Registration Dossier
Registration Dossier
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EC number: 203-471-2 | CAS number: 107-19-7
Sediment toxicity
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, Column 2 of Regulation (EC) No 1907/2006, it is laid down that long-term toxicity testing 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 hazardous according to Regulation EC 1272/2008 and its second adaptation 286/2011 or is assessed to be a PBT or vPvB. The assessment of the substance shows that the substance is not a PBT or vPvB substance. However, the substance is officially classified as Aquatic Chronic 2.
Direct and indirect exposure to sediment is unlikely. The substance is readily biodegradable according to OECD criteria (see IUCLID Ch. 5.2.1). For substances being considered as „readily biodegradable“, it can be assumed that they will be biologically degraded within the STP-process. 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 biologically degraded in the surface water. As the log Koc and log Kow of the substance are below 3, significant adsorption to particulate matter is not to be expected (see IUCLID Ch. 5.4.1). Hence, an adsorption to activated sludge, suspended matter or sediment particles is unlikely. Based on the low measured and estimated BCF values, bioaccumulation in aquatic organisms is not to be expected (see IUCLID Ch. 5.3.1). As a consequence, a transfer to the sediment compartment is unlikely.
As sediment is not an environmental compartment of concern, no test on sediment toxicity is performed. The equilibrium partitioning method has been used for assessing the hazard to sediment organisms.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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