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Ecotoxicological information

Sediment toxicity

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Administrative data

Endpoint:
sediment toxicity: long-term
Type of information:
experimental study
Adequacy of study:
key study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EPA OPPTS 850.1735 (Whole Sediment Acute Toxicity of Invertebrates, freshwater)
Deviations:
no
Qualifier:
according to
Guideline:
other:
Deviations:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test organisms

Test organisms (species):
Hyalella azteca

Study design

Study type:
laboratory study
Test type:
flow-through
Water media type:
freshwater
Type of sediment:
artificial sediment
Limit test:
no
Exposure duration
Duration:
28 d
Exposure phase:
total exposure duration

Test conditions

Reference substance (positive control):
not specified

Results and discussion

Effect concentrationsopen allclose all
Duration:
28 d
Dose descriptor:
NOEC
Effect conc.:
125 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Duration:
28 d
Dose descriptor:
EC50
Effect conc.:
> 125 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Duration:
28 d
Dose descriptor:
EC50
Effect conc.:
> 125 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth rate
Duration:
28 d
Dose descriptor:
NOEC
Effect conc.:
125 mg/kg sediment dw
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth rate

Applicant's summary and conclusion

Validity criteria fulfilled:
yes