Environmental Profiles of Chemical Flame-Retardant Alternatives for

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Alkaline phosphatase elevated in females at 0.42% at 1 month but not later. Dose-related organ weight elevations compared to controls observed at 3 months in males included relative liver weight (+32-51%) at $0.13% and relative kidney weight (+39%) at 0.42%. Significant elevations in organ weights in females at 3 months included relative liver weight (+16-51%) at $0.04%, absolute (+30%) and relative (+34-40%) kidney weights at $0.13%, and absolute liver weight (+40%) at 0.42%. The statistical significance of these organ weight elevations was p
Basis for Conclusion: No repeated-exposure inhalation toxicity studies were located. • 90-Day Inhalation Toxicity (OPPTS Harmonized Guideline 870.3465; OECD Guideline 413) No studies of this type were located. REPRODUCTIVE TOXICITY Conclusion: The available reproductive toxicity data were judged inadequate to meet the endpoint. Basis for Conclusion: A fertility assay in male rabbits exposed by oral gavage for 12 weeks prior to mating (Ref. 62) partially characterizes this endpoint, but is not sufficient to satisfy the reproductive toxicity endpoint since it was described only in an abstract and females were not tested. Other studies (Ref. 26, 59) described below under Developmental Toxicity reported that in pregnant female rats exposed orally to Proprietary A, adverse reproductive effects occurred only at maternally lethal doses. However, no study evaluated reproductive function in females treated prior to mating. The 2-year feeding bioassay in rats by Ref. 24 (Ref. 9, 9a), discussed below under Chronic Toxicity, provides reproductive histopathology data that are, however, insufficient to satisfy the reproductive toxicity endpoint. This study provided histopathology results for the testis, epididymis, seminal vesicle, ovary, and uterus for the control and high-dose groups (0 and 80 mg/kg/day) after 1 year (10 scheduled sacrifices/sex/group) and for survivors in all groups after 2 years; unscheduled sacrifices (rats killed in a moribund state) were also examined. The 2-year exposure is too long to represent reproductive toxicity, because of the confounding effects of aging; the results pointed to dose-related effects in male reproductive organs (at $5 mg/kg/day, atrophy and decreased secretory product of the seminal vesicles; at $20 mg/kg/day, testicular germinal atrophy with oligospermia, and at 80 mg/kg/day, atrophy and decreased secretory product of the seminal vesicles and oligospermia and luminal accumulation of degenerated seminal products in the epididymis). No significant effect was observed in females. The tested doses, which were considerably lower than the guideline limit dose of 1,000 mg/kg/day, were not high enough to induce significant reproductive histopathology after one year of exposure; 1/10 high-dose males had oligospermia. Thus, a LOAEL for reproductive effects following subchronic (90-day) exposure is not available and cannot be extrapolated from the existing data, but the chronic data indicate a LOAEL of 5 mg/kg/day for atrophy and decreased secretory product of the seminal vesicles. 4-12
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Volume 2 Chemical Hazard Reviews Fu
Page 3 and 4:
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
Page 111 and 112: high enough to induce significant r
Page 113 and 114: Doses: 0, 25, 100, and 400 mg/kg/da
Page 115 and 116: mid-dose of 20 mg/kg/day as a LOAEL
Page 117 and 118: Critical Studies Type: Acute oral d
Page 119 and 120: English summary and therefore could
Page 121 and 122: Basis for Conclusion: TDCPP has bee
Page 123 and 124: Gene Mutation in Vivo: C Sex-linked
Page 125 and 126: 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: Conclusion: The available subchroni
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 and 178: Chromosomal Aberration in Vivo: C M
Page 179 and 180: Aquatic Organism Toxicity Ecotoxici
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
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These studies may be indicated, for
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• Mammalian Bone Marrow Chromosom
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• Algal Toxicity (OPPTS Harmonize
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Bioconcentration Fish: No data Daph
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Flame Retardant Alternatives Propri
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Proprietary C: Chloroalkyl phosphat
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Basis for Conclusion: Acute oral to
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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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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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