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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

The 96-hour LC50 for potassium dicyanoaurate in rainbow trout is 5.7 mg/L. 

Key value for chemical safety assessment

LC50 for freshwater fish:
5.7 mg/L

Additional information

A 96-hour static test was carried out according to OECD 203 test guidelines, to determine the acute toxicity of potassium dicyanoaurate to Oncorhynchus mykiss (Brixham 2013).A range-finding and definitive test were performed with one replicate of 3 and 7 fish respectively. Fish were exposed to 5 concentrations of potassium dicyanoaurate and a control.

LC50, NOEC and LOEC values are reported and as measured concentrations of gold were maintained throughout the test, results are expressed as nominal concentrations.