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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Description of key information

NOEC (56 d) = 750 mg a.i./kg soil dw  for Eisenia fetida 

Key value for chemical safety assessment

Long-term EC10, LC10 or NOEC for soil macroorganisms:
750 mg/kg soil dw

Additional information

Since no studies on toxicity to soil organisms are available for AES (C10 -12, 1 -2.5EO) Na (CAS 68610-66-2) a read-across approach from a comparable AES (C12 -14, 2EO) Na (CAS 68891 -38-3) was applied.

In this test the earthworm Eisenia fetida was exposed to different test concentrations of the AES (C12 -14, 2EO) Na mixture (CAS 68891-38-3). The study was performed according to OECD guideline 222 and GLP. The NOEC (56 d) for body weight change and reproduction was determined as 750 mg a.i./kg soil dry weight. Up to the highest test concentration (750 mg a.i./kg soil dry weight) no mortality was observed (BASF, 2012).