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Sediment toxicity

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Key value for chemical safety assessment

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The test substance is not expected to be directly applied to sediment and an indirect exposure to sediment is unlikely since the substance is readily biodegradable and has a low sorption potential to organic matter (Koc= 10 L/kg, logKow = -2.4).For substances being considered as readily biodegradable, it can be assumed that they will be biologically degraded within the STP-process. Further a water/sediment biodegradation study demonstrated that TEA will not persist in sediment, as the mineralization half-life was 7.2 d. Based on the low sorption potential and the short half life in a water/sediment, exposure to the substance is unlikely hence, no tests on sediment organisms are provided.