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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Link to relevant study record(s)

Reference
Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Justification for type of information:
See read across justification attached to section 13.
Reason / purpose for cross-reference:
read-across source
Reason / purpose for cross-reference:
read-across source
Reason / purpose for cross-reference:
read-across source
Reason / purpose for cross-reference:
read-across source
Reason / purpose for cross-reference:
read-across source
Reason / purpose for cross-reference:
read-across source
Reason / purpose for cross-reference:
read-across source
Reason / purpose for cross-reference:
read-across source
Reason / purpose for cross-reference:
read-across source
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
74 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
not specified
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
293 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
not specified
Conclusions:
72-h NOEC: 74 mg/L
72-h EC50: 293 mg/L
Executive summary:

Based on the toxicity of the constituents, the effect concentration was calculated for the registered substance by concentration addition. For details see read across justification. The 72 -h NOEC is 74 mg/L; the 72 -h EC50 is 293 mg/L.

The results are considered relevant and reliable for the risk assessment.

Description of key information

EC50: 293 mg/L

NOEC: 74 mg/L

Key value for chemical safety assessment

EC50 for freshwater algae:
293 mg/L
EC10 or NOEC for freshwater algae:
74 mg/L

Additional information