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EC number: 235-122-5
CAS number: 12070-10-9
reliable studies (Klimisch 1 or 2) are available for the chronic
toxicity of vanadium substances (NaVO3) to freshwater invertebrates and
cover the reproduction of 3 crustacean species (Ceriodaphnia
quadrangula, Daphnia dentifera, Daphnia magna), the reproduction
(population size) of annelid worms (Aelosoma sp.) and the growth rate of
a rotifer species (Brachionus calyciflorus). Effect concentrations range
from 50 µg V/L for D. dentifera (Schiffer and Liber, 2017) to 1344 µg
V/L for D. magna (Beusen and Neven, 1987).
reliable chronic EC10 values of 4500 and 4150 µg V/L for the emergence
rate of larvae of the midge species Chironomus riparius and Chironomus
dilutus are further available from water-spiked sediment toxicity tests
by Schiffer and Liber (2017). Additionally, an unbound NOEC ≥ 6137 µg
V/L was determined for C. riparius by Simon (2017) in a reliable,
water-spiked sediment toxicity test according to OECD TG 219.
The lowest chronic NOEC/EC10 value for aquatic invertebrates of 50 µg
V/L was observed in a 21-day chronic study on the effect of NaVO3 on the
reproduction of Daphnia dentifera (Schiffer and Liber, 2017; Klimisch 2).
Regarding marine toxicity, reliable studies (Klimisch 2) are
available for the chronic effect of V2O5 on the 48-h development of eggs
of the mollusc species Crassostrea gigas and the echinoderm
Paracentrotus lividus (Fichet and Miramand, 1998; Klimisch 2). For
Crassostrea gigas, a 48-h LOEC value of 50 µg V/L was observed, whereas
the 48-h NOEC for Paracentrotus lividus amounts to 50 µg V/L. Because
less than 20% effects were observed at the lowest dose of 50 µg V/L for
the development of Crassostrea gigas eggs, the NOEC was calculated as
LOEC/2 resulting in a NOEC of 25 µg V/L in accordance with ECHA guidance
on IR & CSA, R.10 (2008). Effects on the the development of eggs are
because of the critical early life-stage considered as chronic. Thus,
the NOEC of 25 µg V/L for the effect of V2O5 on the 48-h development of
eggs of Crassostrea gigas derived using reliable data from Fichet and
Miramand (1998) is selected as key value for the chemical safety
assessment in marine water.
results are based on total dissolved V concentrations.
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