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Ecotoxicological information

Toxicity to soil microorganisms

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Description of key information

No reliable data are available for the effect of synthetic rutile on soil microorganisms and read-across to upgraded ilmenites (UGI) is used. Reliable chronic toxicity data are available for the effect of upgraded ilmenite slags (>80% TiO2) to the nitrification activity in a natural soil. The lowest NOEC was 10,000 mg/kg dw (observed for the UGI slag RBM SO4).

Key value for chemical safety assessment

Long-term EC10 or NOEC for soil microorganisms:
10 000 mg/kg soil dw

Additional information