Registration Dossier
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EC number: 619-567-6 | CAS number: 848301-66-6
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: although the test was non-GLP, the results are judged to be reliable based on the description of the test method
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 201 (Alga, Growth Inhibition Test)
- Deviations:
- no
- GLP compliance:
- no
Test material
- Reference substance name:
- C8-C16 branched and linear hydrocarbons (full range) – Kerosine
- Cas Number:
- 848301-66-6
- Molecular formula:
- main general molecular formula: CnH(2n+2)
- IUPAC Name:
- C8-C16 branched and linear hydrocarbons (full range) – Kerosine
- Details on test material:
- - Name of test material (as cited in study report): GtL Kerosine (GSMF/2)
- Lot/batch No.: 200409 (EFE reference number)
- Storage: the sample was tested by ignition, to determine, that no deterioration had occured during storage.
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- Raphidocelis subcapitata (previous names: Pseudokirchneriella subcapitata, Selenastrum capricornutum)
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 72 h
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EL50
- Effect conc.:
- > 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Remarks:
- and biomass
- Duration:
- 72 h
- Dose descriptor:
- NOELR
- Effect conc.:
- 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOELR
- Effect conc.:
- 10 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- biomass
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- 72 hour EL50 values were > 1000 mg/l for both growth parameters (A and μ) and NOEL values were judged to be 10 and 100 mg/l for A and μ, respectively.
Although a slight suppression in growth was noted at the top loading rates (as indicated by NOEL values), the substance 'Kerosine (Fischer-Tropsch), full range, C8-16 - branched and linear' would be categorised as not acutely toxic as EL50 values were greater than 1000 mg/l, the top loading rate
tested.
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