Registration Dossier
Registration Dossier
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EC number: 617-298-9 | CAS number: 82097-50-5
Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
Two aquatic toxicity studies (no guidelines followed, Volz 2003b and Volz 2003b) on Elodea canadensis and Myriophyllum spicatum conducted in a water-sediment system are available and have been presented in the aquatic toxicity section.
Elodea canadensis was exposed for 25 days in a static system. Nominal concentrations were 0.01, 0.03, 0.09, 0.27 and 0.81 µg/L. The mean measured concentrations were 0.0077, 0.024, 0.077, 0.25 and 0.83 µg test item/L. The 25-d EC50 value for growth (growth rate of total shoot length and biomass) was determined to be > 0.81 µg/L (nominal concentrations). The NOEC value for growth was 0.81 µg/L, based on nominal concentrations (Volz 2003a).
Myriophyllum spicatum was exposed for 14 days in a static system. Nominal concentrations were 0.002, 0.006, 0.018, 0.045, 0.16 and 0.49 µg/L. The mean measured concentrations were < LOQ, 0.0042, 0.016, 0.041, 0.14 and 0.41 μg test item/L. The 14-d EC50 value for growth (growth rate of total shoot length and biomass) was determined to be > 0.41 µg/L, based on mean measured concentrations. The NOEC value for growth was 0.41 µg/L, based on mean measured concentrations (Volz 2003b).
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