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

Data source

Reference
Reference Type:
other:
Title:
Unnamed
Year:
1999

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other:

Test material

Test organisms

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

Study design

Test type:
not specified
Water media type:
freshwater
Limit test:
no
Total exposure duration:
72 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
5.33 mg/L
Nominal / measured:
not specified
Conc. based on:
other:
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
62.57 mg/L
Nominal / measured:
not specified
Conc. based on:
other:
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
1.8 mg/L
Nominal / measured:
not specified
Conc. based on:
other:
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
< 1 mg/L
Nominal / measured:
not specified
Conc. based on:
other:
Basis for effect:
biomass

Applicant's summary and conclusion