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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/Chesar 3.4), see table below. Due to the rapid hydrolysis of the registered substance, the distribution calculation is done for the hydrolysis products, octylsilanetriol and methanol.

Table: Distribution modelling for STP





Release directed to water




Release directed to air 




Release directed to sludge 




Release degraded 




Octylsilanetriol is not expected to undergo any significant biodegradation and is predicted to have low Henry’s Law constant and low log Kow/log Koc. Distribution modelling for STP indicates that water is the main compartment to which it is expected to partition in a sewage treatment plant. Water is also likely to be the main compartment to which octylsilanetriol will partition in the wider environment.