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Long-term toxicity to aquatic invertebrates

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Description of key information

NOECreproduction (21d) > 100 mg/L (nominal), > 42 mg/L (measured)
NOECparental mortality (21d) = 56 mg/L (nominal), = 23 mg/L (measured)

Key value for chemical safety assessment

Additional information

A long-term study with Daphnia magna was performed to investigate the toxicity of Vinasses towards aquatic invertebrates (Bouwman, 2010). The study was conducted according to the OECD Guideline 211 “Daphnia magna Reproduction Test” in a semi-static test design for 21 days. Vinasses, residue of fermentation was applied in concentrations of 10, 18, 32, 56 and 100 mg/L. Based on the TOC content of the test material (i.e. 25.96%), the concentration of Vinasses in the aquatic samples was calculated and corrected for the control, resulting in average exposure concentrations of 3.8, 7.4, 13, 23 and 42 mg/L. No chronic effects on reproduction were observed at the highest test concentration of 42 mg/L, based on measured concentrations, corresponding to 100 mg/L, nominal concentration. The lowest no observed effect concentration was obtained for parental mortality: NOEC = 23 mg/L measured (56 mg/L nominal).