Registration Dossier

Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
not reported.
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Method stated simply as "microtox", no data on GLP. Duration of exposure not listed in study report.

Data source

Reference
Reference Type:
publication
Title:
Investigations on the Aquatic Toxicity of Organotin Compounds
Author:
Steinhäuser K.G., et al.
Year:
1985
Bibliographic source:
Vom Wasser 65: 203-214 (1985)

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other:
Deviations:
not specified
Principles of method if other than guideline:
Determination of the inhibition of bioluminescence of Photobacterium phosphoreum with a Beckman Microtox Photometer after 30 minutes contact time.

Krebs, F.: "Toxicity Test with Freeze-dried Luminescent Bacteria", Gewasserschutz, Wasser, Abw. 63, 173-230 (1983).
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent

Sampling and analysis

Analytical monitoring:
yes

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Test type:
not specified
Water media type:
freshwater

Results and discussion

Effect concentrations
Dose descriptor:
EC50
Effect conc.:
1.5 µg/L
Nominal / measured:
not specified
Conc. based on:
test mat.

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
The EC50 of dioctyltin dichloride to micro-organisms 1.5 µg/L