Registration Dossier
Registration Dossier
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EC number: 271-808-0 | CAS number: 68608-89-9 This substance is identified by SDA Substance Name: C11-C13 branched alkyl benzene sulfonic acid sodium salt and SDA Reporting Number: 25-097-04.
Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
Description of key information
In the short-term study, the 14 -day LC50 was > 1000 mg/kg dw, and the NOEC was 250 mg/kg dw. In the long-term key study, the 21-day EC10 toE. albiduswas 6.2 mg/kg dry weight.
Key value for chemical safety assessment
- Short-term EC50 or LC50 for soil macroorganisms:
- 1 000 mg/kg soil dw
- Long-term EC10, LC10 or NOEC for soil macroorganisms:
- 6.2 mg/kg soil dw
Additional information
In the short-term study, groups of earthworms were exposed to LAS concentrations of 0, 63, 125, 250, 500, and 1000 mg/kg dw for 14 days. The test animals were examined for mortality, behaviour, health, and reproduction on days 7 and 14. 5% mortality was seen at the highest concentration. Effects to health were seen at the 500 and 1000 mg/kg dw concentrations. The 14 -day LC50 was > 1000 mg/kg dw, and the NOEC was 250 mg/kg dw.
In the long-term key study, adult E. albidus (10) were placed in soil containing the test substance for 21 days. The adults were removed, and the cocoons incubated in the soil for another 21 days. The juveniles were then counted. The 21-day EC10 toE. albiduswas 6.2 mg/kg dry weight.
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