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Ecotoxicological information

Sediment toxicity

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Administrative data

Endpoint:
sediment toxicity: short-term
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
publication
Title:
A comparative study of the toxicity and inhibitory effects of inorganic tin compounds on various biological subjects
Author:
Farasova, Agata
Year:
1994
Bibliographic source:
Biologia (Bratislava) 49(3): 307-311

Materials and methods

Test guideline
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 235 (Chironomus sp., Acute Immobilisation Test)
Deviations:
no
Remarks:
Test duration extended to 96 hours, use of Tubifex tubifex
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Details on test material:
SnCl2*2H2O p.a. from Lachema, Brno, Czech Republic
Specific details on test material used for the study:
SnCl2*2H2O p.a. from Lachema, Brno, Czech Republic

Sampling and analysis

Analytical monitoring:
not specified

Test substrate

Vehicle:
no

Test organisms

Test organisms (species):
Tubifex tubifex

Study design

Study type:
laboratory study
Test type:
static
Water media type:
freshwater
Type of sediment:
not specified
Remarks:
none
Limit test:
no

Test conditions

Test temperature:
20°C
Details on test conditions:
TEST SYSTEM
- Test container (material, size): dish
- Sediment volume: none
- Overlying water volume: 20 mL
- Aeration: no

EXPOSURE REGIME
- Feeding regime: no feeding


OTHER TEST CONDITIONS
- Light quality: without direct sunlight

VEHICLE CONTROL PERFORMED: no

Results and discussion

Effect concentrationsopen allclose all
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
54.9 mg/L
Nominal / measured:
nominal
Conc. based on:
element
Remarks:
tin(II) moiety
Basis for effect:
mortality
Key result
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
30 mg/L
Nominal / measured:
nominal
Conc. based on:
element
Remarks:
tin(II) moiety
Basis for effect:
mortality
Details on results:
LC50: 30.0 mg Sn/L (95% C.I.: 24.0-32.8 mg Sn /L)
Reported statistics and error estimates:
probit analysis

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
Tubifex tubifex 96h-LC50: 30.0 mg/L
Executive summary:

In an acute study, the acute toxicity of tin dichloride on Tubifex tubifex has been determined by Fargasova (1994). The test was performed similar to OECD 235. The result was based on dissolved tin ions. The 96-hour LC50 based on tin(II) is 30.0 mg/L.