Registration Dossier

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
Version / remarks:
92/69/EWG, C.2; OECD 202 (2004) See comments.
Deviations:
yes
Remarks:
temperature in the positive control and in the main study was higherthan stated in the guidline. This deviation was stated as uncritical by the testing laboratory, because not immobility occured.
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no
Details on test solutions:
Identity and concentration of auxiliary solvent for dispersal: No auxiliary solvent was used for dispersal.

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
48 h

Test conditions

Hardness:
250 mg CaCO3/L
Reference substance (positive control):
yes
Remarks:
Potassium dichromate

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Duration:
48 h
Dose descriptor:
EC100
Effect conc.:
> 100 mg/L
Duration:
48 h
Dose descriptor:
NOEC
Effect conc.:
>= 100 mg/L
Details on results:
%Concentration loss over test: 11 ... 13

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
Under the conditions of teh test, thes substance showed to short-term toxic effects against Daphnia magna in concentrations of 100 mg/L.