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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2007
Reliability:
1 (reliable without restriction)
Cross-referenceopen allclose all
Reason / purpose:
reference to same study
Reason / purpose:
reference to other study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report Date:
2007

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
Deviations:
no
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no
Details on test solutions:
Due to the low water solubility of the test item, a dispension of the test item with the loading rate of 100 mg/L was continuously stirred 3 hours. Then, the dispersion was filtered. The undiluted filtrate with the maximum concentration of dissolved test item was used as the test medium.

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
TEST ORGANISM
- Common name: Daphnia magna Straus
- Strain: Clone 5

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
48 h
Post exposure observation period:
no

Test conditions

Hardness:
2.5 mmol/L; 250 mg/L as CaCO3
Test temperature:
20 - 21°C
pH:
7.8 - 7.9
Dissolved oxygen:
8.7 - 8.3 mg/L
Nominal and measured concentrations:
nomonal: 100 mg/l
measured start concentration after filtration: 0.19 µg/l
Reference substance (positive control):
no

Results and discussion

Effect concentrationsopen allclose all
Duration:
48 h
Dose descriptor:
NOEC
Effect conc.:
>= 0.19 µg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC0
Effect conc.:
>= 0.19 µg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
>= 0.19 µg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC100
Effect conc.:
>= 0.19 µg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
mobility
Details on results:
behaviour abnormalities: no
mortality of control: no

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
No effects on Daphnia Magna until the limit of the water solubility of 0.19 µg/l