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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1993

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EPA OPP 72-2 (Aquatic Invertebrate Acute Toxicity Test)
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
99.9% pure

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
flow-through
Water media type:
freshwater
Limit test:
no
Total exposure duration:
48 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
48 h
Dose descriptor:
NOEC
Effect conc.:
3 100 mg/L
Nominal / measured:
meas. (not specified)
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
4 100 mg/L
Nominal / measured:
meas. (not specified)
Basis for effect:
mobility

Any other information on results incl. tables

RESULTS: EXPOSED

- Nominal/measured concentrations:

- Nominal/ measured concentrations in mg A.I./ L

Nominal: 780 Mean Measured (SD):630 (57)

Nominal: 1300 Mean Measured (SD):1100 (81)

Nominal: 2200 Mean Measured (SD):1800 (190)

Nominal: 3600 Mean Measured (SD):3100 (280)

Nominal: 6000 Mean Measured (SD):5400 (400)

- Concentration / response curve:

Mean percentage mortality (of vessel A and B) after 96 hours:

Control: 5 %

630 mg A.I./L: 0 %

1100 mg A.I./L: 0 %

1800 mg A.I./L: 5 %

3100 mg A.I./L: 0 %

5400 mg A.I./L: 100 %

- Effect concentration vs. test substance solubility: Not reported

- Other effects: Not reported

RESULTS CONTROL: No effects

RESULTS: TEST WITH REFERENCE SUBSTANCE

Not reported

Applicant's summary and conclusion