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Environmental fate & pathways

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Additional information

The distribution in a sewage treatment plant (STP) has been estimated using the SimpleTreat model (implemented in EUSES 2.1.2/Chesar 3.0), see table below. The distribution calculation is performed for the parent, triethylsilane due to its slow hydrolysis.

Table: Distribution modelling for STP

Fraction of emission directed to air by STP



Fraction of emission directed to water by STP



Fraction of emission directed to sludge by STP



Fraction of the emission degraded in STP




Triethylsilane is not expected to undergo any significant biodegradation, and is predicted to have high Henry’s Law constant, moderate log Kow and low log Koc. Therefore, air is the main compartments to which it is expected to partition in a sewage treatment plant.