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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Information from migrated NONS file, as per inquiry number 06-2120053135-66-0000, permission to refer granted by ECHA
Qualifier:
according to guideline
Guideline:
other: EEC directive 87/302/ EEC p89
GLP compliance:
yes
Details on test solutions:
Identity and concentration of auxiliary solvent for dispersal: 1% tween in acetone was used at <0.1 g/l
Test organisms (species):
Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
Total exposure duration:
72 h
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
1.45 mg/L
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
0.125 mg/L
Basis for effect:
growth rate
Conclusions:
The substance showed some toxicity on algae in concentrations higher than 0.125 mg/L. EC50 after 72 hours was estimated to be 1,45 mg/L.

Description of key information

Key value for chemical safety assessment

EC50 for freshwater algae:
1.45 mg/L
EC10 or NOEC for freshwater algae:
0.125 mg/L

Additional information