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Toxicity to soil macroorganisms except arthropods

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Description of key information

The toxicity to soil macroorganisms of the test item was tested in an acute toxicity test to earthworm. The test was carried out in accordance with the OECD Guideline 207 (Earthworm, Acute Toxicity Tests).

Key value for chemical safety assessment

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

Additional information

Shot-term toxicity to invertebrates

The acute toxicity of KMPS triple salt to Eisenia foetida was determined in a dose-response 14-day test according to the OECD guideline 207. After 14 days of exposure to treated artificial soil the LC50 for earthworms was determined to be >1000 mg KMPS triple salt/mg soil. No effects on biomass or behaviour were evident.

LC0 = 1000 mg/kg soil

LC50 > 1000 mg/kg soil

Long term toxicity to invertebrates

In accordance to section 9.4.4 of Annex X, long-term toxicity to invertebrates, does not need to be conducted if direct and indirect exposure of the soil compartment is unlikely. An acute toxicity test in Eisenia fetida was done with KMPS triple salt. Up to a test concentration of 1000 mg/L no toxic effect could be observed (LC50 > 1000 mg KMPS triple salt/ L). This result shows that KMPS triple salt has a very low acute toxicity to earthworms (IUCLID section 6.3.1). As there are no other indications of concern for the terrestrial compartment, further long-term testing is considered to be scientifically not justified.