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Environmental fate & pathways

Biodegradation in soil

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Description of key information

No data on biodegradation in soil are available.

Key value for chemical safety assessment

Additional information

According to Regulation (EC) 1907/2006, Annex IX, Section 9.2.1.3, column 2, soil simulation testing does not need to be conducted if the substance is readily biodegradable. The substance and all of the constituents of the registration item are predicted to moderately degrade in the environment (see IUCLID Ch. 5.2.1). Additionally, no one out of the seven main ingredients is considered to persist in the environment, neither in sediment, soil or water (IUCLID Ch. 5.2.1). Moreover, based on modeled data relevant degradation products present in concentration of ≥ 0.1% (equivalent to quantity setting in OASIS CATALOGIC: ≥0.001 [mol/mol parent]) do neither fulfill the PBT criteria (not PBT) nor the vPvB criteria (not vPvB).

In accordance with Regulation (EC) No 1907/2006, Annex IX, Section 9.2, 9.2.1.3, Column 2, soil simulation testing does not need to be conducted as the chemical safety assessment according to Annex I indicate that there is no need to investigate further the degradation of the substance and its degradation products. The risk characterization ratios (RCRs) of the chemical safety assessment are below 1, indicating that the risks are acceptable. In addition, soil is not a compartment of concern.

Moreover, direct exposure of the soil compartment is unlikely because over time the substance will preferentially distribute into the compartment water and partly into the compartments water (IUCLID Ch. 5.4.3). It could be shown that the substance is partly biodegradable in water (IUCLID Ch. 5.2.1). Therefore, no simulation tests on biodegradation of the substance are provided.