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Ecotoxicological information

Toxicity to soil microorganisms

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Description of key information

Key value for chemical safety assessment

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The terrestrial chemical safety assessment has been conducted using the Equilibrium Partitioning method (EQPM). It is recognised that the aquatic PNEC used in the EQPM does not take into account any indicator for effects in aquatic microorganisms. However, the OECD 209 activated sludge respiration inhibition test recorded a 3-h NOEC of ≥1000 mg/l (nominal) and no inhibition was observed in the test (Seyfried, 2005, see Section 6.1.7). Therefore it is unlikely that the PNECterrestrial based on aquatic ecotoxicity test results would not be protective for terrestrial microorganisms. The chemical safety assessment using EQPM does not suggest any unacceptable risks for the terrestrial compartment.