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EC number: 224-292-6 | CAS number: 4292-10-8
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Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
Description of key information
Two acute toxicity studies towards the earthworm Eisenia fetida are available.
Key value for chemical safety assessment
- Short-term EC50 or LC50 for soil macroorganisms:
- 846 mg/kg soil dw
Additional information
Toxicity to soil macroorganisms
The acute toxicity of C8-18 AAPB towards the earthworm Eisenia fetida was investigated in a study conducted according to OECD Guideline 207 (Earthworm, Acute Toxicity Tests) and EU Method C.8 (Toxicity for Earthworms: Artificial Soil Test). At total 40 animals per concentration step were exposed to nominal concentrations of 0 (control), 63, 125, 250, 500, and 1000 mg product/kg dry soil for 14 d. No mortality and no effects on body weight were observed even in the highest concentration tested (14 d LC0≥ 1000 mg product/kg dry soil; 14 d LC0≥ 380 mg a. i /kg dry soil assuming an active matter content of 38 %). Moreover, no abnormal behaviour of the test organisms or other symptoms of toxicity were recorded in worms at any of the test treatments.
A second study, conducted as limit test, the acute toxicity of Coco AAPB towards Eisenia fetida was investigated according to EU Method C.8 (Toxicity for Earthworms: Artificial Soil Test). 40 Animals were exposed to 1000 mg/kg dry residue of test material (sole concentration tested) over a 14-d period. The 14 d LC0was determined to be ≥ 1000 mg dry residue/kg soil dry weight (corresponding to ≥ 846 mg active matter/kg soil dry weight and ≥ 2857 mg product/kg soil dry weight.
As there were no effects observed in both studies, it is justified to use the LC0of 846 mg/kg soil dw for chemical safety assessment. The obtained results were considered to be valid for the AAPBs.
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