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Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
06.11 - 10.11.1989
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report Date:
1989

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
Version / remarks:
adopted April 1984
Qualifier:
according to
Guideline:
EU Method C.1 (Acute Toxicity for Fish)
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Methoxyessigsäure
- Physical state: liquid, colourless
- Storage condition of test material: stored at 4 °C in the refrigerator, in closed container
- Density: ca. 1.18 g/mL

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Danio rerio (previous name: Brachydanio rerio)

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
96
Remarks on exposure duration:
h

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
> 500 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality

Any other information on results incl. tables

Analytical dose verification was 106.9 %. Water quality parameter like temperature, dissolved oxygen and pH were within acceptable limits. Sublethal effects like gills stuck in a gapping position or swimming behaviour was observed in the 500 g/mL group.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
Based on the results of this study the 96-hour LC50 of Brachydanio rerio was determined to be higher than 500 mg/L.
Executive summary:

In a 96-h acute toxicity study, Brachydanio rerio were exposed to Methoxyacetic acid at nominal concentrations of 0 (control) and 500 mg a.i./L under static conditions. The 96-h LC50 was higher 500 mg/L, the highest concentration tested. Sublethal effects like uncoordinated swimming were observed in the group exposed to Methoxyacetic acid.