Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

According to the key biodegradation study (OECD Guideline 301D, GLP), the registered substance is readily biodegradable (82% biodegradation after 28 days, within the 14-d window). Therefore, no environmental persistence of the substance is anticipated and no further tests on degradation (abiotic and biotic) in the environment are necessary.

The adsorption coefficient (Koc) of the registered substance was determined at 599.8 L/kg, corresponding to a geometric mean of QSAR/calculation methods. Therefore the substance has low mobility in soils based on the system proposed by McCall et al. (1981).

Regarding volatilisation, it is assumed that the registered substance will volatilise slowly from water surfaces under environmental conditions, according to Lyman et al. (1982), due to the Henry’s Law constant estimated at 0.32 Pa.m3/mol at 20-25°C (using equation R.16 -4 from Echa Guidance document R.16 (version 2, May 2010) with a vapour pressure of 0.274 Pa and a water solubility of 0.158 g/L).

The BCF of the registered substance was determined at 101.8 L/kg, corresponding to a geometric mean of QSAR/calculation methods, which can be considered supported evidence that biomagnification does not occur for this substance. The registered substance is not expected to be bioaccumulable according to CLP and PBT criteria (BCF < 500 and 2000, respectively).

Additional information