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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Remarks:
Internationally accepted method, ECOSAR, EPA (USA)
Justification for type of information:
See attached (Q)SAR prediction reporting format (QPRF).
Principles of method if other than guideline:
QSAR calculation by ECOSAR v1.1, EPA, USA (attached QSAR Prediction Reporting Format, QPRF).
GLP compliance:
no
Key result
Duration:
96 h
Dose descriptor:
EC50
Effect conc.:
168.276 mg/L
Nominal / measured:
estimated
Conc. based on:
test mat.
Basis for effect:
not specified
Validity criteria fulfilled:
not applicable
Conclusions:
The estimated 96-h EC50 for Green Algae is 168.276 mg/l (ECOSAR v1.1, neutral organics).
Executive summary:

The estimated 96 -h EC50 for Green Algae is 168.276 mg/l (ECOSAR v1.1, neutral organics).

Description of key information

Key study: Internationally accepted method, ECOSAR, EPA (USA). The estimated 96-h EC50 for algae and cyanobacteria is 168.276 mg/l

Key value for chemical safety assessment

EC50 for freshwater algae:
168.276 mg/L
EC50 for marine water algae:
168.276 mg/L

Additional information

Key study: The estimated 96 -h EC50 for algae and cyanobacteria is 168.276 mg/l (ECOSAR v1.1, EPA, USA).