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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

No data are available for calcium fluoride. Available studies on fluoride were used as read-across source. Effective concentrations were recalculated taking in account the different molecular weight of the source and target substance.

In the EU RAR 2001 review, the long-term NOEC-values for micro-organisms range from 7.1 to 510 mg/l. Only the test with 3 h exposure of activated sludge was performed according to international accepted guidelines, yielind an EC10 of 510 mg/L F-. In this test the given EC10-value for respiration inhibition is considered to be an equivalent for a NOEC. Using the molecular weight, this results in a NOEC of 1047.51 mg/L CaF2.

The NOEC-values for other micro-organisms are only used as supportive information.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
1 047.51 mg/L

Additional information

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