Registration Dossier

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1988
Report Date:
1988

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
DIN 38412-8 (Pseudomonas Zellvermehrungshemmtest)
Principles of method if other than guideline:
DIN 38412-8 (1991), a protocol later developed into ISO 10712:1995 Water quality - Pseudomonas putida growth inhibition test (Pseudomonas cell multiplication inhibition test)
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent

Sampling and analysis

Analytical monitoring:
no

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Test type:
static
Water media type:
freshwater

Results and discussion

Effect concentrations
Duration:
14 h
Dose descriptor:
other: TGK
Effect conc.:
124 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Details on results:
TGK equals "toxicological threshold concentration" and is defined as the concentration, at which the turbidity of the test solution caused by the bacteria is is decreased by 10% in comparison to the control.

Applicant's summary and conclusion