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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
short-term toxicity to fish
Type of information:
other: review
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The ICD contains the summarised results of a number of short-term fish toxicity studies
Reason / purpose for cross-reference:
read-across: supporting information
Qualifier:
no guideline followed
Principles of method if other than guideline:
The ICD summarises the results of a number of non-guideline studies
GLP compliance:
not specified
Analytical monitoring:
not specified
Vehicle:
no
Test organisms (species):
other: various
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
>= 51 - <= 340 mg/L
Nominal / measured:
not specified
Conc. based on:
other: fluoride ion (F-)
Basis for effect:
mortality (fish)
Sublethal observations / clinical signs:

The ICD reports short-term fish LC50 values in the range 51 -340 mg F-/L

Validity criteria fulfilled:
not specified
Conclusions:
The ICD reports short-term fish LC50 values in the range 51 -340 mg/L.
Executive summary:

The ICD reviews the available data for sodium fluoride and reports short-term fish LC50 values in the range 51 -340 mg/L.

Description of key information

No studies have been conducted on the reaction mass of CaF2, CaSO4 and CaCO3. Instead information is available on the 3 different constituents. 


Short-term toxicity to fish has been evaluated for calcium sulfate and calcium carbonate. As expected, no hazards have been identified for both constituents.


As no reliable studies are available for calcium fluoride, fish acute toxicity data published on NaF have been used. The chosen key value was the lowest reported LC50 among all reliable evaluated studies. The reported value by Janssen et al. (1989) on Oncorhynchus mykiss, 96h exposure (EU RAR and ICD) was 51 mg F-/ L, which translates to 104.7 mg CaF2/L. Note that this value is above water solubility of CaF2 being 15 mg/L at 25°C. No reliable information is available on marine water fish.


 


On the basis of the available LC50 for CaF2, the LC50 value for the reaction mass can be concluded: 209.4 mg RM/L. This value is calculated by taking into account that the reaction mass contains only 50% of CaF2 (ca. 47.5 w/w % CaF2) and that the additional of Ca2+ through CaSO4 and CaCO3 would even further reduce the toxicity of CaF2 as free F- will be complexed.


 


The water solubility of calcium fluoride is lower (15 mg/L) than the LC50 value (209.4 mg/L based on fluoride equivalent for the reaction mass), no toxicity of the reaction mass of calcium fluoride, calcium sulfate and calcium carbonate is expected on aquatic fish at short term.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Dose descriptor:
LC50
Remarks:
The water solubility of calcium fluoride is lower (15 mg/L) than the LC50 value, no toxicity of the reaction mass of calcium fluoride, calcium sulfate and calcium carbonate is expected on aquatic fish at short term.
Effect concentration:
209.4 mg/L

Additional information