ** = ≥ 50% LEL AEGL 3 - 10 min/30 min = ** 10,000 ppm For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. For values denoted as ** extreme safety considerations agains t the hazard(s) of explosion(s) must be taken into account 78-95-5 Chloroacetone (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 8.0 5.5 4.4 1.1 0.53 AEGL 3 24 17 13 3.3 1.6 NR = Not recommended due to insufficient data 79-11-8 Monochloroacetic acid (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 12 8.3 6.6 1.7 0.83 AEGL 3 NR NR NR NR NROctober 30, 2013 Final AEGLs

Page 7 of 60 79-21-0 Peracetic Acid (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.52 0.52 0.52 0.52 0.52 AEGL 2 1.6 1.6 1.6 1.6 1.6 AEGL 3 60 30 15 6.3 4.1 80-10-4 Diphenyl dichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.90 0.90 0.90 0.90 0.90 AEGL 2 50 22 11 5.5 5.5 AEGL 3 310 110 50 13 13 91-08-7 2,6-Toluenediisocyanate (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.020 0.020 0.020 0.010 0.010 AEGL 2 0.24 0.17 0.083 0.021 0.021 AEGL 3 0.65 0.65 0.51 0.32 0.16 95-63-6 1,2,4-Trimethylbenzene (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 180 180 140 90 45 AEGL 2 460 460 360 230 150 AEGL 3 NR NR NR NR NR *NR = Not recommended due to lack of data 96-64-0 Agent GD (Soman) (ppm) [mg/m 3 ]

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.00046 [0.0035] 0.00026 [0.0020] 0.00018 [0.0014] 0.000091 [0.00070] 0.000065 [0.00050] AEGL 2 0.0057 [0.044] 0.0033 [0.025] 0.0022 [0.018] 0.0012 [0.0085] 0.00085 [0.0065] AEGL 3 0.049 [0.38] 0.025 [0.19] 0.017 [0.13] 0.0091 [0.070] 0.0066 [0.051]October 30, 2013 Final AEGLs

Page 8 of 60 98-13-5 Trichlorophenysilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 103-71-9 Phenyl isocyanate (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.012 0.012 0.0096 0.0061 0.0030 AEGL 3 0.036 0.036 0.029 0.018 0.0091

106-97-8 Butane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 **see below 6,900* 5,500* 5,500* 5,500* AEGL 2 ***see below **see below **see below **see below **see below AEGL 3 ***see below ***see below ***s ee below ***see below ***see below Lower Explosive Limit (LEL) = 19,000 ppm * = ≥ 10% LEL; ** = ≥ 50% LEL; *** = ≥ 100% LEL AEGL 1 - 10 min = ** 10,000 ppm AEGL 2 - 10 min = *** 24,000 ppm; 30 mi n/ 60 min/ 4hr/ 8hr = ** 17,000 ppm AEGL 3 - 10 min = *** 77,000 ppm; 30 mi n/ 60 min/ 4hr/ 8hr = *** 53,000 ppm For values denoted as * safety consider ations against the hazard(s ) of explosion(s) must be taken into account. For values denoted as ** extreme safety considerations ag ainst the hazard(s) of explosion(s) must be taken into account 107-02-8 Acrolein (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.030 0.030 0.030 0.030 0.030 AEGL 2 0.44 0.18 0.10 0.10 0.10 AEGL 3 6.2 2.5 1.4 0.48 0.27October 30, 2013 Final AEGLs

Page 9 of 60 107-11-9 Allyl Amine (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.42 0.42 0.42 0.42 0.42 AEGL 2 3.3 3.3 3.3 1.8 1.2 AEGL 3 150 40 18 3.5 2.3 107-15-3 Ethylene diamine (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 12 12 9.7 6.1 4.8 AEGL 3 25 25 20 13 10 NR = Not recommended due to insufficient data

107-19-7 Propargyl alcohol (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 2.5 2.5 2.5 2.5 2.5 AEGL 2 20 20 16 10 6.6 AEGL 3 130 91 72 29 14 107-20-0 Chloroacetaldehyde (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 2.3 2.3 1.3 0.40 0.22 AEGL 2 9.8 3.9 2.2 0.69 0.39 AEGL 3 44 18 9.9 3.1 1.8 107-30-2 Chloromethyl methyl ether (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.60 0.60 0.47 0.30 0.22 AEGL 3 2.6 2.6 2.0 1.3 0.93 NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 10 of 60 107-37-9 Allyl trichlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7

107-44-8 Agent GB (Sarin) (ppm) [mg/m 3 ] 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.0012 [0.0069] 0.00068 [0.0040] 0.00048 [0.0028] 0.00024 [0.0014] 0.00017 [0.0010] AEGL 2 0.015 [0.087] 0.0085 [0.050] 0.0060 [0.035] 0.0029 [0.017] 0.0022 [0.013] AEGL 3 0.064 [0.38] 0.032 [0.19] 0.022 [0.13] 0.012 [0.070] 0.0087 [0.051] 107-72-2 Amy ltrichlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 108-05-4 Vinyl acetate (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 6.7 6.7 6.7 6.7 6.7 AEGL 2 46 46 36 23 15 AEGL 3 230 230 180 110 75 108-67-8 1,3,5-Trimethylbenzene (Mesitylene) (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 180 180 140 90 45 AEGL 2 460 460 360 230 150 AEGL 3 NR NR NR NR NR *NR = Not recommended due to lack of dataOctober 30, 2013 Final AEGLs

Page 11 of 60 108-90-7 Chlorobenzene (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 10 10 10 10 10 AEGL 2 430 300 150 150 150 AEGL 3 1100 800 400 400 400

108-91-8 Cyclohexylamine (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.8 1.8 1.8 1.8 1.8 AEGL 2 11 11 8.6 5.4 2.7 AEGL 3 38 38 30 19 9.5 108-95-2 Phenol (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 19 19 15 9.5 6.3 AEGL 2 29 29 23 15 12 AEGL 3 NR NR NR NR NR NR = Not recommended due to insufficient data Level of Distinct Odor Awarenes (LOA) = 0.25 ppm 108-98-5 Phenyl mercaptan (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1.0 0.70 0.53 0.33 0.17 AEGL 3 3.0 2.1 1.6 1.0 0.52 *NR = Not recommended due to lack of data 109-90-0 Ethyl isocyanate (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.20 0.065 0.034 0.0085 0.0040 AEGL 3 0.60 0.20 0.10 0.025 0.013 NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 12 of 60 111-36-4 n-Butyl isocyanate (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.10 0.10 0.083 0.053 0.026 AEGL 3 0.31 0.31 0.25 0.16 0.078 110-00-9 Furan (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 12 8.5 6.8 1.7 0.85 AEGL 3 35 24 19 4.8 2.4 NR = Not recommended due to insufficient data 110-54-3 Hexane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 *4,000 *2,900 *2,900 *2,900 *2,900 AEGL 3 **see below ***see below ***s ee below ***see below ***see below NR = Not recommended due to insufficient data Lower Explosive Limit (LEL) = 11,000 ppm * The AEGL-2 values is higher than 10% of the lower expl osive limit of n-hexane in air. Therefore, safely considerations against th e hazard of explosion must be taken into account. ** The 10-min AEGL-3 value of 12,000 ppm (42,000 mg/m 3 ) is higher than the lower explosive limit of n-hexane in air. Therefore, extreme safety considerations against the hazard of explosion must be taken into account. *** The AEGL-3 values for the 30-min, 1-hr, 4-hr and 8-hr durations ar e each 8,600 ppm (30,000 mg/m 3 ) which is higher than 50% of the lower explosive limit of n-hexa ne in air. Therefore, extreme safety considerations against the hazard of explosion must be taken into account. 110-89-4 Piperidine (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 10 10 6.6 2.6 1.7 AEGL 2 50 50 33 13 8.3 AEGL 3 370 180 110 45 28 Level of Distinct Odor Awareness (LOA) = 5.8 ppmOctober 30, 2013 Final AEGLs

Page 13 of 60 112-04-9 Octadecyl trichlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7

115-21-9 Ethyl trichlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7

123-73-9 trans-Crotonaldehyde (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.19 0.19 0.19 0.19 0.19 AEGL 2 27 8.9 4.4 1.1 0.56 AEGL 3 44 27 14 2.6 1.5 124-63-0 Methanesulfonyl chloride (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.40 0.40 0.21 0.053 0.026 AEGL 3 1.2 1.2 0.62 0.16 0.078 NR = Not recommended due to insufficient data 124-70-9 Methylvinyl dichlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.90 0.90 0.90 0.90 0.90 AEGL 2 50 22 11 5.5 5.5 AEGL 3 310 110 50 13 13October 30, 2013 Final AEGLs

Page 14 of 60 141-57-1 Propyl trichlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 141-59-3 t-Octyl mercaptan (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.77 0.77 0.60 0.40 0.19 AEGL 3 2.3 2.3 1.8 1.2 0.58 NR = Not recommended due to insufficient data 151-56-4 Ethylenimine (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 33 9.8 4.6 1.0 0.47 AEGL 3 51 19 9.9 2.8 1.5 NR = Not recommended due to insufficient data Level of Distinct Odor Awareness = 11 ppm

156-59-2 cis-1,2-Dic hloroethylene (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 140 140 140 140 140 AEGL 2 500 500 500 340 230 AEGL 3 850 850 850 620 310

156-60-5 cis- and trans- 1,2-Dichloroethylene (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 280 280 280 280 280 AEGL 2 1,000 1,000 1,000 690 450 AEGL 3 1,700 1,700 1,700 1,200 620October 30, 2013 Final AEGLs

Page 15 of 60 302-01-2 Hydrazine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.10 0.10 0.10 0.10 0.10 AEGL 2 23 16 13 3.1 1.6 AEGL 3 64 45 35 8.9 4.4 329-99-7 GF Agent (ppm) [mg/m 3 ]

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.00049 [0.0035] 0.00028 [0.0020] 0.00020 [0.0014] 0.00010 [0.00070] 0.000070 [0.00050] AEGL 2 0.0062 [0.044] 0.0035 [0.025] 0.0024 [0.018] 0.0013 [0.0085] 0.00091 [0.0065] AEGL 3 0.053 [0.38] 0.027 [0.19] 0.018 [0.13] 0.0098 [0.070] 0.0071 [0.051]

505-60-2 Sulfur Mustard (ppm)[mg/m 3 ]

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.060 [0.40] 0.020 [0.13] 0.010 [0.067] 0.0030 [0.017] 0.0010 [0.0083] AEGL 2 0.090 [0.60] 0.030 [0.20] 0.020 [0.10] 0.0040 [0.025] 0.0020 [0.013] AEGL 3 0.59 [3.9] 0.41 [2.7] 0.32 [2.1] 0.080 [0.53] 0.040 [0.27]

509-14-8 Tetranitromethane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.66 0.66 0.52 0.33 0.17 AEGL 3 2.2 2.2 1.7 1.1 0.55 NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 16 of 60 526-73-8 1,2,3-Trimethylbenzene (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 180 180 140 90 45 AEGL 2 460 460 360 230 150 AEGL 3 NR NR NR NR NR *NR = Not recommended due to lack of data 540-73-8 1,2-Dimethyl hydrazine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 18 6.0 3.0 0.75 0.38 AEGL 3 65 22 11 2.7 1.4 NR = Not recommended due to insufficient data 541-25-3 Lewisite 1 (mg/m 3 ) (including mixtures with Lewisite 2 CAS #40334-69-8 and Lewisite 3 CAS #40334-70-1)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1.3 0.47 0.25 0.070 0.037 AEGL 3 3.9 1.4 0.74 0.21 0.11 NR = Not recommended due to insufficient data 542-88-1 Bis-chloromethyl ether (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.055 0.055 0.044 0.028 0.020 AEGL 3 0.23 0.23 0.18 0.11 0.075 NR = Not recommended due to insufficient data 556-61-6 Methyl isothiocyanate (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.27 0.27 0.27 0.27 0.27 AEGL 2 21 21 17 10 5.3 AEGL 3 63 63 50 31 16October 30, 2013 Final AEGLs

Page 17 of 60 584-84-9 2,4-Toluene Diisocyanate (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.020 0.020 0.020 0.010 0.010 AEGL 2 0.24 0.17 0.083 0.021 0.021 AEGL 3 0.65 0.65 0.51 0.32 0.16

594-42-3 Perchloromethyl mercaptan (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.013 0.013 0.013 0.013 0.013 AEGL 2 0.53 0.37 0.30 0.077 0.037 AEGL 3 1.6 1.1 0.90 0.23 0.11 Level of Distinct Odor Awareness = 0.016 ppm

598-31-2 Bromoacetone (ppm) 9/21/09

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.011 0.011 0.011 0.011 0.011

AEGL 2 1.4 0.57 0.33 0.11 0.063 AEGL 3 4.1 1.7 0.98 0.32 0.19

624-83-9 Methyl isocyanate (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.40 0.13 0.067 0.017 0.0080 AEGL 3 1.2 0.40 0.20 0.05 0.025 NR = Not recommended since AEGL-1 irritation levels would exceed AEGL-2 630-08-0 Carbon monoxide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 420 150 83 33 27 AEGL 3 1,700 600 330 150 130 NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 18 of 60 681-84-5 Tetramethoxy silane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1.1 1.1 0.91 0.57 0.38 AEGL 3 1.7 1.7 1.4 0.87 0.43 NR = Not recommended due to insufficient data 684-16-2 Hexafluoroacetone (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.40 0.40 0.20 0.050 0.025 AEGL 3 160 160 80 20 10 NR = Not recommended due to insufficient data 811-97-2 HFC 134A (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 8,000 8,000 8,000 8,000 8,000 AEGL 2 13,000 13,000 13,000 13,000 13,000 AEGL 3 27,000 27,000 27,000 27,000 27,000 928-65-4 Hexyltrichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 993-00-0 Methyl chlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.8 1.8 1.8 1.8 1.8 AEGL 2 100 43 22 11 11 AEGL 3 620 210 100 26 26October 30, 2013 Final AEGLs

Page 19 of 60 1066-35-9 Dimethyl chlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.8 1.8 1.8 1.8 1.8 AEGL 2 100 43 22 11 11 AEGL 3 620 210 100 26 26

1305-99-3 Calcium phosphide (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 2.0 2.0 1.0 0.25 0.13 AEGL 3 3.6 3.6 1.8 0.45 0.23 NR = Not recommended due to insufficient data 1314-84-7 Zinc phosphide (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 2.0 2.0 1.0 0.25 0.13 AEGL 3 3.6 3.6 1.8 0.45 0.23 NR = Not recommended due to insufficient data 1330-20-7 Xylenes (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 130 130 130 130 130 AEGL 2 2,500* 1,300* 920* 500 400 AEGL 3 ** see below 3,600* 2,500* 1,300* 1,000* Lower Explosion Limit (LEL) = 9,000 ppm * ≥ 10% LEL; ** ≥ 50% LEL AEGL 3 - 10 min = ** 7,200 ppm For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. For value denoted as ** extreme safety considerations against the hazard(s) of explosion(s) must be taken into accountOctober 30, 2013 Final AEGLs

Page 20 of 60 1498-51-7 Ethylphosphorodichloridate (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.37 0.25 0.20 0.13 0.063 AEGL 3 1.1 0.76 0.60 0.38 0.19 1558-25-4 Chloromethyl trichlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 1717-00-6 HCFC 141b (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 1,000 1,000 1,000 1,000 1,000 AEGL 2 1,700 1,700 1,700 1,700 1,700 AEGL 3 3,000 3,000 3,000 3,000 3,000 1719-53-5 Diethyl dichlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.90 0.90 0.90 0.90 0.90 AEGL 2 50 22 11 5.5 5.5 AEGL 3 310 110 50 13 13 2487-90-3 Trimethoxysilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 2.9 1.4 0.83 0.33 0.20 AEGL 3 8.8 4.1 2.5 0.98 0.61 NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 21 of 60 3173-53-3 Cyclohexyl isocyanate (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.20 0.065 0.034 0.0085 0.0040 AEGL 3 0.60 0.20 0.10 0.025 0.013 NR = Not recommended due to insufficient data 4109-96-0 Dichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.90 0.90 0.90 0.90 0.90 AEGL 2 50 22 11 5.5 5.5 AEGL 3 310 110 50 13 13

4170-30-3 cis-Crotonaldehyde (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.19 0.19 0.19 0.19 0.19 AEGL 2 27 8.9 4.4 1.1 0.56 AEGL 3 44 27 14 2.6 1.5

4484-72-4 Dodecyl trichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 5283-66-9 Octyl trichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7October 30, 2013 Final AEGLs

Page 22 of 60 5283-67-0 Nonyl trichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 6423-43-4 Propylene Glycol Dinitrate (main component of Otto Fuel 106602-80-6) (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.33 0.33 0.17 0.050 0.030 AEGL 2 2.0 2.0 1.0 0.25 0.13 AEGL 3 16 16 13 8.0 5.3

6581-06-2 BZ (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.067 0.022 0.011 NR NR AEGL 3 1.2 0.41 0.21 NR NR 7446-09-5 Sulfur Dioxide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.20 0.20 0.20 0.20 0.20 AEGL 2 0.75 0.75 0.75 0.75 0.75 AEGL 3 30 30 30 19 9.6

7521-80-4 Butyl trichlorosilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7October 30, 2013 Final AEGLs

Page 23 of 60 7616-94-6 Perchloryl fluoride (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.8 1.8 1.5 0.92 0.60 AEGL 2 5.0 5.0 4.0 2.5 1.2 AEGL 3 15 15 12 7.5 3.7 7637-07-2 Boron trifluoride (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 2.5 2.5 2.5 2.5 2.5 AEGL 2 37 37 29 18 9.3 AEGL 3 110 110 88 55 28 7647-01-0 Hydrogen chloride (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.8 1.8 1.8 1.8 1.8 AEGL 2 100 43 22 11 11 AEGL 3 620 210 100 26 26 7664-39-3 Hydrogen fluoride (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.0 1.0 1.0 1.0 1.0 AEGL 2 95 34 24 12 12 AEGL 3 170 62 44 22 22 7664-41-7 Ammonia (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 30 30 30 30 30 AEGL 2 220 220 160 110 110 AEGL 3 2,700 1,600 1,100 550 390October 30, 2013 Final AEGLs

Page 24 of 60 7697-37-2 Nitric Acid (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.16 0.16 0.16 0.16 0.16 AEGL 2 43 30 24 6.0 3.0 AEGL 3 170 120 92 23 11 7719-12-2 Phosphorus Trichloride (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.34 0.34 0.34 0.34 0.34 AEGL 2 2.5 2.5 2.0 1.3 0.83 AEGL 3 7.0 7.0 5.6 3.5 1.8

7726-95-6 Bromine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.033 0.033 0.033 0.033 0.033 AEGL 2 0.55 0.33 0.24 0.13 0.095 AEGL 3 19 12 8.5 4.5 3.3 7782-41-4 Fluorine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.7 1.7 1.7 1.7 1.7 AEGL 2 20 11 5.0 2.3 2.3 AEGL 3 36 19 13 5.7 5.7 7782-50-5 Chlorine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.50 0.50 0.50 0.50 0.50 AEGL 2 2.8 2.8 2.0 1.0 0.71 AEGL 3 50 28 20 10 7.1October 30, 2013 Final AEGLs

Page 25 of 60 7783-06-4 Hydrogen sulfide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.75 0.60 0.51 0.36 0.33 AEGL 2 41 32 27 20 17 AEGL 3 76 59 50 37 31 Level of Distinct Odor Awareness = 0.01 ppm 7783-81-5 Uranium hexafluoride (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 3.6 3.6 3.6 NR NR AEGL 2 28 19 9.6 2.4 1.2 AEGL 3 216 72 36 9.0 4.5 7784-42-1 Arsine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.30 0.21 0.17 0.040 0.020 AEGL 3 0.91 0.63 0.50 0.13 0.060 NR = Not recommended since AEGL-2 concentrations are below sensory effect concentrations. 7790-91-2 Chlorine trifluoride (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.12 0.12 0.12 0.12 0.12 AEGL 2 8.1 3.5 2.0 0.70 0.41 AEGL 3 84 36 21 7.3 7.3 7791-25-5 Sulfuryl chloride (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.7 4.7 3.7 2.3 1.2 AEGL 3 14 14 11 7.0 3.5 NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 26 of 60 7803-51-2 Phosphine (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.0 4.0 2.0 0.50 0.25 AEGL 3 7.2 7.2 3.6 0.90 0.45 NR = Not recommended due to insufficient data 10025-78-2 Trichlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 10025-87-3 Phosphorus oxychloride (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 NR NR NR NR NR AEGL 3 1.1 1.1 0.85 0.54 0.27 NR = Not recommended due to insufficient data

10026-04-7 Tetrachlorosilane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.45 0.45 0.45 0.45 0.45 AEGL 2 25 11 5.5 2.8 2.8 AEGL 3 160 53 25 6.5 6.5

10049-04-4 Chlorine dioxide (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.15 0.15 0.15 0.15 0.15 AEGL 2 1.4 1.4 1.1 0.69 0.45 AEGL 3 3.0 3.0 2.4 1.5 0.98October 30, 2013 Final AEGLs

Page 27 of 60 10102-43-9 * Nitric oxide (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 NR NR NR NR NR AEGL 3 NR NR NR NR NR NR = Not recommended; AEGL values for nitrogen dioxide should be used for emerge ncy planning; Short-term exposures below 80 ppm NO should not constitute a health hazard 10102-44-0 * Nitrogen dioxide (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.50 0.50 0.50 0.50 0.50 AEGL 2 20 15 12 8.2 6.7 AEGL 3 34 25 20 14 11 * Some effects may be delayed 10544-72-6 Nitrogen Tetroxide ppm (mg/m 3 ) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.25 (0.94) 0.25 (0.94) 0.25 (0.94) 0.25 (0.94) 0.25 (0.94) AEGL 2 10 (38) 7.6 (28) 6.2 (23) 4.1 (15) 3.5 (13) AEGL 3 17 (64) 13 (47) 10 (38) 7.0 (26) 5.7 (21)

12057-74-8 Magnesium phosphide (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 2.0 2.0 1.0 0.25 0.13 AEGL 3 3.6 3.6 1.8 0.45 0.23 NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 28 of 60 12058-85-4 Sodium phosphide (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.0 4.0 2.0 0.50 0.25 AEGL 3 7.2 7.2 3.6 0.90 0.45 NR = Not recommended due to insufficient data 12504-13-1 Strontium phosphide (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 2.0 2.0 1.0 0.25 0.13 AEGL 3 3.6 3.6 1.8 0.45 0.23 NR = Not recommended due to insufficient data 13463-39-3 Nickel carbonyl (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.10 0.072 0.036 0.0090 0.0045 AEGL 3 0.46 0.32 0.16 0.040 0.020 NR = Not recommended due insufficient data 13463-40-6 Iron pentacarbonyl (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.077 0.077 0.060 0.037 0.025 AEGL 3 0.23 0.23 0.18 0.11 0.075 NR = Not recommended due to lack of data

19287-45-7 Diborane (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 2.0 2.0 1.0 0.25 0.13 AEGL 3 7.3 7.3 3.7 0.92 0.46 NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 29 of 60 20770-41-6 Potassium phosphide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.0 4.0 2.0 0.50 0.25 AEGL 3 7.2 7.2 3.6 0.90 0.45 NR = Not recommended due to insufficient data 20859-73-8 Aluminum phosphide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.0 4.0 2.0 0.50 0.25 AEGL 3 7.2 7.2 3.6 0.90 0.45 NR = Not recommended due to insufficient data 27137-85-5 Trichlorophenylsilane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.60 0.60 0.60 0.60 0.60 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 210 70 33 8.7 8.7 50782-69-9 Agent VX (ppm)[mg/m 3 ]

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.000052 [0.00057] 0.000030 [0.00033] 0.000016 [0.00017] 0.0000091 [0.00010] 0.0000065 [0.000071] AEGL 2 0.00065 [0.0072] 0.00038 [0.0042] 0.00027 [0.0029] 0.00014 [0.0015] 0.000095 [0.0010] AEGL 3 0.0027 [0.029] 0.0014 [0.015] 0.00091 [0.010] 0.00048 [0.0052] 0.00035 [0.0038] 70892-10-3 and 8008-20-6 Jet Fuels (JP-5 and JP-8) (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 290 290 290 290 290 AEGL 2 1,100 1,100 1,100 1,100 1,100 AEGL 3 NR NR NR NR NR NR = Not recommended due to insufficient dataOctober 30, 2013 Final AEGLs

Page 30 of 60 163702-07-6 and 163702-08-7 (HFE-7100) Methyl non afluorobutyl ether (40%) and Methyl nonafluoroisobutyl ether (60%) (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 2,500 2,500 2,500 2,500 2,500 AEGL 2 8,200 8,200 8,200 8,200 8,200 AEGL 3 15,000 15,000 15,000 15,000 15,000October 30, 2013 Interim AEGLs

Page 31 of 60 

# Interim AEGLs (130)

Interim AEGLs are established following review and cons ideration of public comments by the National Advisory Committee for AEGLs (NAC/AEGL) of public comments on Proposed AEGLs that are published in the Federal Register. Interim AEGLs are available for use by or ganizations while awaiting NRC/NAS peer review and publication of Final AEGLs. (D ates) in parentheses refer to date of th e NAC meeting when the decision was made to raise Proposed AEGLs to Interim status.

50-00-0 Formaldehyde (ppm) 12/12/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.90 0.90 0.90 0.90 0.90 AEGL 2 14 14 14 14 14 AEGL 3 100 70 56 35 35 51-75-2 Nitrogen Mustard-2 (mg/m 3 ) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.13 0.044 0.022 0.0056 0.0028 AEGL 3 2.2 0.74 0.37 0.093 0.047 NR = Not recommended due to insufficient data 56-23-5 Carbon tetrachloride (ppm) 9/13/01

10 min 30 min 60 min 4 hr 8 hr AEGL 1 58 58 44 25 19 AEGL 2 380 250 190 100 81 AEGL 3 1100 680 520 300 220 56-38-2 Parathion (mg/m 3 ) 9/21/09

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 2.8 1.9 1.5 0.96 0.48 AEGL 3 3.6 2.5 2.0 1.3 0.63 NR = Not recommended due to insufficient dataOctober 30, 2013 Interim AEGLs

Page 32 of 60 67-56-1 Methanol (ppm) 4/20/04

10 min 30 min 60 min 4 hr 8 hr AEGL 1 670 670 530 340 270 AEGL 2 11,000* 4,000 2,100 730 520 AEGL 3 ** See below 14,000* 7,200* 2,400 1,600 Lower Explosive Limit (LEL) = 55,000 ppm * = ≥ 10% LEL; ** = ≥ 50% LEL AEGL 3 - 10 min = ** 40,000 ppm For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. For values denoted as ** extreme safety considerations agains t the hazard(s) of explosion(s) must be taken into account Level of Distinct Odor Awarenes (LOA) = 8.9 ppm 67-64-1 Acetone (ppm) 4/14/05

10 min 30 min 60 min 4 hr 8 hr AEGL 1 200 200 200 200 200 AEGL 2 9,300 * 4,900 * 3,200 * 1,400 950 AEGL 3 **see below 8,600 * 5,700 * 2,500 1,700 Lower Explosive Limit (LEL) = 26,000 ppm * = ≥ 10% LEL; ** = ≥ 50% LEL AEGL 3 - 10 min = ** 16,000 ppm For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. For values denoted as ** extreme safety considerations agains t the hazard(s) of explosion(s) must be taken into account Level of Distinct Odor Awareness (LOA) = 160 ppm

71-43-2 Benzene (ppm) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 130 73 52 18 9.0 AEGL 2 2,000* 1,100 800 400 200 AEGL 3 **see below 5,600* 4,000* 2,000* 990 Lower Explosive Limit (LEL) = 14,000 ppm * = ≥ 10% LEL; ** = ≥ 50% LEL AEGL 3 - 10 min = ** 9,700 ppm For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. For values denoted as ** extreme safety considerations agains t the hazard(s) of explosion(s) must be taken into accountOctober 30, 2013 Interim AEGLs

Page 33 of 60 71-55-6 1,1,1-Trichloroethane (ppm) 4/26/00

10 min 30 min 60 min 4 hr 8 hr AEGL 1 230 230 230 230 230 AEGL 2 930 670 600 380 310 AEGL 3 4,200 4,200 4,200 2,700 2,100

74-89-5 Methyl amine (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 15 15 15 15 15 AEGL 2 160 92 64 31 21 AEGL 3 910 510 350 170 110 Level of Distinct Odor Awareness = 0.56 ppm

75-04-7 Ethylamine (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 7.5 7.5 7.5 7.5 7.5 AEGL 2 150 76 49 22 14 AEGL 3 810 420 270 120 76 Level of Distinct Odor Awareness = 0.74 ppm 75-05-8 Acetonitrile (ppm) 03/20/07

10 min 30 min 60 min 4 hr 8 hr AEGL 1 13 13 13 13 13 AEGL 2 490 490 320 130 86 AEGL 3 1000 1000 670 280 180 75-07-0 Acetaldehyde (ppm) 11/13/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 45 45 45 45 45 AEGL 2 340 340 270 170 110 AEGL 3 1100 1100 840 530 260 Level of Distinct Odor Awareness (LOA)= 0.56 ppmOctober 30, 2013 Interim AEGLs

Page 34 of 60 75-09-2 Methylene chloride (ppm) 11/13/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 290 230 200 NR NR AEGL 2 1700 1200 560 100 60 AEGL 3 12,000 8,500 6,900 4,900 2,100

75-50-3 Trimethyl amine (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 8.0 8.0 8.0 8.0 8.0 AEGL 2 240 150 120 67 51 AEGL 3 750 490 380 220 170 Level of Distinct Odor Awareness = 0.00051 ppm

76-06-2 Chloropicrin (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.050 0.050 0.050 0.050 0.050 AEGL 2 0.15 0.15 0.15 0.15 0.15 AEGL 3 2.0 2.0 1.4 0.79 0.58 77-78-1 Dimethyl sulfate (ppm) 11/13/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.035 0.035 0.024 0.012 0.0087 AEGL 2 0.17 0.17 0.12 0.061 0.043 AEGL 3 4.0 2.3 1.6 0.82 0.58 78-82-0 Isobutyronitrile (ppm) 9/17/03

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 33 23 18 11 7.5 AEGL 3 120 85 68 17 8.5 NR = Not recommended due to insufficient dataOctober 30, 2013 Interim AEGLs

Page 35 of 60 78-85-3 Methacrylaldehyde (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.20 0.20 0.20 0.20 0.20 AEGL 2 3.5 3.5 2.8 1.8 1.1 AEGL 3 5.9 5.9 4.7 2.9 1.9

78-94-4 Methyl vinyl ketone (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.17 0.17 0.17 0.17 0.17 AEGL 2 1.5 1.5 1.2 0.76 0.50 AEGL 3 3.1 3.1 2.4 1.5 1.0 79-01-6 Trichloroethylene ( ppm) 12/13/04

10 min 30 min 60 min 4 hr 8 hr AEGL 1 260 180 130 84 77 AEGL 2 960 620 450 270 240 AEGL 3 6,100 6,100 3,800 1,500 970 79-04-9 Chloroacetyl chloride (ppm) 11/13/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.040 0.040 0.040 0.040 0.040 AEGL 2 2.9 2.0 1.6 0.40 0.20 AEGL 3 95 66 52 13 6.5 79-10-7 Acrylic acid (ppm) 12/10/03

10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.5 1.5 1.5 1.5 1.5 AEGL 2 68 68 46 21 14 AEGL 3 480 260 180 85 58 NR = Not recommended due to insufficient dataOctober 30, 2013 Interim AEGLs

Page 36 of 60 79-22-1 Methyl chloroformate (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.0 2.8 2.2 1.4 0.70 AEGL 3 12 8.5 6.7 4.2 2.1 NR = Not recommended due to insufficient data

79-36-7 Dichloroacetyl Chloride (ppm) 11/13/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.040 0.040 0.040 0.040 0.040 AEGL 2 2.9 2.0 1.6 0.40 0.20 AEGL 3 95 66 52 13 6.5 79-38-9 Trifluorochloroethylene (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 29 20 16 10 10 AEGL 2 160 110 86 54 54 AEGL 3 1500 690 420 150 91 79-41-4 Methacrylic acid (ppm) 12/12/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 6.7 6.7 6.7 6.7 6.7 AEGL 2 76 76 61 38 25 AEGL 3 280 280 220 140 71

80-62-6 Methyl methacrylate (ppm) 12/12/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 17 17 17 17 17 AEGL 2 150 150 120 76 50 AEGL 3 720 720 570 360 180 Level of Distinct Odor Awareness (LOA) = 0.11 ppmOctober 30, 2013 Interim AEGLs

Page 37 of 60 92-52-4 Biphenyl (ppm) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 12 12 9.6 6.0 4.4 AEGL 3 NR NR NR NR NR NR = Not recommended due to insufficient data 98-82-8 Cumene (ppm) 11/13/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 50 50 50 50 50 AEGL 2 550 380 300 190 130 AEGL 3 1300 920 730 460 300 Level of Distinct Odor Awareness (LOA) = 0.017 ppm 100-41-4 Ethyl benzene (ppm) 9/21/09 10 min 30 min 60 min 4 hr 8 hr AEGL 1 33 33 33 33 33 AEGL 2 2900 1600 1100 660 580 AEGL 3 4700 2600 1800 1000 910 100-42-5 Styrene (ppm) 12/12/06 10 min 30 min 60 min 4 hr 8 hr AEGL 1 20 20 20 20 20 AEGL 2 230 160 130 130 130 AEGL 3 1,900* 1,900* 1,100* 340 340 Lower Explosive Limit (LEL) = 9,000 ppm * = ≥ 10% LEL For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. Level of Distinct Odor Awareness (LOA) = 0.54 ppmOctober 30, 2013 Interim AEGLs

Page 38 of 60 100-47-0 Benzonitrile (ppm) 11/13/06 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 39 27 22 11 5.6 AEGL 3 100 71 56 23 11 NR = Not recommended due to insufficient data

106-88-7 1,2-Butylene oxide (ppm) 9/21/09 10 min 30 min 60 min 4 hr 8 hr AEGL 1 72 72 72 72 72 AEGL 2 140 140 140 140 140 AEGL 3 410 410 330 210 210 Level of Distinct Odor Awareness (LOA) = 0.15 ppm 106-89-8 Epichlorohydrin (ppm) 12/13/04 10 min 30 min 60 min 4 hr 8 hr AEGL 1 5.7 5.7 5.7 5.7 5.7 AEGL 2 53 53 24 14 10 AEGL 3 570 160 72 44 30 106-93-4 1,2-Dibromoethane (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 52 26 17 7.1 4.6 AEGL 2 73 37 24 10 6.5 AEGL 3 170 76 46 17 10October 30, 2013 Interim AEGLs

Page 39 of 60 106-99-0 1,3-Butadiene (ppm) 11/13/06 10 min 30 min 60 min 4 hr 8 hr AEGL 1 670 670 670 670 670 AEGL 2 *6700 *6700 *5300 *3400 *2700 AEGL 3 ***27,000 ***27,000 ***22,000 **14,000 *6,800 Lower Explosive Limit (LEL) = 20,000 ppm * = ≥ 10% LEL; ** = ≥ 50% LEL; *** = ≥ 100% LEL AEGL 3 - 4 hr = ** 14,000 ppm For values denoted as * safety considerations against th e hazard(s) of explosion(s) must be taken into account. For values denoted as ** extreme safety considerations ag ainst the hazard(s) of explosion(s) must be taken into account Level of Distinct Odor Awareness = 3.7 ppm 107-05-1 Allyl chloride (ppm) 05/16/08 10 min 30 min 60 min 4 hr 8 hr AEGL 1 2.8 2.8 2.8 2.8 2.8 AEGL 2 69 69 54 34 22 AEGL 3 180 180 140 90 60 107-07-3 Ethylene chlorohydrin (2-C hloroethanol) (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 7.0 5.0 4.0 1.6 0.77 AEGL 3 21 15 12 4.7 2.3 NR = Not recommended due to insufficient data 107-12-0 Propioni trile (ppm) 9/17/03 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 9.0 9.0 7.0 2.9 1.4 AEGL 3 46 46 37 23 12 NR = Not recommended due to insufficient dataOctober 30, 2013 Interim AEGLs

Page 40 of 60 107-13-1 Acrylonitrile (ppm) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 4.6 4.6 4.6 4.6 4.6 AEGL 2 290 110 57 16 8.6 AEGL 3 480 180 100 35 19 107-14-2 Chloroacetonitrile (ppm) 03/20/07 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 49 49 32 13 8.6 AEGL 3 100 100 67 28 18 NR = Not recommended due to insufficient data 107-18-6 Allyl alcohol (ppm) 6/12/01 10 min 30 min 60 min 4 hr 8 hr AEGL 1 9.3 6.4 5.1 2.2 1.0 AEGL 2 87 27 13 3.1 1.5 AEGL 3 260 82 40 9.3 4.5 108-23-6 Isopropyl chloroformate (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 6.0 4.3 3.3 0.83 0.43 AEGL 3 18 13 10 2.5 1.3 NR = Not recommended due to insufficient data 108-88-3 Toluene (ppm) 12/10/02 10 min 30 min 60 min 4 hr 8 hr AEGL 1 200 200 200 200 200 AEGL 2 3,100* 1,600* 1,200 790 650 AEGL 3 ** 13,000 6,100* 4,500* 3,000* 2,500* Lower Explosive Limit (LEL) = 14,000 ppm * = ≥ 10% LEL; ** = ≥ 50% LEL For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. For values denoted as ** extreme safety considerations against the hazard(s) of explosion(s) must be taken into accountOctober 30, 2013 Interim AEGLs

Page 41 of 60 109-61-5 Propyl chloroformate (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 6.7 4.7 3.7 0.90 0.47 AEGL 3 20 14 11 2.7 1.4 NR = Not recommended due to insufficient data 109-77-3 Malononitrile (ppm) 3/20/07 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 7.5 7.5 4.9 2.0 1.3 AEGL 3 15 15 10 4.3 2.8 NR = Not recommended due to insufficient data

116-14-3 Tetrafluoroethylene (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 270 270 220 140 90 AEGL 2 690 690 550 340 230 AEGL 3 4200 4200 3300 2100 1000 116-15-4 Hexafluoropropylene (ppm) 10/19/2007 10 min 30 min 60 min 4 hr 8 hr AEGL 1 150 67 40 14 8.3 AEGL 2 350 150 91 32 19 AEGL 3 1800 800 480 170 100 121-45-9 Trimethyl phosphite (ppm) 8/28/2010 10 min 30 min 60 min 4 hr 8 hr AEGL 1 11 7.6 6.1 3.8 2.5 AEGL 2 110 77 61 38 25 AEGL 3 560 390 310 160 81October 30, 2013 Interim AEGLs

Page 42 of 60 121-75-5 Malathion (mg/m 3 ) 9/21/09 10 min 30 min 60 min 4 hr 8 hr AEGL 1 15 15 15 15 15

AEGL 2 150 150 120 77 50 AEGL 3 500 500 390 250 140

123-38-6 Propionaldehyde (ppm) 11/13/06 10 min 30 min 60 min 4 hr 8 hr AEGL 1 45 45 45 45 45 AEGL 2 330 330 260 170 110 AEGL 3 1,100 1,100 840 530 260 Level of Distinct Odor Awareness = 0.64 ppm 123-91-1 1,4-Dioxane (ppm) 10/25/04 10 min 30 min 60 min 4 hr 8 hr AEGL 1 17 17 17 17 17 AEGL 2 580 400 320 200 100 AEGL 3 950 950 760 480 240 Level of Distinct Odor Awareness (LOA) = 1.7 ppm 124-40-3 Dimethylamine (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 10 10 10 10 10 AEGL 2 130 85 66 40 32 AEGL 3 480 320 250 150 120 Level of Distinct Odor Awareness = 0.53 ppm

126-98-7 Methacrylonitrile (ppm) 11/13/06 10 min 30 min 60 min 4 hr 8 hr AEGL 1 2.0 2.0 1.0 1.0 1.0 AEGL 2 16 16 13 6.5 6.5 AEGL 3 32 32 25 13 13October 30, 2013 Interim AEGLs

Page 43 of 60 127-18-4 Tetrachloroethylene (ppm) 6/12/01 10 min 30 min 60 min 4 hr 8 hr AEGL 1 35 35 35 35 35 AEGL 2 230 230 230 120 81 AEGL 3 1,600 1,600 1,200 580 410 140-88-5 Ethyl acrylate (ppm) 12/12/06 10 min 30 min 60 min 4 hr 8 hr AEGL 1 8.3 8.3 8.3 8.3 8.3 AEGL 2 66 45 36 19 9.4 AEGL 3 950 410 240 71 41 141-32-2 n-Butyl acrylate (ppm) 12/12/06 10 min 30 min 60 min 4 hr 8 hr AEGL 1 8.3 8.3 8.3 8.3 8.3 AEGL 2 160 160 130 81 53 AEGL 3 820 820 480 170 97

143-33-9 Sodium cyanide (mg/m 3 ) 8/28/2010 10 min 30 min 60 min 4 hr 8 hr AEGL 1 5.0 5.0 4.0 2.6 2.0 AEGL 2 34 20 14 7.0 5.0 AEGL 3 54 42 30 17 13 151-50-8 Potassium cyanide (mg/m 3 ) 8/28/2010 10 min 30 min 60 min 4 hr 8 hr AEGL 1 6.6 6.6 5.3 3.5 2.7 AEGL 2 45 27 19 9.3 6.6 AEGL 3 72 56 40 23 18October 30, 2013 Interim AEGLs

Page 44 of 60 298-00-0 Methyl parathion (mg/m 3 ) 9/21/09

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 2.1 1.5 1.2 0.73 0.37 AEGL 3 6.4 4.4 3.5 2.2 1.1 NR = Not recommended due to insufficient data 298-02-2 Phorate (mg/m 3 ) 9/21/09

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.073 0.050 0.040 0.010 0.0050 AEGL 3 0.22 0.15 0.12 0.031 0.015 NR = Not recommended due to insufficient data 353-50-4 Carbonyl fluoride (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.35 0.35 0.28 0.17 0.087 AEGL 3 1.0 1.0 0.83 0.52 0.26 NR = Not recommended due to insufficient data 382-21-8 Perfluoroisobutylene (ppm) 8/28/2010

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.67 0.22 0.11 0.028 0.014 AEGL 3 2.0 0.67 0.33 0.083 0.042 NR = Not recommended due to insufficient data 460-19-5 Cyanogen (ppm) 9/21/09

10 min 30 min 60 min 4 hr 8 hr AEGL 1 2.5 2.5 2.0 1.3 1.0 AEGL 2 50 17 8.3 4.3 4.3 AEGL 3 150 50 25 13 13October 30, 2013 Interim AEGLs

Page 45 of 60 463-51-4 Ketene (ppm) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.24 0.24 0.19 0.12 0.088 AEGL 2 0.83 0.83 0.66 0.42 0.23 AEGL 3 2.5 2.5 2.0 1.2 0.68 463-58-1 Carbonyl sulfide (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 69 69 55 34 23 AEGL 3 190 190 150 95 48 NR = Not recommended due to lack of warning properties 501-53-1 Benzyl chloroformate (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1.2 1.2 0.97 0.63 0.31 AEGL 3 3.7 3.7 2.9 1.9 0.93 NR = Not recommended due to insufficient data 538-07-8 Nitrogen Mustard-1 (mg/m 3 ) 10/19/07

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.13 0.044 0.022 0.0056 0.0028 AEGL 3 2.2 0.74 0.37 0.093 0.047 NR = Not recommended due to insufficient data 541-41-3 Ethyl chloroformate (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 2.9 2.0 1.6 0.40 0.20 AEGL 3 8.8 6.1 4.8 1.2 0.60 NR = Not recommended due to insufficient dataOctober 30, 2013 Interim AEGLs

Page 46 of 60 543-27-1 Isobutyl chloroformate (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.0 2.8 2.2 0.57 0.28 AEGL 3 12 8.4 6.7 1.7 0.83 NR = Not recommended due to insufficient data 555-77-1 Nitrogen Mustard-3 (mg/m 3 ) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.13 0.044 0.022 0.0056 0.0028 AEGL 3 2.2 0.74 0.37 0.093 0.047 NR = Not recommended due to insufficient data

578-94-9 Adamsite (mg/m 3 ) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.20 0.041 0.016 0.0022 0.00083 AEGL 2 9.7 6.8 2.6 0.36 0.14 AEGL 3 21 17 6.4 0.91 0.34 592-01-8 Calcium cyanide (mg/m 3 ) 8/28/2010

10 min 30 min 60 min 4 hr 8 hr AEGL 1 4.7 4.7 3.8 2.4 1.9 AEGL 2 32 19 13 6.6 4.7 AEGL 3 51 39 28 16 12 592-34-7 n-Butyl chloroformate (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.0 2.8 2.2 0.57 0.28 AEGL 3 12 8.4 6.7 1.7 0.83 NR = Not recommended due to insufficient dataOctober 30, 2013 Interim AEGLs

Page 47 of 60 593-89-5 Methyldichloroarsine (mg/m 3 ) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.63 0.14 0.053 0.015 0.0063 AEGL 3 1.9 0.42 0.16 0.044 0.019 NR = Not recommended due to insufficient data 598-14-1 Ethyldichloroarsine (mg/m 3 ) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.17 0.057 0.029 NR NR AEGL 3 0.52 0.17 0.086 NR NR NR = Not recommended due to insufficient data

674-82-8 Diketene (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 11 7.7 6.0 1.5 0.77 AEGL 3 33 23 18 4.5 2.3 NR = Not recommended due to insufficient data 696-28-6 Phenyl dichloroarsine (mg/m 3 ) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.37 0.12 0.061 NR NR AEGL 3 1.1 0.37 0.18 NR NR NR = Not recommended due to insufficient data 712-48-1 Diphenylchloroarsine (mg/m 3 ) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1.1 0.79 0.39 0.098 0.049 AEGL 3 3.4 2.4 1.2 0.30 0.15 NR = Not recommended due to insufficient dataOctober 30, 2013 Interim AEGLs

Page 48 of 60 868-85-9 Dimethyl phosphite (ppm) 8/28/2010

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 120 120 95 60 39 AEGL 3 190 190 150 96 63 NR = Not recommended due to insufficient data 1327-53-3 Arsenic trioxide (mg/m 3 ) 10/19/2007 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 3.7 3.7 3.0 1.9 1.2 AEGL 3 11 11 9.1 5.7 3.7 NR = Not recommended due to insufficient data

1634-04-4 Methyl-tertiary-butyl ether (MTBE) (ppm) 12/5/07 10 min 30 min 60 min 4 hr 8 hr AEGL 1 50 50 50 50 50 AEGL 2 1400 800 570 400 400 AEGL 3 ** *7500 *5300 *2700 *1900 Lower Explosive Limit (LEL) = (16,000) * = ≥ 10% LEL ** = ≥ 50% LEL NR = Not recommended due to insufficient data AEGL 3 - 10 min = ** 13,000 ppm For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. For values denoted as ** extreme safety considerations 1794-86-1 Phosgene oxime (mg/m 3 ) 8/28/2010 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.17 0.056 0.028 0.0069 0.0035 AEGL 2 0.50 0.17 0.083 0.021 0.010 AEGL 3 36 25 13 3.1 1.6October 30, 2013 Interim AEGLs

Page 49 of 60 1885-14-9 Phenyl chloroformate (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.24 0.24 0.19 0.12 0.060 AEGL 3 0.72 0.72 0.57 0.36 0.18 NR = Not recommended due to insufficient data 2698-41-1 Tear Gas (mg/m 3 ) 9/21/09

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.050 0.050 0.050 0.050 0.050 AEGL 2 0.50 0.50 0.50 0.50 0.50 AEGL 3 140 29 11 1.5 1.5 2699-79-8 Sulfuryl fluoride (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 27 27 21 13 6.7 AEGL 3 81 81 64 40 20 NR = Not recommended due to insufficient data 2937-50-0 Allyl chloroformate (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1.3 0.87 0.70 0.18 0.090 AEGL 3 3.8 2.6 2.1 0.53 0.26 NR = Not recommended due to insufficient data 2941-64-2 Ethylchlorothioformate (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.33 0.33 0.26 0.17 0.083 AEGL 3 1.0 1.0 0.79 0.50 0.25 NR = Not recommended due to insufficient dataOctober 30, 2013 Interim AEGLs

Page 50 of 60 3282-30-2 Trimethylacetyl chloride (ppm) 9/21/09

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.67 0.67 0.53 0.33 0.22 AEGL 3 2.0 2.0 1.6 0.99 0.65 NR = Not recommended due to insufficient data 7439-97-6 Mercury Vapor (mg/m 3 ) 8/28/2010

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 3.1 2.1 1.7 0.67 0.33 AEGL 3 16 11 8.9 2.2 2.2 7440-43-9 Cadmium (mg/m 3 ) 8/28/2010

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.13 0.13 0.10 0.063 0.041 AEGL 2 1.4 0.96 0.76 0.40 0.20 AEGL 3 8.5 5.9 4.7 1.9 0.93

7446-11-9 Sulfur trioxide (mg/m 3 ) 11/13/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.20 0.20 0.20 0.20 0.20 AEGL 2 8.7 8.7 8.7 8.7 8.7 AEGL 3 270 200 160 110 93 7550-45-0 Titanium tetrachloride (ppm) 12/12/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 7.6 2.2 1.0 0.21 0.094 AEGL 3 38 13 5.7 2.0 0.91 NR = Not recommended due to insufficient data 7664-93-9 Sulfuric acid (mg/m 3 ) 11/13/06

10 min 30 min 60 min 4 hr 8 hrOctober 30, 2013 Interim AEGLs

Page 51 of 60

AEGL 1 0.20 0.20 0.20 0.20 0.20 AEGL 2 8.7 8.7 8.7 8.7 8.7 AEGL 3 270 200 160 110 93

7719-09-7 Thionyl chloride (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.3 3.0 2.4 0.59 0.30 AEGL 3 25 17 14 3.4 1.7 NR = Not recommended due to insufficient data 7782-65-2 Germane (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.30 0.21 0.17 0.040 0.020 AEGL 3 0.91 0.63 0.50 0.13 0.060 NR = Not recommended due to insufficient data

7783-07-5 Hydrogen selenide (ppm) 4/14/10

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.66 0.44 0.33 0.20 0.15 AEGL 3 2.2 1.4 1.1 0.65 0.49 NR = Not recommended due to insufficient data 7783-41-7 Oxygen difluoride (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.3 1.6 0.83 0.24 0.13 AEGL 3 13 4.7 2.5 0.71 0.38 NR = Not recommended due to insufficient dataOctober 30, 2013 Interim AEGLs

Page 52 of 60 7783-54-2 Nitrogen trifluoride (ppm) 9/21/09

10 min 30 min 60 min 4 hr 8 hr AEGL 1 1200 400 200 50 25 AEGL 2 3100 1100 530 140 68 AEGL 3 5000 1700 860 220 110 7783-61-1 Silicon tetrafluoride (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.05 0.05 0.05 0.05 0.05 AEGL 2 6.3 4.3 3.3 0.87 0.43 AEGL 3 19 13 10 2.6 1.3 7783-79-1 Selenium hexafluoride (ppm) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.067 0.067 0.053 0.033 0.017 AEGL 2 0.11 0.11 0.087 0.057 0.028 AEGL 3 0.33 0.33 0.26 0.17 0.083

7783-80-4 Tellurium hexafluoride (ppm) 8/28/2010

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.032 0.022 0.018 0.011 0.0057 AEGL 3 0.096 0.067 0.053 0.033 0.017 NR = Not recommended due to insufficient data

7787-71-5 Bromine trifluoride (ppm) 11/13/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.12 0.12 0.12 0.12 0.12 AEGL 2 8.1 3.5 2.0 0.70 0.41 AEGL 3 84 36 21 7.3 7.3October 30, 2013 Interim AEGLs

Page 53 of 60 7789-30-2 Bromine pentafluoride (ppm) 4/14/10

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 3.0 2.0 1.0 0.48 0.33 AEGL 3 79 55 33 8.3 4.2 NR = Not recommended due to insufficient data 7790-94-5 Chlorosulfonic acid (mg/m 3 ) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.10 0.10 0.10 0.10 0.10 AEGL 2 4.4 4.4 4.4 4.4 4.4 AEGL 3 45 31 25 6.1 6.1 7803-52-3 Stibine (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.2 2.9 1.5 0.36 0.18 AEGL 3 28 19 9.6 2.4 1.2 NR = Not recommended due to insufficient data

7803-62-5 Silane (ppm) 10/19/2007

10 min 30 min 60 min 4 hr 8 hr AEGL 1 100 100 100 NR NR AEGL 2 170 170 130 80 42 AEGL 3 300 300 270 170 80 NR = Not recommended due to insufficient data 8014-95-7 Oleum (mg/m 3 ) 11/13/06

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.20 0.20 0.20 0.20 0.20 AEGL 2 8.7 8.7 8.7 8.7 8.7 AEGL 3 270 200 160 110 93October 30, 2013 Interim AEGLs

Page 54 of 60 10025-67-9 Disulfur dichloride (ppm) 11/13/06 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.67 0.67 0.53 0.33 0.17 AEGL 2 8.1 8.1 6.4 4.0 2.0 AEGL 3 19 19 15 9.6 4.8

10034-85-2 * Hydrogen Iodide (ppm) 4/14/10 10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.0 1.0 1.0 1.0 1.0 AEGL 2 150 50 25 13 13 AEGL 3 740 250 120 31 31 * Values based on Hydrogen Bromide (insufficient information for HI) 10035-10-6 Hydrogen Bromide (ppm) 4/14/10 10 min 30 min 60 min 4 hr 8 hr AEGL 1 1.0 1.0 1.0 1.0 1.0 AEGL 2 150 50 25 13 13 AEGL 3 740 250 120 31 31

10294-33-4 Boron tribromi de (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.33 0.33 0.33 0.33 0.33 AEGL 2 33 14 7.3 3.7 3.7 AEGL 3 250 83 40 10 10

13637-63-3 Chlorine pentafluoride (ppm) 11/13/06 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.30 0.30 0.30 NR NR AEGL 2 3.0 2.0 1.0 0.48 0.33 AEGL 3 21 12 8.0 3.9 2.7 NR = Not Recommended due to inadequate dataOctober 30, 2013 Interim AEGLs

Page 55 of 60 13863-41-7 Bromine chloride (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.50 0.50 0.50 0.50 0.50 AEGL 2 3.2 3.2 2.5 1.6 1.2 AEGL 3 9.5 9.5 7.6 4.8 3.5 17462-58-7 sec-Butyl chloroformate (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 4.0 2.8 2.2 0.57 0.28 AEGL 3 12 8.4 6.7 1.7 0.83 19624-22-7 Pentaborane (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.56 0.24 0.14 0.048 0.028 AEGL 3 2.8 1.2 0.70 0.24 0.14 NR = Not recommended due to insufficient data

20816-12-0 Osmium tetroxide (ppm) (May 16, 2008)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.015 0.011 0.0084 0.0033 0.0017 AEGL 3 5.0 5.0 4.0 2.5 2.0 NR = Not recommended due to insufficient data

24468-13-1 2-Ethylhexylchlorof ormate (ppm) (May 16, 2008) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1.2 1.2 0.97 0.60 0.30 AEGL 3 3.6 3.6 2.9 1.8 0.91 NR = Not recommended due to insufficient dataOctober 30, 2013 Proposed AEGLs

Page 56 of 60 

# Proposed AEGLs (12)

Proposed AEGLs are published in the Federal Register for pu blic comment following review and concurrence of Draft AEGLs by the NAC/AEGL. 62-73-7 Dichlorvos (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 0.11 0.11 0.11 0.11 0.11 AEGL 2 0.56 0.56 0.56 0.56 0.56

AEGL 3 8.0 8.0 8.0 8.0 8.0

74-88-4 Methyl iodide (ppm)

10 min 30 min 60 min 4 hr 8 hr AEGL 1 54 31 22 11 11 AEGL 2 200 120 82 41 29 AEGL 3 670 400 290 150 98 116-06-3 Aldicarb (mg/m 3 ) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.16 0.11 0.087 0.053 0.027 AEGL 3 0.47 0.32 0.26 0.16 0.081 141-66-2 Dicrotophos (mg/m 3 ) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.53 0.37 0.29 0.073 0.037 AEGL 3 1.6 1.1 0.88 0.22 0.11 NR = Not recommended due to insufficient dataOctober 30, 2013 Proposed AEGLs

Page 57 of 60 6923-22-4 Monocrotophos (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.43 0.31 0.24 0.21 0.10 AEGL 3 1.3 0.92 0.73 0.62 0.31 NR = Not recommended due to insufficient data 7723-14-0 Red Phosphorus (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 6.7 4.7 3.7 0.93 0.47 AEGL 2 20 14 11 2.8 1.4 AEGL 3 85 59 47 12 5.9 8006-61-9 Automotive Gasoline (unleaded) (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 730 730 730 730 730 AEGL 2 *7500 *7500 *7500 *7500 *7500 AEGL 3 ND ND ND ND ND ND = Not determined under normal exposure scenarios Lower Explosive Limit (LEL) = 11,000 ppm * ≥ 10% LEL; ** ≥ 50% LEL; *** ≥ 100% LEL AEGL 2 is higher than 1/10 of th e Lower Exposure Limit (LEL = 62,000 mg/m 3 ) For values denoted as * safety considerations against the h azard(s) of explosion(s) mu st be taken into account. 10265-92-6 Methamidophos (mg/m 3 ) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 2.4 2.4 1.9 1.2 0.61 AEGL 2 4.5 4.5 3.6 2.3 1.1 AEGL 3 10 10 8.1 5.1 2.5October 30, 2013 Proposed AEGLs

Page 58 of 60 13171-21-6 Phosphamidon (mg/m 3 ) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 0.37 0.37 0.30 0.19 0.093 AEGL 3 1.1 1.1 0.90 0.57 0.28 NR = Not recommended due to insufficient data 16752-77-5 Methomyl (mg/m 3 ) 10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 7 7 5.7 3.3 1.7 AEGL 3 21 21 17 10 5.2 NR = Not recommended due to insufficient data 22224-92-6 Fenamiphos (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR AEGL 2 1.0 0.80 0.70 0.53 0.43 AEGL 3 3.0 2.4 2.1 1.6 1.3 NR = Not recommended due to insufficient data 23135-22-0 Oxamyl (mg/m 3 )

10 min 30 min 60 min 4 hr 8 hr AEGL 1 3.6 1.8 1.2 0.49 0.32 AEGL 2 5.3 2.7 1.8 0.73 0.47 AEGL 3 16 8.2 5.3 2.2 1.4October 30, 2013 Holding AEGLs

Page 59 of 60 

# Holding AEGLs (46)

Holding Status AEGLs have been reviewed by the NAC/A EGL Committee and are under further review. At this time values are not being developed.

CAS Number Chemical Name Fluoroacetate salts 62-74-7 Sodium fluoroacetate 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-Dichl o ro-2,4,6-trifluoropyridine 1795-48-8 Isopropyl isocyanate 1873-29-6 Isobutyl isocyanate 2696-92-6 Nitrosyl chloride 354-32-5 Trifluoroa cetyl chloride 4300-97-4 Chloropivaloyl chlorideOctober 30, 2013 Holding AEGLs

Page 60 of 60 CAS Number Chemical Name

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 (mg/m 3 ) 7789-21-1 Fluorosulfonic acid 7803-49-8 Hydroxylamine 7803-54-5 Magnesium diamide 10294-34-5 Boron Trichloride 10544-73-7 Nitrogen trioxide 10545-99-0 Sulfur dichloride 9009-86-3 Ricin (mg/m 3 )*

10 min 30 min 60 min 4 hr 8 hr AEGL 1 NR NR NR NR NR

AEGL 2 NR NR NR NR NR

AEGL 3 0.033 0.010 0.0048 NR NR * Tentative Ricin values pending r eceipt and review of data for April 13-15 2010 NAC/AEGL Meeting