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Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1980-03-01
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Original study report not yet available. Method and test conditions unknown

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1980
Report Date:
1980
Reference Type:
study report
Title:
Unnamed
Year:
1973
Report Date:
1973

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
ETAD Fermentation Tube Method
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
no data

Sampling and analysis

Analytical monitoring:
no

Test organisms

Test organisms (species):
activated sludge, domestic

Test conditions

Details on test conditions:
Type: aquatic

Results and discussion

Effect concentrations
Duration:
24 h
Dose descriptor:
NOEC
Effect conc.:
> 300 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
not specified

Any other information on results incl. tables

The endpoint is reported as "SG = Schädigungsgrenze". This is specified as being the concentration at which no toxic effects were observed [Zahn (1973); T02256; page 2, number 4)].

Compounds with NOAEC ranginging between 100 -500 mg/L were regarded to be of moderate toxicity to bacteria ( Zahn (1973); T02256; page 2).

Applicant's summary and conclusion