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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Read-across from 96 h static acute toxicity studies with cyanuric acid with rainbow  trout, bluegill sunfish and fathead minnows (freshwater species) and inland silverslides (marine species).   

Key value for chemical safety assessment

LC50 for freshwater fish:
1 510 mg/L
LC50 for marine water fish:
12 087.08 mg/L

Additional information

Read-across:

1. Based on the experimental results obtained with the analogue cyanuric acid (96 h-LC50 > 1000 mg/L), the read-across approach is applied and the LC50 for substance trisodium cyanurate is calculated to be greater than 1510 mg/L (in Lepomis macrochirus) .

2. Based on the experimental results obtained with the analogue cyanuric acid (96 h-LC50 > 2100 mg/L) and the molecular weights, the read-across approach is applied and the LC50 for substance trisodium cyanurate is calculated to be greater than 3172.85 mg/L under test conditions (in Salmo gairdneri (new name: Oncorhynchus mykiss)).

3. Based on the experimental results obtained with the analogue cyanuric acid (96 h-LC50 > 2100 mg/L) and the molecular weights, the read-across approach is applied and the LC50 for substance trisodium cyanurate is calculated to be greater than 3172.85 mg/L (in Pimephales promelas).

4. Based on the experimental results obtained with the analogue cyanuric acid (96 h-LC50=8000 mg/L, 96 h-NOEC=4000 mg/L and 96 h-LOEC=8000 mg/L) and the molecular weights, the read-across approach is applied and the LC50, NOEC and LOEC for substance trisodium cyanurate are calculated to be >12087.08 mg/L, 6043.54 mg/L and 12087.08 mg/L respectively (in Menidia beryllina).