Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1991

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: 92/69/EEC: C3
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test solutions

Details on test solutions:
Identity and concentration of auxiliary solvent for dispersal: Supersaturated solutions stirred for four days and then
filtered. No solvents used.

Test organisms

Test organisms (species):
Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)

Study design

Total exposure duration:
72 h

Test conditions

Hardness:
24 mg CaC03/L

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 0.5 mg/L
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
0.5 mg/L
Details on results:
%Concentration loss over test: 75 ...

Applicant's summary and conclusion