Tris(pentane-2,4-dionato-O,O')vanadium

Toxicity to soil microorganisms

Link to relevant study record(s)

Reference

Endpoint:

toxicity to soil microorganisms

Type of information:

read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

key study

Justification for type of information:

please refer to Read-across statement attached in section 13

Reason / purpose for cross-reference:

read-across source

Duration:

28 d

Dose descriptor:

EC10

Remarks:

Vanadium toxicity thresholds (10% effective concentration)

Effect conc.:

129.9 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

nitrate formation rate

Remarks on result:

other: Result for Guadalajarda topsoil (Spain)

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Remarks:

median effective concentration

Effect conc.:

888.8 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

nitrate formation rate

Remarks on result:

other: Result for Guadalajarda topsoil (Spain)

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC10

Remarks:

toxicity thresholds (10% effective concentration)

Effect conc.:

396.5 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

respiration rate

Remarks on result:

other: Result for Guadalajarda topsoil (Spain)

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Effect conc.:

3 965.4 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

respiration rate

Remarks on result:

other: Result for Guadalajarda topsoil (Spain)

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC10

Effect conc.:

95.7 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

nitrate formation rate

Remarks on result:

other: Result for Pustnäs soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Effect conc.:

683.7 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

nitrate formation rate

Remarks on result:

other: Result for Pustnäs soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC10

Effect conc.:

68.4 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

respiration rate

Remarks on result:

other: Result for Pustnäs soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Effect conc.:

1 367.4 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

respiration rate

Remarks on result:

other: Result for Pustnäs soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Effect conc.:

4 717.4 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

nitrate formation rate

Remarks on result:

other: Result for Saby soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Effect conc.:

164.1 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

respiration rate

Remarks on result:

other: Result for Saby soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Effect conc.:

2 256.2 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

nitrate formation rate

Remarks on result:

other: Result for Ter Munk soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Effect conc.:

2 187.8 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

respiration rate

Remarks on result:

other: Result for Ter Munk soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Effect conc.:

191.4 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

nitrate formation rate

Remarks on result:

other: Result for Zwijnaarde soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Duration:

28 d

Dose descriptor:

EC50

Effect conc.:

1 504.1 mg/kg soil dw

Nominal / measured:

meas. (not specified)

Conc. based on:

element

Remarks:

converted to VAA

Basis for effect:

respiration rate

Remarks on result:

other: Result for Zwijnaarde soil

Remarks:

for details on the calculation please refer to 'Overall remarks'

Description of key information

Assay of potential nitrification rate: EC50: 191.43 to 4717.46 mg VAA/kg soil.

Assay of substrate-induced respiration: EC50: 1367.38 to 3965.40 mg VAA/kg soil.

The potential nitrification rate EC10 values were all in the range of the vanadium background concentrations with the exception of the Saby soil.

Key value for chemical safety assessment

Short-term EC50 for soil microorganisms:

191.43 mg/kg soil dw