Registration Dossier
Registration Dossier
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EC number: 244-334-7 | CAS number: 21324-40-3
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Microbial respiration and metabolism (N and P mineralisation) were assessed in a leaf-litter micro-ecosystem (Van Wensem and Adema, 1991). Nitrate mineralisation proved to be the process most sensitive to the presence of fluoride: a NOEC value of 5.3 micromol fluoride/g substrate dry weight was determined. This (101 mg F-/kg dw) corresponds to an LiPF6 concentration of 134.6 mg/kg dw.
Key value for chemical safety assessment
- Long-term EC10 or NOEC for soil microorganisms:
- 134.6 mg/kg soil dw
Additional information
Microbe-mediated NO3 mineralisation proved to be more sensitive to fluoride than mineralisation of NH4 or P.
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