Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
biodegradation in water: simulation testing on ultimate degradation in surface water
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Transformation products:
not measured
Endpoint:
biodegradation in water: sediment simulation testing
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Transformation products:
not measured

Description of key information

According to regulation (EC) No.1907/2006, Annex IX section 9.2.1.2, column 2, the simulation testing on ultimate degradation in surface water study need not be conducted if the substance is highly insoluble in water or the substance is readily biodegradable.  The water solubility of the test substance is 47 µg/L at 20 °C and is therefore classed as insoluble.  Furthermore a Ready Biodegradability test shows 54.1 % degradation after 28 days.  Although this does not fulfill the minimum criteria set out by the OECD method, it does however indicate that the material achieved >50 % within 30 days, highlighting its propensity for biodegradation. An inherent biodegradability test shows 80.5% degradation after 28 days, therefore the material is inherently biodegradable and as such not persistent in environmentally significant conditions.  Therefore given the poor solubility and propensity for biodegradation further studies are scientifically unjustified.

According to Regulation (EC) No. 1907/2006, Annex IX, section 9.2.1.4, column 2, sediment simulation testing need not be conducted if the substance is readily biodegradable or direct and indirect exposure of sediment is unlikely.  A Ready Biodegradability test shows 54.1 % degradation after 28 days.  Although this does not fulfill the minimum criteria set out by the OECD method, it does however indicate that the material achieved >50 % within 30 days, highlighting its propensity for biodegradation. An inherent biodegradability test shows 80.5% degradation after 28 days, therefore the test material is inherently biodegradable and as such not persistent in environmentally significant conditions.  Furthermore, given the use pattern of the substance direct or indirect exposure of sediment is unlikely.  Therefore, given the potential for biodegradation and the use patterns, further testing is scientifically unjustified.

Key value for chemical safety assessment

Additional information