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EC number: 618-920-1 | CAS number: 93280-40-1
Toxicity to terrestrial arthropods
Administrative data
Link to relevant study record(s)
Description of key information
28 -d EC10 = 3 mg/kg soil dw (ISO 11267, Folsomia candida, reproduction)
Corrected for the molecular weight of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1): 28-d EC10 = 10.2 mg/kg soil dw
Key value for chemical safety assessment
- Long-term EC10, LC10 or NOEC for soil dwelling arthropods:
- 10.2 mg/kg soil dw
Additional information
No data are available for the toxicity of vanadylhydrogenphosphate-hemihydrate (CAS 93280 -40 -1) to terrestrial organisms. Therefore, data available for other vanadium compounds is used in a read-across approach.
An OECD guideline study is available for the effects of sodium metavanadate (CAS 13718 -26 -8) to Folsomia candida (ISO 11267) (Lanno, 2016; Ohio University). The study was performed under GLP. The arthropods were exposed to spiked natural soils which were tested immediately after spiking and also after ageing. Test concentrations were verified using ICP-OES after aqua regia digestion of the soil samples. The results are based on Vanadium concentrations.
For the assessment of the toxicity of vanadylhydrogenphosphate-hemihydrate (CAS no. 93280-40-1), the effect value based on the vanadium concentration must be corrected for the molecular weight of vanadylhydrogenphosphate-hemihydrate (29.4% V). The corrected effect values are given above (see “Description of key information”).
An overview on the results is given in the following table.
Species |
Guideline |
Duration |
Effect value |
Freshly spiked (mg V/kg soil dw (measured)) |
Aged (mg V/kg soil dw (measured)) |
Soil |
Folsomia candida |
ISO 11267 |
28 d |
EC10 |
44 |
- |
Zwijnaarde |
Folsomia candida |
ISO 11267 |
28 d |
EC10 |
4.5 |
71 |
Pustnäs |
Folsomia candida |
ISO 11267 |
28 d |
NOEC |
96 |
318 |
Säby; EC10 was not reliable |
Folsomia candida |
ISO 11267 |
28 d |
EC10 |
3 |
492 |
Hygum |
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