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:
1999
Report Date:
1999

Materials and methods

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

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test organisms

Test organisms (species):
activated sludge, domestic

Study design

Test type:
other: aerobic
Limit test:
no
Total exposure duration:
3 h

Test conditions

Test temperature:
21°C to 22°C
pH:
7.6 to 8.1
Dissolved oxygen:
7.8 to 8.6 mg O2/l /min
Nominal and measured concentrations:
nominal: 10, 32, 100, 320 and 1000 mg/l.
Reference substance (positive control):
yes

Results and discussion

Effect concentrationsopen allclose all
Duration:
3 h
Dose descriptor:
IC50
Effect conc.:
398 mg/L
Duration:
3 h
Dose descriptor:
NOEC
Effect conc.:
181 mg/L

Applicant's summary and conclusion