Environmental Profiles of Chemical Flame-Retardant Alternatives for

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Results: Proprietary A was not genotoxic at 0.05 mM, but at 0.1 mM, a moderate response was observed in hepatocytes from untreated rats, but not phenobarbital-treated rats. [Chemical 2], the positive control, yielded positive results in induced and non-induced hepatocytes. Reference: Ref. 48 Additional Information A submitted confidential study reported negative results for Proprietary A in cultured primary hepatocytes from male Sprague-Dawley rats. 4-27
Aquatic Organism Toxicity Ecotoxicity Acute Toxicity to Freshwater and Marine Fish (OPPTS Harmonized Guideline 850.1075; OECD Guideline 203) Conclusion: The available acute toxicity data for freshwater fish (cold- and warm-water species) and saltwater fish were judged inadequate to meet the endpoints. The available acute fish toxicity studies are summarized in Table 4-1. However, if the results of Ref. 42, cited by Ref. 29 (see below), are confirmed independently, the acute toxicity endpoint for cold freshwater fish species might be satisfied given the high degree of agreement of the two available studies in rainbow trout. Basis for Conclusion: Freshwater Fish Ref. 2 tested the toxicity to goldfish (Carassius auratus) of Proprietary A released from fabric treated with the flame retardant. Laundered or unlaundered sections of garment that had been treated with [Formulation 2], were placed in tanks with six goldfish. Fish in the tank with the unlaundered section became sluggish and all died within 3 hours. The concentration of [Formulation 2] in the test water reached 30 mg/L. Fish exposed for 96 hours to the laundered section of garment did not exhibit signs of toxicity. In another study, Proprietary A in water at 1 mg/L was not toxic to goldfish after 168 hours, but 5 mg/L of Proprietary A killed all (6/6) goldfish within 24 hours (Ref. 22). Ref. 2 and 21 did not evaluate toxicity using a range of concentrations of Proprietary A in water and, thus, cannot be used to derive an LC 50. Ref. 46 estimated that the 96-hour LC 50 values for killifish (Oryzias latipes) and goldfish were 3.6 mg/L and 5.1 mg/L, respectively. It appears that mortality was not evaluated in a control group of fish. It is unclear if the Proprietary A concentrations in water reported by Ref. 46 are measured or nominal values. The latter point is important because a parallel study indicated that the amount of Proprietary A added to test water declines rapidly and less than 40% of the original amount of Proprietary A remains in the test water after 96 hours (Ref. 46). Thus, the lethal concentrations of Proprietary A could be lower than the reported LC 50 values. Ref. 46 reported deformation of the spine in 7/10 killifish exposed to 3.5 mg/L Proprietary A for 24 hours. However, Ref. 46 does not provide sufficient information regarding the spine deformation in killifish to make meaningful use of these observations. It is unclear whether the deformations were observed in the acute toxicity study or in a separate assay using killifish only. It appears that deformation was tested at only one concentration and a control group of fish was not evaluated. 4-28
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Volume 2 Chemical Hazard Reviews Fu
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LIST OF TABLES Page 1-1 Summary of
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Flame Retardant Alternatives Triphe
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Triphenyl Phosphate: Existing Data
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Type: Acute oral LD50 Species, stra
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concentration was much higher, but
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Vehicle: Not reported, but acute or
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• 90-Day Oral Toxicity in Rodents
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Subchronic Inhalation Toxicity: 90-
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hydroureter, enlarged ureter proxim
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NEUROTOXICITY Conclusion: The avail
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Critical Studies Type: Delayed neur
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Neurotoxicity (Adult) Conclusion: T
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Species, strain, sex, number: Rat,
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Type: Mitotic Gene Conversion Speci
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Study Reference Ahrens et al., 1978
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Study Reference Geiger et al., 1986
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Study Reference Mayer et al., 1981
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Study Reference Sasaki et al., 1981
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those reported in the publicly avai
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Algal Toxicity (OPPTS Harmonized Gu
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Study Reference Millington et al.,
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Chronic Toxicity to Fish (OPPT Harm
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Chronic Toxicity to Aquatic Inverte
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Log K ow Reference 4.63 Saeger, 197
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Oxidation/Reduction: No data Oxidat
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Bioconcentration Environmental Fate
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Fish Metabolism: Conclusion: The me
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Study Type/ Method Innoculum Acclim
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Sediment/Water Biodegradation: Conc
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References Ahrens, V; Henion, J; Ma
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Dorby, A; Keller, R. 1957. Vapor pr
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Johnson, MK. 1975. Organophosphorus
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Perry, R; Green, D. 1984. Vapor pre
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Flame Retardant Alternatives Tribro
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Tribromoneopentyl alcohol: Existing
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Results: Male mortality was 2/5 at
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Additional Study: An acute inhalati
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application, four rabbits displayed
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Bladder effects were seen in some o
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• Combined Repeated Dose Toxicity
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• Immunotoxicity (OPPTS Harmonize
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tissue, one with rabbit tissue) sug
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Acute Toxicity to Aquatic Organisms
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1-Propanol, 2,2-dimethyl-, tribromo
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Environmental Fate Bioconcentration
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References AmeriBrom, Inc. 1982a. A
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Flame Retardant Alternatives Tris(1
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Tris(1,3-dichloro-2-propyl) phospha
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Species, strain, sex, number: Rat,
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Results: No mortality after 14 days
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Additional Studies: Another study,
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occurred in treated groups compared
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high enough to induce significant r
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Doses: 0, 25, 100, and 400 mg/kg/da
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mid-dose of 20 mg/kg/day as a LOAEL
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Critical Studies Type: Acute oral d
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English summary and therefore could
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Basis for Conclusion: TDCPP has bee
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Gene Mutation in Vivo: C Sex-linked
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TDCPP administered as 2,000 mg/kg b
Page 127 and 128: Another study showed that the 96-ho
Page 129 and 130: Study Reference Akzo- Nobel, Inc.,
Page 131 and 132: Study Reference Sasaki et al., 1981
Page 133 and 134: Table 3-2. Summary of available acu
Page 135 and 136: hours (Unpublished study conducted
Page 137 and 138: Terrestrial Organism Toxicity Acute
Page 139 and 140: Oxidation/Reduction: No data Meltin
Page 141 and 142: pH: This chemical does not contain
Page 143 and 144: Species Rate Comment Reference Kill
Page 145 and 146: Pyrolysis Products Reference When h
Page 147 and 148: Brusick, D; Matheson, D; Jagannath,
Page 149 and 150: Majeska, JB; Matheson, DW. 1983. Qu
Page 151 and 152: Thomas, MB; Collier, TA. 1985. Tolg
Page 153 and 154: Proprietary A: Chloroalkyl phosphat
Page 155 and 156: Proprietary A: Chloroalkyl phosphat
Page 157 and 158: Basis for Conclusion: The available
Page 159 and 160: Additional Studies and Information:
Page 161 and 162: Conclusion: The available subchroni
Page 163 and 164: Basis for Conclusion: No repeated-e
Page 165 and 166: Prenatal Developmental Toxicity Stu
Page 167 and 168: Combined Chronic Toxicity/Carcinoge
Page 169 and 170: Basis for Conclusion: The delayed n
Page 171 and 172: histopathological effects in the ne
Page 173 and 174: Immunotoxicity (OPPTS Harmonized Gu
Page 175 and 176: C In vitro Mammalian Cell Gene Muta
Page 177: Chromosomal Aberration in Vivo: C M
Page 181 and 182: Study Reference Species Tested Ref.
Page 185 and 186: Acute Toxicity to Freshwater Invert
Page 187 and 188: Chronic Toxicity to Freshwater and
Page 191 and 192: CAS MF MW SMILES Physical/Chemical
Page 193 and 194: Vapor Pressure (torr//C) Reference
Page 195 and 196: Bioconcentration Environmental Fate
Page 197 and 198: Study type/ Method Innoculum Acclim
Page 199 and 200: Flame Retardant Alternatives Propri
Page 201 and 202: Proprietary B: Aryl phosphate Exist
Page 203 and 204: ACUTE TOXICITY Human Health Endpoin
Page 205 and 206: Additional Studies and Information:
Page 207 and 208: were elevated in all treated groups
Page 209 and 210: Basis for Conclusion: No pertinent
Page 211 and 212: Experiment B. Doses were chosen bas
Page 213 and 214: These studies may be indicated, for
Page 215 and 216: • Mammalian Bone Marrow Chromosom
Page 217 and 218: • Algal Toxicity (OPPTS Harmonize
Page 219 and 220: Bioconcentration Fish: No data Daph
Page 221 and 222: Flame Retardant Alternatives Propri
Page 223 and 224: Proprietary C: Chloroalkyl phosphat
Page 225 and 226: Basis for Conclusion: Acute oral to
Page 227 and 228: Acute Eye Irritation (OPPTS Harmoni
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Critical Studies: Type: Dermal sens
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C Reproduction/Developmental Toxici
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• Combined Chronic Toxicity/Carci
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Gene Mutation in Vitro: • Bacteri
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• Acute Oral Toxicity in Birds (O
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Corrosion Characteristics: No data
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determined at 50°C and it was foun
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Proprietary D: Reactive brominated
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Chemical Identity Proprietary D: Re
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Acute Dermal Irritation (OPPTS Harm
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• Prenatal Developmental Toxicity
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Gene Mutation in vitro C Bacterial
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• Chronic Toxicity to Freshwater
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Bioconcentration Fish: No data Daph
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Proprietary E: Tetrabromophthalate
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Proprietary E: Tetrabromophthalate
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• Reproduction and Fertility Effe
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GENOTOXICITY Conclusion: No availab
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Acute and Subchronic Toxicity to Te
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Proprietary F: Halogenated aryl est
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Proprietary F: Halogenated aryl est
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REPRODUCTIVE TOXICITY Conclusion: N
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• Neurotoxicity Screening Battery
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Basis for Conclusion: No pertinent
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Henry’s Law Constant: No data 9-1
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Anaerobic Biodegradation: No data P
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Proprietary G: Triaryl phosphate, i
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Acute Inhalation Toxicity (OPPTS Ha
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SUBCHRONIC TOXICITY Subchronic Oral
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• Prenatal Developmental Toxicity
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Composition of Proprietary G assaye
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Several components of the [Formulat
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As described in unvalidated robust
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Sediment/Water Biodegradation: No d
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Proprietary H: Halogenated aryl est
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Proprietary H: Halogenated aryl est
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REPRODUCTIVE TOXICITY Conclusion: N
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IMMUNOTOXICITY Conclusion: No avail
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Henry’s Law Constant: No data 11-
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Proprietary I: Organic phosphate es
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Proprietary I: Organic phosphate es
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CARCINOGENICITY Conclusion: No avai
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No studies were located that were r
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• Chronic Toxicity to Freshwater
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Explosivity: No data Corrosion Char
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Proprietary J: Aryl phosphate Exist
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Proprietary J: Aryl phosphate Synon
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Results: No deaths. Clinical signs
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As described in a robust summary, m
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third animal on days 2 and 3 only.
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however, identify target organs tha
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Basis for Conclusion: The only avai
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Basis for Conclusion: The available
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EPA proposed guidelines (Ref. 58).
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[Formulation 2] (typically 43% Prop
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No additional, pertinent acute toxi
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Proprietary J: Aryl phosphate CAS M
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Odor: No data Oxidation/Reduction C
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Bioconcentration Environmental Fate
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Degradation and Transport Photolysi
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Sediment Temp. T 1/2 Comments Refer
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Proprietary K: Aryl phosphate Exist
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Proprietary K: Aryl phosphate CAS M
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Proprietary L: Aryl phosphate Exist
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Proprietary L: Aryl phosphate Synon
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United States Environmental Protect
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