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Ecotoxicological information

Toxicity to birds

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Description of key information

The lowest NOEC was observed in a 4-weeks study on the effect of food spiked with NH4VO3 on body weight of Gallus domesticus (Cervantes and Jensen, 1986; Klimisch 2). 

Key value for chemical safety assessment

Long-term EC10, LC10 or NOEC for birds:
5 mg/kg food

Additional information

Several reliable studies (all Klimisch 2) are available for the chronic toxicity (exposures between 2 and 20 weeks) of 4 V substances (VOSO4, Ca3(VO4)2, NH4VO3 and NaVO3) to mortality, body weight or reproduction of 3 bird species (Anas platyrhynchos, Gallus domesticus, Coturnix coturnix japonica). The NOEC values vary between 5 and ≥300 mg V/kg diet. Reliable toxicity data for birds do not differ significantly among vanadium substances tested: ≥110 mg V/kg diet for VOSO4, 20 - 50 mg V/kg diet for Ca3(VO4)2, 5 - ≥300 mg V/kg diet for NH4VO3 and a LOEC of 20 mg V/kg diet for NaVO3. All results are based on the total elemental V concetration in food.