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Registration Dossier
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EC number: 246-805-2 | CAS number: 25306-75-6
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The ECOSAR QSAR model predicts that 30-day, NOEC cited as a ChV value would to be 17.983 mg/L (ppm) Green Algae.
The ECOSAR QSAR model predicts that 96-hr EC50 value would to be 48.819 mg/L (ppm) for Green Algae.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 48.819 mg/L
- EC50 for marine water algae:
- 4.88 mg/L
- EC10 or NOEC for freshwater algae:
- 17.983 mg/L
- EC10 or NOEC for marine water algae:
- 1.8 mg/L
Additional information
The ECOSAR QSAR model predicts that 30-day, NOEC cited as a ChV value would to be 17.983mg/L (ppm) Green Algae.
The ECOSAR QSAR model predicts that 96-hr EC50 value would to be 48.819mg/L (ppm) forGreen Algae.
The available data for saltwater algae and cyanobacteria are limited and to obtaine the value for PNECs for saltwaters is taken account a assesment factor 10 to extrapolate to LC50 following the “Guidance on Information Requirement and Chemical Safety Assessment R.10: Characterisation of dose [concentration]- response for environment”and “Table R.10-5 Assessment factors proposed for deriving PNEC water for saltwater for different data sets”, to account for the possibility that greater taxonomic diversity in the marine environment makes it likely that some marine taxa may be more sensitive than the most sensitive freshwater taxa
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