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Ecotoxicological information

Short-term toxicity to fish

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Link to relevant study record(s)

Description of key information

No mortality and no effect of methylal at concentrations up to 1 g/L was observed among Brachydanio rerio (new name: Danio rerio) during 96-hour exposure in a study with a reliability code of 1. Thus, NOEC is 1 g/L and LC50 for freshwater is higher to 1 g/L.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
1 g/L

Additional information

LC50 value for freshwater fish is supported by two supporting studies. In the first one, LC50 and EC50 were determined to be 6.99 and 6.36 g/L, respectively, in Pimephales promelas. In the second one, methylal at 5.0 ppm induced no mortality to Salmo trutta (trout), Lepomis macrochirus (Bluegill sunfish), Perca flavescens (Yellow perch), Carassius auratus (Goldfish) during 24 hours.