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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Link to relevant study record(s)

Description of key information

Nonanal is acutely toxic to crustaceae. The EC50(48 hrs) was 1.54 mg/L. This result can be read across to N-/iso- C13-C15 aldehydes.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
1.54 mg/L

Additional information

The acute toxicity of nonanal to Daphnia magna was investigated in a 48-hour GLP-guideline study according to OECD TG 202. The test concentrations were (nominal/mean measured) 0/< LOQ (control), 0.78/ 0.320, 1.3/0.706, 2.2/1.12, 3.6/2.14, and 6.0/3.48 mg/L. The measured concentrations ranged from 41-59 % of nominal concentrations, but were steady throughout the test. The analytical determination were performed with HPLC/UV. The physico-chemical parameters were within the recommended ranges. The validity criteria of OECD TG 202 were fulfilled. Based on mean measured concentrations, the 48-h EC50 was 1.54 mg/L and the 48-h LC50 3.48 mg/L. The NOEC was 0.706 mg/L (Ward, 2003).