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Ecotoxicological information

Sediment toxicity

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Description of key information

No reliable toxicity data to sediment organisms are available for synthetic rutile. A read-across approach with upgraded ilmenites (UGI) and TiO2 is used. Reliable data are available for both freshwater and marine sediments. Results for chronic toxicity of upgraded ilmenite slags (>80% TiO2) to Hyalella azteca in freshwater sediment did not show toxicity up to 10% or 100,000 mg/kg dw (ARCADIS, 2008). TiO2 exhibited no effect up to 14,989 mg/kg dw after 10 days exposure via dried sediment to the marine amphipod Corophium volutator (Hudson, 2007).

Key value for chemical safety assessment

EC50 or LC50 for freshwater sediment:
100 000 mg/kg sediment dw
EC50 or LC50 for marine water sediment:
14 989 mg/kg sediment dw
EC10, LC10 or NOEC for freshwater sediment:
100 000 mg/kg sediment dw

Additional information