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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Description of key information

LC50 earthworms > 1000 mg/Kg ww

Key value for chemical safety assessment

Short-term EC50 or LC50 for soil macroorganisms:
1 000 mg/kg soil dw

Additional information

The acute toxicity of Ammonium phosphonate was assessed based on Potassium phosphonate. The test item of Potassium phosphonate (KH2PO3/K2HPO3) was tested on earthworms Eisenia fetida in a full test.

Concerning mortality endpoints, the LC0, LC100,LC50, the NOEC and the LOEC values at 7 and 14 days, were assessed as equal and greather than 1000 mg/Kg d.w.