Registration Dossier
Registration Dossier
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EC number: 215-608-3 | CAS number: 1333-83-1
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
A number of non-standard studies are available for sodium fluoride; short-term LC50 values range from 51-340 mg/L.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 51 mg/L
Additional information
LC50 values of 107.5, 92.4, 118.5, 105.1, 64.1 ppm at 96, 120, 144, 168 and 192 h respectively are reported for rainbow trout (Camargo & Tarazona, 1991). The same authors report LC50 value for brown trout of 164.5, 135.6, 118.5, 105.1 and 97.5 ppm after 96, 120, 144, 168 and 192 h respectively. The EU RAR for hydrogen fluoride reports additional LC50 values of 299 mg/L (48h in Leuciscus idus); 51 mg/L in (96h in Onchorynchus mykiss) and 340 mg/L (96h in Gasterosteus aculeatus). The RIVM Integrated Criteria Document reports additional data, with LC50 values ranging from 128 -460 mg/L (Sloof et al, 1988). The RIVM document also reports LC50 values of >100 mg/L (the limit of solubility) for sodium fluoride in seawater.
The key value for the risk assessment is considered to be an LC50 of 51 mg/L in Onchoryhnchus mykiss reported by Janssen (1989) in the appendix to the ICD report.
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