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Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Reference substance name:
Mixed LOF
IUPAC Name:
Mixed LOF

Sampling and analysis

Analytical monitoring:
yes
Details on sampling:
Samples were taken on Day 0, 1, 2, and 3 from the stirring vessels used to prepare the WAFs and from the 'old' WAFs of each treatment on Day 1 and at termination for analysis.

Test solutions

Vehicle:
no
Details on test solutions:
Test solution was renewed daily.

Test organisms

Test organisms (species):
Oncorhynchus mykiss (previous name: Salmo gairdneri)
Details on test organisms:
Fish were approximately 4 weeks old at initiation of exposure, and were quarantined and observed for parasites and disesase for at least 12 days before the test.

Study design

Test type:
semi-static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
96 h

Test conditions

Test temperature:
15 C

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
LL50
Effect conc.:
21 mg/L
Nominal / measured:
meas. (arithm. mean)
Conc. based on:
test mat.
Basis for effect:
mortality (fish)

Applicant's summary and conclusion

Conclusions:
In an exposure to WAFs of Mixed LOF to rainbow trout, the 96-hour LL50 was 21 mg/L.
Executive summary:

In an exposure to WAFs of Mixed LOF to rainbow trout, the 96-hour LL50 was 21 mg/L.

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