Registration Dossier
Registration Dossier
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EC number: 429-590-1 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- effects on growth of green algae
- Type of information:
- experimental study
- Adequacy of study:
- key study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 998
- Report date:
- 1998
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- ISO 8692 (Water Quality - Fresh Water Algal Growth Inhibition Test with Scenedesmus subspicatus and Selenastrum capricornutum)
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.3 (Algal Inhibition test)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 201 (Alga, Growth Inhibition Test)
Test material
- Test material form:
- other:
Constituent 1
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
Test conditions
- Reference substance (positive control):
- yes
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 0.008 mg/L
- Nominal / measured:
- meas. (TWA)
- Conc. based on:
- test mat.
- Basis for effect:
- other:
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 0.022 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other:
- Key result
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 0.002 mg/L
- Nominal / measured:
- meas. (TWA)
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Key result
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 0.005 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.074 mg/L
- 95% CI:
- 0.05 - 0.1
- Nominal / measured:
- meas. (TWA)
- Conc. based on:
- test mat.
- Basis for effect:
- other:
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.21 mg/L
- 95% CI:
- 0.14 - 0.31
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other:
- Duration:
- 72 h
- Dose descriptor:
- EC10
- Effect conc.:
- 0.007 mg/L
- 95% CI:
- 0.004 - 0.011
- Nominal / measured:
- meas. (TWA)
- Conc. based on:
- test mat.
- Basis for effect:
- other:
- Duration:
- 72 h
- Dose descriptor:
- EC10
- Effect conc.:
- 0.02 mg/L
- 95% CI:
- 0.01 - 0.03
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other:
- Key result
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.02 mg/L
- 95% CI:
- 0.012 - 0.032
- Nominal / measured:
- meas. (TWA)
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Key result
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.058 mg/L
- 95% CI:
- 0.033 - 0.092
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
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