Registration Dossier
Registration Dossier
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EC number: 618-920-1 | CAS number: 93280-40-1
Endpoint summary
Administrative data
Description of key information
The substance is acutely toxic to aquatic organisms.
Additional information
Short-term toxicity to fish
The substance is acutely harmful to fish.
Lowest valid effect value:
96-h LC50 = 17 mg V/L (meas., filtered; OECD 203, Oncorhynchus mykiss)
Corrected for the molecular weight of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1): 96-h LC50 = 58.2 mg/L
Long-term toxicity to fish
Lowest valid effect value:
30-d EC10 = 76 µg V/L (meas., two-generation fish test: growth of second generation; Jordanella floridae)
Corrected for the molecular weight of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1): 30-d EC10 = 259 µg/L
Short-term toxicity to aquatic invertebrates
The substance is acutely toxic to aquatic invertebrates.
Lowest valid effect value:
48-h EC50 = 658 µg V/L (meas., filtered; OECD 202, Daphnia magna)
Corrected for the molecular weight of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1): 48-h EC50 = 2.2 mg/L
Long-term toxicity to aquatic invertebrates
14-week NOEC = 560 µg V/L (nom; population dynamics Daphnia magna, ephippia production)
Corrected for the molecular weight of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1): 14-week NOEC = 1905 µg/L
Toxicity to aquatic algae and cyanobacteria
The substance is acutely toxic to aquatic algae and cyanobacteria.
Lowest valid effect values:
72-h ErC50 = 2907 µg V/L (meas.; OECD 201, Desmodesmus subspicatus)
72-h ErC10 = 716 µg V/L (meas.; OECD 201, Desmodesmus subspicatus)
Corrected for the molecular weight of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1): 72-h ErC50 = 9888 µg/L; 72-h ErC10 = 2435 µg/L
Toxicity to microorganisms
The inhibition of the degradation activity of activated sludge is not anticipated when the substance is introduced in appropriately low concentrations.
Lowest valid effect value:
3-h EC20 > 100 mg test material/L (nom., CAS 6523289-5; OECD 209, activated sludge of a predominantly domestic sewage)
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