Registration Dossier
Registration Dossier
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EC number: 214-230-6 | CAS number: 1115-70-4
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to aquatic plants other than algae
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1992
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Qualifier:
- according to guideline
- Guideline:
- other: ISO/WD 20079
- Deviations:
- yes
- Remarks:
- two species of phosphate were added
- GLP compliance:
- not specified
- Analytical monitoring:
- no
- Vehicle:
- no
- Test organisms (species):
- Lemna minor
- Test type:
- static
- Limit test:
- no
- Total exposure duration:
- 168 h
- Hardness:
- no data
- Test temperature:
- 25 +-2°C
- pH:
- no data
- Dissolved oxygen:
- no data
- Salinity:
- no data
- Conductivity:
- no data
- Nominal and measured concentrations:
- Generally, test substance applied in at least five concentrations (1, 3.2 10, 32, 100 mg/L). Depending on the results, some tests were repeated including lower (0.1 and 0.32 mg/L) or higher (320 mg/L) concentrations.
- Details on test conditions:
- see publication for details
- Reference substance (positive control):
- no
- Key result
- Duration:
- 7 d
- Dose descriptor:
- EC50
- Effect conc.:
- 110 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Conclusions:
- The EC50 (7 days) for the Growth Rate is 110 mg/L.
Reference
Description of key information
Lemna tests with the duckweed L. minor were performed according to the standard ISO/WD 20079 (ISO, 2001)
The EC50 (7 days) for the Growth Rate is 110 mg/L.Key value for chemical safety assessment
- EC50 for freshwater plants:
- 110 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.
