Registration Dossier

Administrative data

Endpoint:
activated sludge respiration inhibition testing
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP. Guideline study

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
2004
Report Date:
2004

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test organisms

Test organisms (species):
other: activated sewage sludge

Study design

Test type:
static
Total exposure duration:
3 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
3 h
Dose descriptor:
EC50
Effect conc.:
> 1 000 mg/L
Duration:
3 h
Dose descriptor:
NOEC
Effect conc.:
>= 1 000 mg/L

Applicant's summary and conclusion

Conclusions:
Under the experimental conditions, the 3-hour EC50 of the test item Veralactame is > 1000 mg/l for activated sludge.
The test item should be considered as non-toxic for the micro-organisms of a water treatment plant.