Registration Dossier
Registration Dossier
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EC number: 209-170-2 | CAS number: 557-34-6
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Short-term toxicity to fish: Weight of evidence: LC50 for fish is 2.46mg/L.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 2.46 mg/L
Additional information
Weight of evidence: Experimental results:
In the paper reported by Hale JG (1977) a Fish Acute Toxicity Test of zinc acetate dihydrate was performed with Rainbow trout (Salmo gairdneri). Each concentration was assayed in groups of ten fishes by duplicate. The LC50calculated from the TL50for the zinc acetate was 1.54 mg/L.
In the second paper, reported by Tsuji et al. (1986), a toxicity test of zinc acetate was carried out with killifish Oryzias latipes. The assay was performed at low (10 ºC), medium (20 ºC) and high temperature (30 ºC).
The LC50values after 48 hours were 78.55 mg/L (at 10 ºC and 20 ºC) and 70.0 mg/L (at 30 ºC).
In the last paper (Pickering and Henderson, 1966), an acute toxicity test was performed using Feathed minnows (Pimephales promelas). Acute toxicity, 24, 48 and 96h LC50 values were determined. Ten animals, divided in two groups, were used for each concentration.
The LC50 of zinc acetate was (96 h) LC50 = 2.46 mg/L.
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