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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

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1991
Report date:
1991
Reference Type:
study report
Title:
Unnamed
Year:
1991
Report date:
1991

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
Deviations:
no

Test material

Constituent 1

Test organisms

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

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
5 d

Test conditions

Reference substance (positive control):
no

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
4 307 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
cell number
Remarks on result:
other:
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
1 746 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
other:
Remarks on result:
other:

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable