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Short-term toxicity to aquatic invertebrates

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Description of key information

Methanol: EC50(48h): >10000 mg/L

Key value for chemical safety assessment

Additional information

In a reliable standard static test with Daphnia magna no adverse effects were reported at 10000 mg/L after 48-h exposure (Kuehn, 1989). Toxicity values well above 10000 mg/L reported also for Daphnia magna in other studies support this finding: 22200 mg/L (EC50, 48h) (Rossini and Ronco 1996), 20803 mg/L (EC50, 24h) (Lilius et al. 1995), and 22910 mg/L (LC50, 24h) (Reiff 1976). Aditionally short-term toxicity data are available from tests conducted with other test organism: Mytilus edulis, LC50 (96h) = 15900 mg/L (Helmstetter et al. 1996) and Moina micrura, LC50 (96h) = 4820 mg/L. Although the lowest toxicity was reported for Moina micrura this is not a standard organism, which does not occur in cold-temperate regions. For this reason it is considered less relevant than Daphnia and was not used in in the PNEC derivation.