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Short-term toxicity to fish

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Description of key information

LC50 (96h) = 0.76 mg a.i./L (Oncorhynchus mykiss)

Key value for chemical safety assessment

Additional information

No short-term toxicity studies investigating the effects of KDDC in fish species are available and therefore, conclusions on this endpoint had to be drawn based on data from an analogue substance. The acute toxicity of SDDC (CAS No. 128-04-1) to Oncorhynchus mykiss was investigated by Van der Kerken (2003). This test was conducted according to OECD No. 203, Fish, Acute Toxicity Test (1992) and GLP. Fishes were exposed to the test material for 96 hours under a semi-static water regime (medium renewal took place every 24 hours). Mortality was observed at the two highest concentrations tested (0.57 and 1.13 mg a.i./L), resulting in a LC50 = 0.76 mg a.i./L. Additionally, other effects as reduced movement and weakness were reported (at concentrations of 0.28, 0.57 and 1.13 mg a.i./L).