Registration Dossier

Ecotoxicological information

Sediment toxicity

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

No data available.

Key value for chemical safety assessment

Additional information

In Annex X section 9.5.1 of Regulation (EC) No 1907/2006, it is laid down that chronic tests on sediment organisms shall be proposed by the registrant if the chemical safety assessment indicates the need to investigate further the effects on sediment organisms. According to Annex I of this regulation, the chemical safety assessment triggers further action when the substance or the preparation meets the criteria for classification as dangerous according to Regulation EC 1272/2008 or is assessed to be a PBT or vPvB. The hazard assessment of the substance reveals neither a need to classify the substance as dangerous to the environment, nor is it a PBT or vPvB substance, nor are there any further indications that the substance may be hazardous to the environment.

 

In addition, indirect exposure to sediment is unlikely since the substance is readily biodegradable (but without fulfilling the 10-day window criterion). For substances being considered as „readily biodegradable“, it can be assumed that they will be biologically degraded within the STP-process. As the log Koc and log Pow of the substance is below 3 and no cationic and surface active properties are given a low adsorption potential is indicated. Hence, an adsorption to activated sludge, suspended matter or sediment particles is unlikely. In special cases, if the substance is not entering the STP-process but is readily biodegradable, it can be assumed that it will be rapidly biological degraded in the surface water. As a consequence, a transfer to the sediment compartment is unlikely.

Therefore, no tests on sediment organisms are provided.