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Technical Report for the Substantial Modification Rule for 62-730, F.A.C

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Technical Report for the Substantial Modification Rule for 62-730, F.A.C Technical Report for the Substantial Modification Rule for 62-730, F.A.C. Prepared for the Hazardous Waste Regulation Section Florida Department of Environmental Protection By Kendra F. Goff, Ph. D. Stephen M. Roberts, Ph.D. Center for Environmental & Human Toxicology University of Florida Gainesville, Florida August 1, 2008 During an adverse event, such as a fire or explosion, hazardous materials from a storage or transfer facility may be released into the atmosphere. The potential human health impacts of such a release are assessed through air modeling coupled with chemical-specific inhalation criteria for short-term exposures. With this approach, distances from the facility over which differing levels of health effects from inhalation of airborne hazardous materials are expected can be predicted. Because the movement in air and toxic potency varies among chemicals, the potential impact area for a facility is dependent upon the chemicals present and their quantities. The impact area can be calculated for a facility under current and possible future conditions. This information can be used to determine whether proposed changes in storage conditions or the nature and quantities of chemicals handled would result in a substantial difference in the area of potential impact. The following sections provide technical guidance on how impact areas for facilities handling hazardous materials under Chapter 62-730, F.A.C. should be determined. Air modeling. Any model used for the purposes of demonstration must be capable of producing results in accordance with worst-case scenario provisions of Program 3 of the Accidental Release Prevention Program of s. 112(r)(7) of the Clean Air Act. Choosing Inhalation Criteria. Inhalation criteria for emergency planning are available from a number of sources. Also, inhalation criteria can vary in terms of the duration of exposure they are intended to cover, and the level of effect (i.e., the severity of effects associated with the specified concentration). The three principal sources of inhalation criteria, referred to in this report as ‘endpoints,’ are Acute Exposure Guideline Levels (AEGLs), Emergency Response Planning Guideline (ERPG) values, and Temporary Emergency Exposure Limits (TEELs): AEGLs are developed by the National Research Council’s Committee on Toxicology. Values are derived for five different exposure periods — 10 minutes, 30 minutes, 1 hour, 4 hours, and 8 hours — and are intended to be protective of “the general population, including susceptible individuals.” Peer review of AEGLs is extensive and time-consuming. Only 31 chemicals have finalized AEGLs; another 100 interim AEGLs have been developed and 64 more are proposed. ERPGs are developed by the American Industrial Hygiene Association. ERPGs are based on one hour of contact, and values are available for approximately 130 chemicals. They are intended to be protective of “nearly all individuals.” TEELs are developed by the U.S. Department of Energy Subcommittee on Consequence Assessment and Protective Actions (SCAPA). As with ERPGs, TEELs are based on protection of “nearly all individuals.” They are recommended for comparison with 15-minute time weighted average air concentrations. TEELs are inclusive of AEGLs and ERPG values; that is, AEGL or ERPGs, when they exist, are adopted as TEELs. If no AEGL or ERPG exists, other inhalation criteria or current data is modified to create a TEEL. TEELs are available for almost 3000 additional chemicals. Review of TEELs is less extensive than AEGLs and ERPGs, and they are intended primarily as interim values. Endpoints from any of these sources can be used in calculating impact areas. Based on the level of review that accompanies their development, the sources should be used in the following hierarchy: 1) AEGLs; 2) ERPGs, and 3) TEELs. The U.S. EPA is currently developing an additional set of criteria for short-term exposure, Provisional Advisory Levels (PALs). PALs for inhalation exposure will be available for a relatively wide range of exposure durations, and the level of review associated with their development is expected to produce criteria of high quality. However, the number of chemicals for which PALs are available is small, and will grow relatively slowly. As a result, PALs are not expected to be an important source of values for the purposes of these analyses for some time. Endpoints are available for three levels of effect. Although the precise definitions vary slightly among the three principal sources (AEGLs, ERPGs, and TEELs), in general Level 1 is an air concentration below which only mild, transient effects or objectionable odor is expected. Level 2 is an air concentration below which reversible health effects may occur, but the individual’s ability to take protective action is not impaired. Concentrations above Level 3 may be life threatening or irreversible. For purposes of satisfying requirements of Chapter 62-730, F.A.C., impact areas based on health effects at Level-2 should be identified. CAS Registry No. Chemical Compound Number Endpoint (CAS RN) (mg/m3) 1 Acacia; (Gum Arabic) 9000-01-5 500 2 Acenaphthene 83-32-9 7.5 3 Acenaphthylene 208-96-8 1.25 4 Acetaldehyde 75-07-0 486 5 Acetamide 60-35-5 500 6 Acetanilide 103-84-4 7.5 7 Acetic acid 64-19-7 86 Acetic acid ethenyl ester, polymer with 1,1- 8 27360-07-2 50 bis(ethenyloxy) butane and ethenol 9 Acetic acid, 2-propenyl ester 591-87-7 40 10 Acetic acid, lithium salt 546-89-4 250 11 Acetic acid, manganese(2+) salt, tetrahydrate 6156-78-1 22.3 12 Acetic acid, manganese(II) salt (2:1) 638-38-0 15.7 13 Acetic Anhydride 108-24-7 20 14 Acetone 67-64-1 7,600 15 Acetone thiosemicarbazide 1752-30-3 100 16 Acetone-d6 666-52-4 8,390 17 Acetonitrile 75-05-8 537 18 Acetonitrile-d3 2206-26-0 100 19 Acetophenone 98-86-2 50 20 Acetoxytriphenylstannane 900-95-8 20 21 Acetyl bromide 506-96-7 20 Acetyl carbinol; (Acetol (1); 1-Hydroxy-2- 22 116-09-6 200 propanone) 23 Acetyl chloride 75-36-5 0.15 24 Acetyl triethyl citrate 77-89-4 125 25 Acetylaminofluorene, 2- 53-96-3 6 26 Acetylaminofluorenone, 2- 3096-50-2 15 27 Acetylene 74-86-2 2,500 28 Acrolein 107-02-8 0.229 29 Acrylamide 79-06-1 60 30 Acrylic acid 79-10-7 135 Acrylic acid polymers; (Acrylic polymer or 31 9003-01-4 200 resin) 32 Acrylonitrile 107-13-1 124 33 Acrylyl chloride; (Acryloyl chloride) 814-68-6 0.75 34 Adipic acid 124-04-9 5 35 Adipic acid-TDI 68609-57-4 50 36 Adiponitrile 111-69-3 15 Aerosol, A-102; (Poly(oxy-1,2-ethanediyl), 37 alpha-(3-carboxy-1-oxo-3-sulfopropyl)-omega- 39354-45-5 500 (dodecyloxy0-,-disodium salt) 38 Agar 9002-18-0 500 39 Agarose, type VII (low gelling temperature) 9012-36-6 50 -Endpoints based on AEGLs, ERPGs, or TEELs hierachy -Table based on data from Department of Energy CAS Registry No. Chemical Compound Number Endpoint (CAS RN) (mg/m3) 40 Alamine 336 68814-95-9 500 41 Albumin (bovine) 9048-46-8 500 42 Alcohol oxidase 9073-63-6 50 43 Alcohols, C6-C12 (N.O.S.) 68603-15-6 50 Aldrin; (1,2,3,4,10,10-Hexachloro- 44 1,4,4a,5,8,8a-hexahydro-1,4-endo,exo-5,8- 309-00-2 10 dimethanonaphthalene) 45 Aldrithiol-2: (2,2'-Dithiodipyridene) 2127-03-9 50 Aliquat 336; (Adogen 464; Quaternary 46 ammonium compounds, tri(C8-10)-alkylmethyl- 63393-96-4 500 , chlorides) Alizarin; (1,2-Dihydroxyanthraquinone; Turkey 47 72-48-0 25 red oil) Alizarine Red S, Monohydrate; (Sodium 48 130-22-3 12.5 alizarin-3-sulfonate) 49 Alkanes, C4-12- 68333-81-3 1,500 Alkenyl dimethylethyl ammonium bromide; 50 z-0108 40 (Aliphatic hydrocarbon) 51 Alkyd resins and rosin 66070-62-0 50 52 Alkyl benzenes (C8-C9) z-0109 50 Alkyl dimethylbenzyl ammonium chloride; 53 8001-54-5 100 (Benzalkonium chloride) Alkylamines (includes nitrogen mustard, 54 63231-48-1 50 triethylmelamine, etc.) 55 Alkylbenzene (C10-C16) 68648-87-3 50 56 Allene; (1,2-Propadiene) 463-49-0 1,250 57 Allyl alcohol 107-18-6 9.97 58 Allyl Bromide; (3-Bromopropene) 106-95-6 400 59 Allyl chloride 107-05-1 125 60 Allyl chlorocarbonate 2937-50-0 0.75 61 Allyl isothiocyanate; (Mustard oil) 57-06-7 10 62 Allylamine 107-11-9 7.7 63 Allylmagnesium bromide 1730-25-2 50 Alpha,alpha,4-trimethyl-3-cyclohexene-1- 64 10482-56-1 500 methanol, (S)-; (alpha-Terpineol) Alphahydroxybenzeneacetic acid, (+-)-; (DL- 65 611-72-3 350 mandelic acid) 66 Aluminon 569-58-4 0.0075 67 Aluminum (powder) 7429-90-5 50 68 Aluminum acetate, basic 7360-44-3 44.5 69 Aluminum carbide 1299-86-1 13.3 70 Aluminum chloride 7446-70-0 60 -Endpoints based on AEGLs, ERPGs, or TEELs hierachy -Table based on data from Department of Energy CAS Registry No. Chemical Compound Number Endpoint (CAS RN) (mg/m3) 71 Aluminum chloride hexahydrate 7784-13-6 150 72 Aluminum fluoride 7784-18-1 7.5 Aluminum grey; (Chromium compound; Acid 73 12218-95-0 42.2 black 60) 74 Aluminum hexafluorosilicate 17099-70-6 17.6 75 Aluminum hydroxide 21645-51-2 125 76 Aluminum oxide hydrate 1333-84-2 50 77 Aluminum oxide; (Alumina) 1344-28-1 15 Aluminum phosphate; (Phosphoric acid, 78 7784-30-7 500 aluminum salt (1:1), solution) Aluminum phosphate; (Phosphoric acid, 79 13530-50-2 119 aluminum salt) 80 Aluminum phosphide 20859-73-8 20 81 Aluminum potassium sulfate 10043-67-1 95.7 82 Aluminum potassium sulfate, dodecahydrate 7784-24-9 176 83 Aluminum sulfate 10043-01-3 63.4 Aluminum yellow 4A; (Chromium compound; 84 10343-58-5 25 Acid yellow 39) 85 Aluminum(III) isopropylate 555-31-7 75.7 86 Aluminum(III) nitrate (1:3) 13473-90-0 350 87 Aluminum(III) nitrate nonahydrate (1:3:9) 7784-27-2 150 88 Aluminum(III) silicate (2:1); (Kyanite; Oil-dri) 1302-76-7 75 89 Amberlite IR-120(PLUS) ion-exchange resin 78922-04-0 50 Amberlite IR-120plus ion-exchange resin, 90 9002-23-7 150 sodium form; (Cation exchange resin) Amberlite IRA-400(CI); 91 9002-24-8 50 (Amberlite IRA-400, ion-exchange resin) 122560-63- 92 Amberlite IRA-400(CL); (Ion exchange resin) 50 8 Amberlite MB-1 ion-exchange resin; (Amberlite 100915-96- 93 50 MB-150) 6 104219-63- 94 Amberlite XAD-16, -7, -4 resin 50 8 95 Amberlite XAD-2 resin, purified 9060-05-3 50 Amberlite ZAD-16; (Nonionic polymeric 96 9003-69-4 150 absorbent) 97 Amberlite; (Amberlite XAD7HP) 37380-43-1 50 98 Amberlyst 15 ion-exchange resin 9037-24-5 50 -Endpoints based on AEGLs, ERPGs, or TEELs hierachy -Table based on data from Department of Energy CAS Registry No.
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