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Toxicity to soil microorganisms

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toxicity to soil microorganisms
Data waiving:
study scientifically not necessary / other information available
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

According to Annex IX column 2 of REGULATION (EC) No 1907/2006, terrestrial toxicity studies do not need to be conducted if direct and indirect exposure of the soil compartment is unlikely.The substance is not expected to partition into the terrestrial environment according to the CSR which determined almost exclusive partitioning to the aquatic environment under several scenarios. Environmental monitoring data from the Perstorp production facilities did not detect any monomers in any soil and sediment samples. The measured Log Kow of 0.32 and the classification of the substance as readily biodegradable in the aquatic environment and low toxicity was found on aquatic microrganisms, provide further validation that exposure to soil microrganisms is not expected.


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