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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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toxicity to aquatic algae and cyanobacteria
Type of information:
Adequacy of study:
supporting study
2 (reliable with restrictions)
Justification for type of information:
QSAR prediction
other: REACH Guidance on (Q)SAR
Principles of method if other than guideline:
Test organisms (species):
other: Green algae
Test type:
other: (Q)SAR
Water media type:
96 h
Dose descriptor:
Effect conc.:
481 000 mg/L
Dose descriptor:
other: Chronic Value (ChV)
Effect conc.:
246 000 mg/L
Basis for effect:
growth rate
Validity criteria fulfilled:
Phenols: Maximum LogKow: 7.0 (Green Algae EC50) - 8.0 (Chronic Value)
Estimated EC50 : 481.000 mg/L
Estimated Chronic Value : 246.000 mg/L
Intermediate substance is not estimated to be toxic to aquatic algae.

Description of key information

Short-term toxicity:

ECOSAR 1.11: Green Algae: EC50 (96h): 481.000 mg/L


Long-term toxicity:

Indicated results for chronic toxicity are "Chronic values" as obtained from ECOSAR 1.11

ECOSAR 1.11: Green Algae: ChV: 246.000 mg/L

Key value for chemical safety assessment

EC50 for freshwater algae:
481 000 mg/L
EC10 or NOEC for freshwater algae:
246 000 mg/L

Additional information

Intermediate substance is not estimated to be toxic to aquatic algae.