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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)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
Version / remarks:
1992
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
Sunflower oil, ester with sorbitol
EC Number:
306-248-9
EC Name:
Sunflower oil, ester with sorbitol
Cas Number:
96690-53-8
IUPAC Name:
Sunflower oil, ester with sorbitol

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no
Details on test solutions:
Test concentration: 100 mg/L

Stock solution: Directly weighing

Dispersion treatment: The test medium was mixed with an ultraturrax (1 min, 17000 rpm).

Test organisms

Test organisms (species):
Danio rerio (previous name: Brachydanio rerio)
Details on test organisms:
TEST SYSTEM: Dania rerio (zebrafish), Gnathostoma, Pisces, Osteichthyes, Teleostei, Clupeiformes, Cyprinidae

Reason for the selection of the test system: According to the guideline Danio rerio is suitable for this kind of study.

Origin: AQUARIUM AM AEGI, Volgersweg 6, D-30175 Hannover; All fish used in the test originated from the same delivery of the supplier.

Holding: Holding was performed at the test facility at 23 ± 2 °C and diffuse light (0.1-1 µmol photons · m-2 · s-1 , natural photoperiod). The water was changed at least once per week. The dissolved oxygen concentration was more than 80 % of the air saturation value. Zebrafish with at least 12 days of acclimatisation and mortality < 5 % within these days before the study starts were used in the test. No disease treatments were administered throughout holding and testing.

Water: Tap water of local origin was used for holding and testing. The water was filtered on activated charcoal and aerated for at least 24 h to remove chlorine. Nominal water parameters:
Total hardness: 10- 250 mg CaCO3/L
pH-value: 6.0 - 8.5
The water is analysed biannual ace. to German tap water regulation.

Feeding: Food was provided 3 times per week. The amount of food was 4% of the fish body weight per feeding day. The test fish were not fed 24 h before the test started.

Food: Star perlets; SERA GMBH, D-52518 Heinsberg

Average body length at the test start: 2.71 cm
Average body weight at the test start: 0.19 g

Study design

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

Test conditions

Hardness:
46 mg/l CaCO3
Test temperature:
23-24°C
pH:
7.51-7.73
Dissolved oxygen:
94-100% oxygen suration
Nominal and measured concentrations:
nominal: 100 mg/l
Details on test conditions:
Test duration: 96 h

Test vessel: Glass-aquaria loosely covered by glass tops were used.

Test volume: 10 L per vessel.

Aeration: Gentle aeration was provided.

Dilution water: Same as for holding.

Number of test fish: 7 zebrafish were used per limit concentration and control.

Loading, length of fish: Fish density in the tanks was less than 1 g fish per liter test solution.

Replicates: One replicate for limit concentration and control.

Introduction of fish: Fish were introduced randomly to individual replicates.

Feeding of test fish: The fish were not fed during the test.

Water temperature: 23 ± 2 °C

Dissolved oxygen concentration: Not less than 60 % of air saturation value.

Light intensity: 0.1 - 10 µmol photons · m-2 · s-1

Photoperiod: A natural photoperiod occurred during the test.
Reference substance (positive control):
no

Results and discussion

Effect concentrationsopen allclose all
Key result
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
96 h
Dose descriptor:
NOEC
Effect conc.:
100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Details on results:
The nominal test item concentration of 100 mg/L caused no mortality or non-lethal effects.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The nominal test item concentration of 100 mg/L caused no mortality or non-lethal effects.
Executive summary:

The acute toxicity of the test item to fish (zebrafish) was determined according to OECD-Guideline for Testing of Chemicals No. 203 (1992) from 2008- 05-26 to 2008-05-30 at DR.U.NOACK-LABORATORIEN, 31157 Sarstedt, Germany. A static limit test was conducted with a single test item concentration of 100 mg/L. Duration of the test was 96 h. 7 test organisms were exposed to the test concentration and control. Water quality parameters pH-value, temperature and oxygen-saturation measured after 0, 24, 48, 72 and 96 h were determined to be within the acceptable limits. DOC analysis at the beginning of the test was carried out.

The nominal test item concentration of 100 mg/L caused no mortality or non-lethal effects.