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Short-term toxicity to aquatic invertebrates

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Description of key information

In a short-term toxicity test with Daphnia magna, no effects were observed in test concentrations up to 100 mg/l. Therefore the LC50 is above the loading rate of 100 mg test substance/liter.  

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
100 mg/L

Additional information

The acute toxicity of C.I. Pigment Yellow 34 to Daphnia magna was tested in a guideline study following OECD 202 (Reliability 2, acceptable restrictions). The test substance was not prepared according to the OECD 29 dissolution protocol (07/2001). An eluate was prepared by stirring 100 mg C.I. pigment Yellow 34 per liter for 24 hours and filtration over 0.2 micrometer. The concentrations of dissolved metals in the eluate were determined. The eluate contents for dissolved chromium, lead and barium were 0.10 mg chromium/l, 0.36 mg lead/l and 0.25 mg barium/l. The 48h-EC50 for daphnia was above the loading rate of 100 mg C.I. Pigment Yellow 34 per liter (BASF AG, 2000).