Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Adequacy of study:
other information

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: 92/69/EWG, C.3
GLP compliance:
yes

Test solutions

Details on test solutions:
Identity and concentration of auxiliary solvent for dispersal: Stammlösung (für niedrigste Konzentration: 5.60 mg/l) bzw.
Direkteinwaage (für höhere Testkonzentrationen)
Magnetrührer, Ultraschallbad

"ENGLISH"

stoch solution (for the lowest concentration: 5.60 mg/l)
resp. direct introduction of weighed-in amounts (for higher
test concentrations), magnetic stirrer, ultrasonic bath

Test organisms

Test organisms (species):
other: Scenedesmus subspicatus, Strain No. SAG 86

Study design

Limit test:
no
Total exposure duration:
72 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
56 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
56 mg/L
Basis for effect:
biomass
Details on results:
%Concentration loss over test: 3.7 ... 2.1

Applicant's summary and conclusion