Registration Dossier
Registration Dossier
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EC number: 451-900-9 | CAS number: 894406-76-9
Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
A key study (freshwater) was carried out according to EPA OPPTS 850.1735 (Whole Sediment Acute Toxicity of Invertebrates, freshwater) and ASTM E 1706-00 Guideline: Standard Test Methods for Measuring the Toxicity of Sediment-Associated Contaminants with Fresh Water Invertebrates. The 10-day EC50 values for midges (Chironomus tentans) exposed to test item in sediment for percent survival and growth (as ash-free dry weight) were 1209 and 1063 mg AI/kg dry sediment, respectively. Based on the results of this study, the LOEC was 500 mg AI/kg dry sediment and the NOEC was 250 mg AI/kg dry sediment for both percent survival and ash-free dry weight.
A second key study (marine) was carried out according to EPA OPPTS 850.1740 (Whole Sediment Acute Toxicity of Invertebrates, marine) and ASTM E 1367-99 Guideline: Standard Guide for Conducting 10-Day Static Sediment Toxicity Tests with Marine and Estuarine Amphipods. The 10-day EC50 value for Leptocheirus plumulosus exposed to test item in sediment was 26 mg AI/kg dry sediment based on percent survival. Based on the results of this study, the LOEC for survival was 25 mg AI/kg dry sediment and the NOEC was 13 mg AI/g dry sediment.
Key value for chemical safety assessment
- EC50 or LC50 for freshwater sediment:
- 1 063 mg/kg sediment dw
- EC50 or LC50 for marine water sediment:
- 26 mg/kg sediment dw
- EC10, LC10 or NOEC for freshwater sediment:
- 250 mg/kg sediment dw
- EC10, LC10 or NOEC for marine water sediment:
- 13 mg/kg sediment dw
Additional information
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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