Registration Dossier
Registration Dossier
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EC number: 432-170-0 | CAS number: -
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:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study according EC Method C.3 and OECD guideline 201
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 201 (Alga, Growth Inhibition Test)
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.3 (Algal Inhibition test)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- LPT Laboratory of pharmacology and toxicology GmbH & Co. KG
Test material
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Orange solid powder
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test organisms
- Test organisms (species):
- Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
Study design
- Test type:
- static
- Water media type:
- freshwater
- Total exposure duration:
- 72 h
Test conditions
- Reference substance (positive control):
- yes
- Remarks:
- Potassium Dichromate
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- > 100 mg/L
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Results with reference substance (positive control):
- EC50 = 0.30 mg/L with Potassium Dichromate
Applicant's summary and conclusion
- Conclusions:
- The no effect concentration is above 100 mg/L and the EC-50 value could not be calculated as no algal growth inhibition was observed at 100 mg/L
- Executive summary:
The no effect concentration is above 100 mg/L and the EC-50 value could not be calculated as no algal growth inhibition was observed at 100 mg/L (and thus is above 100 mg/L)
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