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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Reference
Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data migrated from NONS with permission to refer granted by ECHA.
Qualifier:
according to
Guideline:
other: 92/69/EEC, C3
GLP compliance:
yes
Analytical monitoring:
yes
Vehicle:
no
Test organisms (species):
Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)
Test type:
not specified
Water media type:
not specified
Limit test:
yes
Total exposure duration:
72 h
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 69.98 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 69.98 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
69.98 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
69.98 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
biomass
Validity criteria fulfilled:
not specified
Conclusions:
Based on information provided by ECHA, the 72 hour ErC50 value is > 69.98 mg/L with a NOEC of 69.98 also provided.

Description of key information

Based on information provided by ECHA, the 72 hour ErC50 value is > 69.98 mg/L with a NOEC of 69.98 also provided. As the EC50 value is greater than the maximum concentration tested, no key value for chemical safety assessment is appropriate. No testing on marine species has been conducted.

Key value for chemical safety assessment

EC10 or NOEC for freshwater algae:
69.98 mg/L

Additional information