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Diss Factsheets

Administrative data

Endpoint:
toxicity to microorganisms
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
Guideline:
other: OECD Guideline No. 209.
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test organisms

Test organisms (species):
activated sludge of a predominantly domestic sewage

Study design

Test type:
static
Total exposure duration:
3 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
3 h
Dose descriptor:
IC50
Effect conc.:
> 100 mg/L
Duration:
3 h
Dose descriptor:
NOEC
Effect conc.:
100 mg/L

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
Under the experimental conditions, the 3-hour EC50 of Pseudo Kharismal is > 100 mg/l for activated sludge. Pseudo Kharismal should be considered as non-toxic for the micro-organisms in a water treatment plant.
Executive summary:

Under the experimental conditions, the 3-hour EC50 of Pseudo Kharismal is > 100 mg/l for activated sludge. Pseudo Kharismal should be considered as non-toxic for the micro-organisms in a water treatment plant.

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