Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The distribution in a sewage treatment plant (STP) has been estimated using the SimpleTreat model (implemented in EUSES 2.1.2), see table below.

Table: Distribution modelling for STP

Fraction of emission directed to air by STP

22.6

[%]

Fraction of emission directed to water by STP

4.64

[%]

Fraction of emission directed to sludge by STP

72.8

[%]

Fraction of the emission degraded in STP

0

[%]

L4 is not expected to undergo any significant biodegradation, and is predicted to have very high Henry’s Law constant and has high measured log Kow/log Koc. Sludge is the main compartment to which it is expected to partition in a sewage treatment plant, with partition to air and water also being significant.