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EC number: 941-788-4 | CAS number: -
Toxicity to soil macroorganisms except arthropods
Administrative data
- Endpoint:
- toxicity to soil macroorganisms except arthropods: short-term
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 207 (Earthworm, Acute Toxicity Tests)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Calcination product of titanium dioxide, tin monoxide, zinc oxide and dihydrogen wolframate
- EC Number:
- 941-788-4
- Molecular formula:
- Ti 1 Sn 0,6 Zn 0,5 W 0,15 O 4
- IUPAC Name:
- Calcination product of titanium dioxide, tin monoxide, zinc oxide and dihydrogen wolframate
- Details on test material:
- - Physical state: solid, red
- Analytical purity: > 99 %
- Storage condition of test material: room temperature
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test substrate
- Vehicle:
- no
- Details on preparation and application of test substrate:
- - Method of mixing into soil (if used): The test substance is insoluble in water. Therefore the weighed portion was mixed with quartz sand and then formulated in artificial soil. Portions of about 750 g moistened substrate were given to the test pots.
Test organisms
- Test organisms (species):
- Eisenia fetida
- Animal group:
- annelids
- Details on test organisms:
- TEST ORGANISM
- Source: Jiang Su province Jurong Stock Farm
- Weight at test initiation (mean and range, SD): 300 - 600 mg
ACCLIMATION
- Acclimation period: 1 day before begin of exposure
- Acclimation conditions (same as test or not): same
Study design
- Study type:
- laboratory study
- Substrate type:
- artificial soil
- Limit test:
- yes
- Total exposure duration:
- 14 d
Test conditions
- Test temperature:
- 19.8 - 20.3 °C
- Moisture:
- 40 - 60 % WHC
- Details on test conditions:
- TEST SYSTEM
- Test container (material, size): 1 L glass vessels covered with a lid
- Amount of soil or substrate: 750 g wt
- No. of organisms per container (treatment): 10
- No. of replicates per treatment group: 4
- No. of replicates per control: 4
OTHER TEST CONDITIONS
- Photoperiod: continous light
- Light intensity: 660 LUX
EFFECT PARAMETERS MEASURED (with observation intervals if applicable) :
Mortality after 7 days and at the end of exposure
- Nominal and measured concentrations:
- Nominal test concentrations (mg/kg dry mass): 1000
- Reference substance (positive control):
- yes
- Remarks:
- 2-chloroacetamide
Results and discussion
Effect concentrations
- Duration:
- 14 d
- Dose descriptor:
- LC50
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Results with reference substance (positive control):
- LC50= 17.6 mg/kg dry matter
Applicant's summary and conclusion
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