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EC number: - | 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:
- key study
- Study period:
- 10.08.2018 - 17.04.2019
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 207 (Earthworm, Acute Toxicity Tests)
- GLP compliance:
- yes
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
Sampling and analysis
- Analytical monitoring:
- no
Test substrate
- Vehicle:
- no
Test organisms
- Test organisms (species):
- Eisenia fetida
- Animal group:
- annelids
- Details on test organisms:
- Earthworm (Eiseniafoetida) was selected as a test species because it is recommended by MEP Guideline for Testing of Chemicals N o.207.
The test earthwonn (Eisenia ji:Jetida) was obtained from Chenggong Earthworm Raising Farm in Dongli District, Tianjin. The batch number was earthworm20170626.
The domestication conditions of earthworms were 20±2°C, 80±15% relative humidity and continuous light.The adult (at least two months old with clitellum) worms with an individual weight of 0.3000~0.5635 g were used in the test.
Study design
- Study type:
- laboratory study
- Substrate type:
- artificial soil
- Limit test:
- yes
- Total exposure duration:
- 14 d
Test conditions
- Test temperature:
- 19.3~20.6 °C
- Moisture:
- 66~89 % relative humidity
- Details on test conditions:
- During the test, monitored temperature was in the range of 19.3~20.6 °C, continuous light in condition of 66~89 % relative humidity monitored content, light intensity was in the range of 543- 679 Lux.
- Nominal and measured concentrations:
- I 000 mg/kg dry soil weight
Results and discussion
Effect concentrationsopen allclose all
- Key result
- Duration:
- 7 d
- Dose descriptor:
- LC50
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Key result
- 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
- Details on results:
- At the end of test, there was no difference in earthworm weight reduce rate between the test and control group. The moisture content was 30.0% and 30.0% for control and test medium at the beginning of the test and was in the range of28.8%-29.6% and 29.3-29.8% for control and test medium at the end of the test.
The pH value was 5.51 and 4.92 for control and test medium, respectively.
During the exposure period, there was no mortality or abnormal signs observed at control and 1000 mg/kg dry soil weight test group.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- No mortality of the test organisms was observed during the test. According to the results, the acute toxicity of Sa 190 was:
LC50(7 d): > 1000mg/kg dry soil weight
LC50(14 d): > 1000mg/kg dry soil weight - Executive summary:
No mortality of the test organisms was observed during the test. According to the results, the acute toxicity of Sa 190 was:
LC50(7 d): > 1000mg/kg dry soil weight
LC50(14 d): > 1000mg/kg dry soil weight
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