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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Endpoint:
biodegradation in water: sediment simulation testing
Data waiving:
other justification
Justification for data waiving:
other:
Transformation products:
yes
Remarks:
Degradation is principally expected via abiotic transformation (aqueous). The transformation products expected in the environment are those identified in the abiotic degradation study (IUCLID 5.1.2), on which environmental hazard assessment is based.
No.:
#1
No.:
#2
Endpoint:
biodegradation in water: simulation testing on ultimate degradation in surface water
Data waiving:
other justification
Justification for data waiving:
other:
Transformation products:
yes
Remarks:
Degradation is principally expected via abiotic transformation (aqueous). The transformation products expected in the environment are those identified in the abiotic degradation study (IUCLID 5.1.2), on which environmental hazard assessment is based.
No.:
#1
No.:
#2

Description of key information

Key value for chemical safety assessment

Additional information

The chemical safety assessment according to REACH Annex I indicates that it is not necessary to conduct the simulation test on ultimate degradation in surface water and the sediment simulation test, or to identify degradation products.

Simulation tests (water and sediments) are not considered necessary because the risk characterisation ratios (RCRs) for the aquatic and sediment compartment, based on the assumption that the silanol hydrolysis product is not biodegradable, are <1.