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
Study period:
12 November 1976
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
other: Method - 58
Version / remarks:
Comparable to internationally accepted guidelines.
Deviations:
not specified
GLP compliance:
no
Specific details on test material used for the study:
Name: FAT 20013/A
Purity: 58 %
Analytical monitoring:
no
Vehicle:
not specified
Test organisms (species):
activated sludge
Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
21 d
Reference substance (positive control):
no
Key result
Duration:
21 d
Dose descriptor:
other: BST
Effect conc.:
> 300 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Validity criteria fulfilled:
not specified
Conclusions:
The toxicity to activated sludge for FAT 20013/A was found to be greater than 300 mg/L.
Executive summary:

A study was performed with FAT 20013/A to determine the toxicity to microorganisms. This test was conducted according to CIBA internal guideline Method A-58. Based on the findings of the study, the toxicity to activated sludge for FAT 20013/A was found to be greater than 300 mg/L.

Description of key information

A study was performed with FAT 20013/A to determine the toxicity to microorganisms. This test was conducted according to CIBA internal guideline Method A-58. Based on the findings of the study, the toxicity to activated sludge for FAT 20013/A was found to be greater than 300 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
300 mg/L

Additional information

Categories Display