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Toxicity to soil microorganisms

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toxicity to soil microorganisms
Data waiving:
exposure considerations
Justification for data waiving:
the study does not need to be conducted because direct and indirect exposure of the soil compartment is unlikely

Description of key information

No toxicity to soil microorgansims studies were available for tin bis(2-ethylhexanoate).

Key value for chemical safety assessment

Additional information

The relevant dissociated component of tin bis(2-ethylhexanoate), namely 2-ethylhexanoic acid is water soluble (4,500 mg/L) and has a very low potential for adsorption to organic matter as indicated by a log Koc of 1.6. Therefore, the predicted no effect concentration (PNEC) for soil was derived from the PNEC for freshwater using the equilibrium partitioning method. Using this PNECsoil the risk characterization shows that the PEC/PNECsoil ratio for the terrestrial environment is <1, indicating no need for further information and testing.