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Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From March 07,2010 to March 09,2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP compliant study conducted to recognized international test guidelines; some lacking in some observation and method description.
Qualifier:
according to guideline
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
Deviations:
no
GLP compliance:
yes
Specific details on test material used for the study:
Fatty acids, C6-24 and C6-24-unsatd., Me esters, distn. residues- Physical state: black , brown semisolid- Analytical purity:100% - Storage condition of test material: room temperature- Solubility: < 10% in water, soluble in acetone, hexane and dichloromethane
Analytical monitoring:
no
Vehicle:
no
Details on test solutions:
PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method:
Direct weight of the test substance into the test vessels, filled up to final volumes of 10 L with copper- and chlorine-free drinking water, then stirring 5 minutes by ultraturrax.
Test organisms (species):
Leuciscus idus
Details on test organisms:
TEST ORGANISM
- Common name:Leuciscus idus
- Length at study initiation : 6 cm long
- Feeding during test : no
- number of test organism : 10 per concentration
- Light : about 16 hours illumination per day
- Test vessels 1 fish basins containing 10 L test water
Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
48 h
Post exposure observation period:
The fish did not show any abnormal behaviour.
Hardness:
about 16 °dH (about 93 mg Ca and 12 nig Mg per litre)
Test temperature:
19.5 - 20.5 °C
pH:
7.9-8.3
Dissolved oxygen:
42-100 %
Salinity:
no data
Reference substance (positive control):
not specified
Duration:
48 h
Dose descriptor:
LC0
Effect conc.:
ca. 10 000 other: mg product / L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Key result
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
> 10 000 other: mg product / L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
48 h
Dose descriptor:
LC100
Effect conc.:
> 10 000 other: mg product / L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Validity criteria fulfilled:
yes
Conclusions:
Fatty acids, C6-24 and C6-24-unsatd., Me esters, distn. Residues turned out to be not toxic to Golden orfes.
Executive summary:

The acute toxicity of Fatty acids, C6 -C24 and C6-24-unsatd., Me esters, distn. Residues to Golden orfes was determined according to the German standard method for the examination of water, waste water and sludge; bioassays (group L); determination of the effect of substances in water on fish - fish-test (L 15). This method corresponds to the OECD-Guideline 203. The product was tested in a concentration range of 1 to 10000 mg product/ 1 (nominal). The incubation period was 48 hours under static conditions (the test-solutions were not renewed).

Description of key information

LC50 > 10000 mg/L

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
10 000 mg/L

Additional information

Fatty acids, C6-24 and C6-24-unsatd., Me esters, distn. Residues turned out to be not toxic to fish