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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

A calculated Koc value of 129 L/kg indicates that the substance will have a low potential to adsorb to sediment/soil because the value is below 500 -1000 as indicated by the REACH endpoint specific guidance chapter R.7A.

To assess the volatilisation potential of the substance a Henry's law constant was calculated which showed a value of 1.81E-04 Pa· m³/mol (at 12 °C). Based on this value it may be concluded that Lyral is essentially non-volatile from water. From the distribution modelling results e.g. SimpleTreat model described below it can be concluded that volatilisation is of minor importance in the environmental behaviour of Lyral.

The SimpleTreat model, which is incorporated in EUSES, simulates the distribution of the substance in a Sewage Treatment Plant. Model calculations show that 86% of the substance will be degraded and that 13%, 1% and negligible % will partition to water, sewage sludge and air, respectively.