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)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996

Materials and methods

Principles of method if other than guideline:
Assessment of Ready Biodegradability using the Closed Bottle Test (OECD 301D) - results of toxicity control group
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test organisms

Test organisms (species):
activated sludge, domestic

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
28 d

Results and discussion

Effect concentrations
Duration:
28 d
Dose descriptor:
NOEC
Effect conc.:
2 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
inhibition of total respiration
Remarks:
respiration rate

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
The NOEC for sludge inhibition over a 28-day period was 2 mg/l.
Executive summary:

Ancamine K54 at a dose concentration of 2 mg/l was not toxic to the inoculum over the course of a 28 day (OECD 301D) biodegradation test.