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EC number: 231-104-6 | CAS number: 7439-95-4
Toxicity to birds
Administrative data
Link to relevant study record(s)
Description of key information
The lowest reliable short-term toxicity to birds (Coturnix coturnix japonica) which is reported by Harland,B.F., M.R. Spivey Fox, and B.E.,Jr. Fry, after a 14 days exposure to magnesium was 1800mg/kg food ). One of the 14d NOAEC was 225 mg/kg bw/day
The NOELs can be converted to NOECs with the following two formulae:
NOECbird=NOAELbird.CONVbird
Conversion factors from NOAEL to NOEC for bird species Coturnix coturnix japonica is (bw/dfi)
bw = body weight (g); dfi: daily food intake (g/day)
NOECbird=225 x 8=1800 mg/kg/diet
EC50=5 x 1000 =5000 mg/kg food
This information will be take into account for birds toxicity for the derivation of PNEC.
For the assessment of secondary poisoning, the results always have to be expressed as the concentration in food in order to be able to compare it to the PEC.
Key value for chemical safety assessment
- Short-term EC50 or LC50 for birds:
- 9 000 mg/kg food
- Long-term EC10, LC10 or NOEC for birds:
- 1 800 mg/kg food
Additional information
The lowest reliable short-term toxicity to birds (Coturnix coturnix japonica) which is reported by Harland,B.F., M.R. Spivey Fox, and B.E.,Jr. Fry, after a 14 days exposure to magnesium was 1800mg/kg food ). One of the 14d NOAEC was 225 mg/kg bw/day
The NOELs can be converted to NOECs with the following two formulae:
NOECbird=NOAELbird.CONVbird
Conversion factors from NOAEL to NOEC for bird species Coturnix coturnix japonica is (bw/dfi)
bw = body weight (g); dfi: daily food intake (g/day)
NOECbird=225 x 8=1800 mg/kg/diet
EC50=5 x 1000 =5000 mg/kg food
This information will be take into account for birds toxicity for the derivation of PNEC.
For the assessment of secondary poisoning, the results always have to be expressed as the concentration in food in order to be able to compare it to the PEC.
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