Registration Dossier
Registration Dossier
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EC number: 215-158-8 | CAS number: 1308-14-1
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants: long-term
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- Information from a peer reviewed Assessment Report. Chromium(III) hydroxide is insoluble between pH 6.8 and 11 (see section 4.8). Under conditions < pH 6.8 hydrolysis takes place and at > pH11.5 hydroxocomplexes are formed. The main toxic principle of these solutions < pH6.8 and > pH11.5 is dissolved Cr(III). Therefore Chromium(III) acetate is used as supporting substance.
Data source
Reference
- Reference Type:
- other: Peer reviewed assessment report
- Title:
- Unnamed
- Year:
- 1 997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Principles of method if other than guideline:
- data from peer-reviewed assessment report
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Chromium triacetate
- EC Number:
- 213-909-4
- EC Name:
- Chromium triacetate
- Cas Number:
- 1066-30-4
- IUPAC Name:
- chromium(3+) triacetate
Constituent 1
Study design
- Test type:
- not specified
- Study type:
- other: no data
- Total exposure duration:
- 5 mo
Test conditions
- pH:
- pH 5.6 marine loam
pH 5.4 marine loam
pH 5.2 loam
pH 5 sand
pH 5.3 sand - Nominal and measured concentrations:
- value was etsimated by the evaluators
Results and discussion
Effect concentrationsopen allclose all
- Species:
- other: Grain species
- Duration:
- 5 mo
- Dose descriptor:
- NOEC
- Effect conc.:
- 631 mg/kg soil dw
- Nominal / measured:
- estimated
- Conc. based on:
- other: mg chromium/kg dw. Concentration added.
- Basis for effect:
- growth
- Remarks on result:
- other: marine loam: pH 5.6, 1.6% organic matter, 7.8% clay
- Species:
- other: Grain species
- Duration:
- 5 mo
- Dose descriptor:
- NOEC
- Effect conc.:
- 200 mg/kg soil dw
- Nominal / measured:
- estimated
- Conc. based on:
- other: mg chromium/kg dw. Concentration added.
- Basis for effect:
- growth
- Remarks on result:
- other: marine loam: pH 5.4, 12.4% organic matter, 726% clay
- Species:
- other: Grain species
- Duration:
- 5 mo
- Dose descriptor:
- NOEC
- Effect conc.:
- 200 mg/kg soil dw
- Nominal / measured:
- estimated
- Conc. based on:
- other: mg chromium/kg dw. Concentration added.
- Basis for effect:
- growth
- Remarks on result:
- other: loam pH 5.2, 3.2% organic matter, 37.7% clay
- Species:
- other: Grain species
- Duration:
- 5 mo
- Dose descriptor:
- NOEC
- Effect conc.:
- 400 mg/kg soil dw
- Nominal / measured:
- estimated
- Conc. based on:
- other: mg chromium/kg dw. Concentration added.
- Basis for effect:
- growth
- Remarks on result:
- other: sand: pH 5, 3.4% organic matter, 2.6% clay
- Species:
- other: Grain species
- Duration:
- 5 mo
- Dose descriptor:
- NOEC
- Effect conc.:
- 200 mg/kg soil dw
- Nominal / measured:
- estimated
- Conc. based on:
- other: mg chromium/kg dw. Concentration added.
- Basis for effect:
- growth
- Remarks on result:
- other: sand: pH 5.4, 6.8% organic matter, 3.3% clay
- Details on results:
- Concentrations were estimated by the evaluators (RIVM 1997).
Concentration corresponds to the added concentration, therefore concentrations are regarded as nominal concentrations.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The 5 month NOEC for grain species was 200 - 631 mg Chromium(III)/kg dw soil depending on soil characteristics.
- Executive summary:
Grain Species were exposed to Chromium(III)acetate in 5 different soils for 5 months. The NOEC for growth was 631 mg Chromium(III)/kg dw soil (marine loam), 200 mg Chromium(III)/kg dw soil (marine loam), 200 mg Chromium(III)/kg dw soil (loam), 400 mg Chromium(III)/kg dw soil (sand), and 200 mg Chromium(III)/kg dw soil (sand), respectively. Concentrations were estimated nominal concentrations.
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