Registration Dossier

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
activated sludge respiration inhibition testing
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test (Carbon and Ammonium Oxidation))
GLP compliance:
yes
Analytical monitoring:
not specified
Vehicle:
not specified
Test organisms (species):
sewage, domestic
Test type:
static
Water media type:
freshwater
Reference substance (positive control):
not specified
Duration:
3 h
Dose descriptor:
IC50
Effect conc.:
> 4 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
not specified
Duration:
3 h
Dose descriptor:
NOEC
Effect conc.:
4 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
not specified
Validity criteria fulfilled:
yes
Conclusions:
The IC50 of microorganisms is 4 mg/L.

Description of key information

The IC50 of microorganisms is 4 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
4 mg/L
EC10 or NOEC for microorganisms:
4 mg/L

Additional information

Categories Display