Registration Dossier
Registration Dossier
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EC number: 231-954-8 | CAS number: 7782-41-4
Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
Description of key information
The toxicity of fluorine to soil macroorganisms is derived from experimental data with its degradation product fluoride.
Key value for chemical safety assessment
- Long-term EC10, LC10 or NOEC for soil macroorganisms:
- 1 200 mg/kg soil dw
Additional information
No data is available on the effects of fluorine on the growth, maturity and and fertility of the earthworm. However, in a terrestrial environment the substance exists predominantly as fluoride ions. Therefore available data from studies with fluoride are given as indication of the terrestrial toxicity of fluorine.
The toxicity of various fluoride compounds to Eisenia fetida was investigated over a period of 22 weeks. At higher concentrations sodium fluoride, potassium fluoride and the sodium salt of fluoroacetic acid reduced the growth of E. fetida significantly. Calcium fluoride had no effect. The rate of maturity of the
earthworms was also significantly reduced when sodium fluoride and potassium fluoride was used. The number of hatchlings was reduced in the presence of sodium fluoride, while the number of cocoons was reduced in the presence of a low concentration of sodium fluoride and potasium fluoride (Vogel & Ottow, 1992).Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
