Registration Dossier
Registration Dossier
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EC number: 604-138-8 | CAS number: 139481-59-7
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Remarks:
- growth inhibition test
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Study period:
- December 2007.
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Remarks:
- OECD 201
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 201 (Alga, Growth Inhibition Test)
- GLP compliance:
- not specified
- Test organisms (species):
- Raphidocelis subcapitata (previous names: Pseudokirchneriella subcapitata, Selenastrum capricornutum)
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Remarks:
- yield
- Effect conc.:
- 56 mg/L
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Remarks:
- yield
- Effect conc.:
- 32 mg/L
- Duration:
- 72 h
- Dose descriptor:
- LOEC
- Remarks:
- yield
- Effect conc.:
- 56 mg/L
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Remarks:
- growth rate
- Effect conc.:
- 32 mg/L
- Duration:
- 72 h
- Dose descriptor:
- LOEC
- Remarks:
- growth rate
- Effect conc.:
- 56 mg/L
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Remarks:
- growth rate
- Effect conc.:
- > 56 mg/L
- Validity criteria fulfilled:
- not specified
- Conclusions:
- The substance has a NOEC (72h) equal to 32 mg/L, for both yield and growth rate.
Reference
Description of key information
Based on the OECD 201 (growth inhibition test) on Pseudokirchinella subcapitata, the substance has a NOEC (72h) equal to 32 mg/L, for both yield and growth rate.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 56 mg/L
- EC10 or NOEC for freshwater algae:
- 32 mg/L
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
