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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

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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:
3 June 1993
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
Deviations:
no
GLP compliance:
no
Analytical monitoring:
not specified
Vehicle:
not specified
Test organisms (species):
activated sludge
Test type:
not specified
Water media type:
not specified
Limit test:
no
Total exposure duration:
3 h
Test temperature:
22.3 °C
pH:
7.5 to 7.8
Nominal and measured concentrations:
10, 32, 100 and 320 mg/L
Reference substance (positive control):
yes
Remarks:
3,5 - Dichlor-phenol
Key result
Duration:
3 h
Dose descriptor:
IC50
Effect conc.:
> 320 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Results with reference substance (positive control):
3,5-Dichlorphenol IC50 (3 h) = 7.5 mg/L
Validity criteria fulfilled:
not specified
Conclusions:
3 h IC50 of FAT 40444/A towards bacterial population was determined to be >320 mg/L.
Executive summary:

A study was conducted according to OECD guideline 209 to evaluate the toxicity potential of FAT 40444/A to bacterial population. In this study, nominal test concentrations of 10, 32, 100 and 320 mg/L were used. Based on the findings of the study, the IC50 was determined to be >320 mg/L.

Description of key information

A study was conducted according to OECD guideline 209 to evaluate the toxicity potential of FAT 40444/A to bacterial population. In this study, nominal test concentrations of 10, 32, 100 and 320 mg/L were used. Based on the findings of the study, the IC50was determined to be >320 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
320 mg/L

Additional information