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CAS No.) Screening Justification Is Public Comment Now Open? CAS No EGLE Air Quality Division (AQD) Air Toxics Screening Level Justifications (Numerically by CAS No.) Screening Justification Is Public Comment Now Open? CAS No. Chemical Name Level & Responses Info E-Mail AQD Deadline None ad acid View View Not Open for Public Comment None amyl acetate (mixture) View View Not Open for Public Comment None atlox 848 View View Not Open for Public Comment None biosam tp-1.5 View View Not Open for Public Comment None calcium chloride View View Not Open for Public Comment None epoxy resin solution View View Not Open for Public Comment None heptamethyl-1-vinyl-1,7-dichlorotetrasilazane View View Not Open for Public Comment None n-butylglucamine View View Not Open for Public Comment None n-chloro-2,6-difluorobenzamide View View Not Open for Public Comment None trichloroethylene View View Not Open for Public Comment None triethylammonium suleptanate View View Not Open for Public Comment 50-00-0 formaldehyde View View Not Open for Public Comment 50-03-3 hydrocortisone acetate View View Not Open for Public Comment 50-21-5 lactic acid View View Not Open for Public Comment 50-28-2 estradiol View View Not Open for Public Comment 50-29-3 ddt View View Not Open for Public Comment 50-32-8 benzo(a)pyrene View View Not Open for Public Comment 51-28-5 2,4-dinitrophenol View View Not Open for Public Comment 53-36-1 methyl predisolone acetate View View Not Open for Public Comment 53-70-3 dibenz(a,h)anthracene View View Not Open for Public Comment 56-23-5 carbon tetrachloride View View Not Open for Public Comment 56-49-5 3-methylcholanthrene View View Not Open for Public Comment 56-55-3 benz(a)anthracene View View Not Open for Public Comment 56-81-5 glycerol View View Not Open for Public Comment 57-11-4 stearic acid View View Not Open for Public Comment Revised Monday, September 27, 2021 Page 1 of 51 EGLE Air Quality Division (AQD) Air Toxics Screening Level Justifications (Numerically by CAS No.) Screening Justification Is Public Comment Now Open? CAS No. Chemical Name Level & Responses Info E-Mail AQD Deadline 57-12-5 cyanide View View Not Open for Public Comment 57-15-8 chlorobutanol View View Not Open for Public Comment 57-41-0 phenytoin View View Not Open for Public Comment 57-83-0 progesterone View View Not Open for Public Comment 57-97-6 7,12-dimethylbenz(a)anthracene View View Not Open for Public Comment 58-36-6 10,10'-oxybisphenoxarsine oxide View View Not Open for Public Comment 60-29-7 ethyl ether View View Not Open for Public Comment 60-34-4 methyl hydrazine View View Not Open for Public Comment 60-57-1 dieldrin View View Not Open for Public Comment 62-53-3 aniline View View Not Open for Public Comment 62-73-7 dichlorvos View View Not Open for Public Comment 62-75-9 n-nitrosodimethylamine View View Not Open for Public Comment 63-05-8 androstenedione View View Not Open for Public Comment 64-02-8 ethylenediamine tetra-acetic acid, tetrasodium salt View View Not Open for Public Comment 64-04-0 beta phenylethylamine View View Not Open for Public Comment 64-17-5 ethyl alcohol View View Not Open for Public Comment 64-18-6 formic acid View View Not Open for Public Comment 64-19-7 acetic acid View View Not Open for Public Comment 64-67-5 diethyl sulfate View View Not Open for Public Comment 65-85-0 benzoic acid View View Not Open for Public Comment 66-25-1 hexanaldehyde View View Not Open for Public Comment 67-56-1 methanol View View Not Open for Public Comment 67-63-0 isopropyl alcohol View View Not Open for Public Comment 67-64-1 acetone View View Not Open for Public Comment 67-66-3 chloroform View View Not Open for Public Comment Revised Monday, September 27, 2021 Page 2 of 51 EGLE Air Quality Division (AQD) Air Toxics Screening Level Justifications (Numerically by CAS No.) Screening Justification Is Public Comment Now Open? CAS No. Chemical Name Level & Responses Info E-Mail AQD Deadline 67-68-5 dimethylsulfoxide View View Not Open for Public Comment 67-72-1 hexachloroethane View View Not Open for Public Comment 68-12-2 N,N-dimethylformamide View View Not Open for Public Comment 71-23-8 n-propyl alcohol View View Not Open for Public Comment 71-36-3 n-butanol View View Not Open for Public Comment 71-41-0 amyl alcohol View View Not Open for Public Comment 71-43-2 benzene View View Not Open for Public Comment 71-55-6 methyl chloroform View View Not Open for Public Comment 72-54-8 DDD (TDE) View View Not Open for Public Comment 72-55-9 DDE, p,p'- View View Not Open for Public Comment 74-83-9 methyl bromide View View Not Open for Public Comment 74-85-1 ethylene View View Not Open for Public Comment 74-87-3 methyl chloride View View Not Open for Public Comment 74-88-4 methyl iodide View View Not Open for Public Comment 74-89-5 methylamine View View Not Open for Public Comment 74-93-1 methyl mercaptan View View Not Open for Public Comment 74-97-5 chlorobromomethane View View Not Open for Public Comment 74-99-7 methyl acetylene View View Not Open for Public Comment 75-00-3 ethyl chloride View View Not Open for Public Comment 75-01-4 vinyl chloride View View Not Open for Public Comment 75-04-7 ethylamine View View Not Open for Public Comment 75-05-8 acetonitrile View View Not Open for Public Comment 75-07-0 acetaldehyde View View Not Open for Public Comment 75-08-1 ethyl mercaptan View View Not Open for Public Comment 75-09-2 methylene chloride View View Not Open for Public Comment Revised Monday, September 27, 2021 Page 3 of 51 EGLE Air Quality Division (AQD) Air Toxics Screening Level Justifications (Numerically by CAS No.) Screening Justification Is Public Comment Now Open? CAS No. Chemical Name Level & Responses Info E-Mail AQD Deadline 75-12-7 formamide View View Not Open for Public Comment 75-15-0 carbon disulfide View View Not Open for Public Comment 75-18-3 dimethylsulfide View View Not Open for Public Comment 75-21-8 ethylene oxide View View Not Open for Public Comment 75-25-2 bromoform View View Not Open for Public Comment 75-27-4 bromodichloromethane View View Not Open for Public Comment 75-28-5 isobutane View View Not Open for Public Comment 75-29-6 2-chloropropane View View Not Open for Public Comment 75-31-0 isopropylamine View View Not Open for Public Comment 75-34-3 1,1-dichloroethane View View Not Open for Public Comment 75-35-4 vinylidene chloride (1,1-dichloroethylene) View View Not Open for Public Comment 75-36-5 acetyl chloride View View Not Open for Public Comment 75-37-6 1,1-difluoroethane View View Not Open for Public Comment 75-38-7 vinylidene fluoride View View Not Open for Public Comment 75-44-5 phosgene View View Not Open for Public Comment 75-45-6 chlorodifluoromethane View View Not Open for Public Comment 75-50-3 trimethylamine View View Not Open for Public Comment 75-52-5 nitromethane View View Not Open for Public Comment 75-54-7 methyldichlorosilane View View Not Open for Public Comment 75-55-8 1,2-propylenimine View View Not Open for Public Comment 75-56-9 propylene oxide View View Not Open for Public Comment 75-64-9 t-butylamine View View Not Open for Public Comment 75-65-0 t-butanol View View Not Open for Public Comment 75-68-3 1-chloro-1,1-difluoroethane View View Not Open for Public Comment 75-69-4 trichlorofluoromethane View View Not Open for Public Comment Revised Monday, September 27, 2021 Page 4 of 51 EGLE Air Quality Division (AQD) Air Toxics Screening Level Justifications (Numerically by CAS No.) Screening Justification Is Public Comment Now Open? CAS No. Chemical Name Level & Responses Info E-Mail AQD Deadline 75-71-8 dichlorodifluoromethane View View Not Open for Public Comment 75-75-2 methane sulfonic acid View View Not Open for Public Comment 75-76-3 tetramethylsilane View View Not Open for Public Comment 75-77-4 trimethylchlorosilane View View Not Open for Public Comment 75-78-5 dimethyldichlorosilane View View Not Open for Public Comment 75-79-6 methyltrichlorosilane View View Not Open for Public Comment 75-94-5 vinyltrichlorosilane View View Not Open for Public Comment 76-05-1 trifluoroacetic acid View View Not Open for Public Comment 76-13-1 1,1,2-trichloro-1,2,2-trifluoroethane View View Not Open for Public Comment 76-14-2 dichlorotetrafluoroethane View View Not Open for Public Comment 76-44-8 heptachlor View View Not Open for Public Comment 77-47-4 hexachlorocyclopentadiene View View Not Open for Public Comment 77-48-5 1,3-dibromo-5,5-dimethylhydantoin View View Not Open for Public Comment 77-58-7 dibutyl tin dilaurate View View Not Open for Public Comment 77-73-6 dicyclopentadiene View View Not Open for Public Comment 77-76-9 2,2-dimethoxypropane View View Not Open for Public Comment 77-78-1 dimethyl sulfate View View Not Open for Public Comment 77-93-0 triethyl citrate View View Not Open for Public Comment 78-07-9 ethyltriethoxysilane View View Not Open for Public Comment 78-10-4 ethyl silicate View View Not Open for Public Comment 78-59-1 isophorone View View Not Open for Public Comment 78-78-4 2-methyl butane View View Not Open for Public Comment 78-79-5 isoprene View View Not Open for Public Comment 78-83-1 isobutyl alcohol View View Not Open for Public Comment 78-84-2 isobutyraldehyde View View Not Open for Public Comment Revised Monday, September 27, 2021 Page 5 of 51 EGLE Air Quality Division (AQD) Air Toxics Screening Level Justifications (Numerically by CAS No.) Screening Justification Is Public Comment Now Open? 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