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Long-term toxicity to fish

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The use of methyl acrylate as a monomer, almost exclusively in closed systems for the production of copolymers with other monomers such as acrylic acid and its salts, amides, esters, methacrylates, acrylonitrile etc., indicates that environmental exposure would be limited. The volatility of methyl acrylate provides for volatilization of any releases to the air. Methyl acrylate is slowly photodegradable and readily biodegradable, and accidental releases to the environment would not result in accumulation or persistence. The relatively high water solubility and corresponding low log Kow indicate that no bioaccumulation potential exists.

Acute effects levels were in the same range of concentrations for all three trophic levels, i.e. between 1 and 10 mg/L. In order to assess long-term toxicity towards aquatic organisms, a 21-day chronic life-cycle study with Daphnia magna was conducted under flow-through conditions with the structurally-related ethyl acrylate. The respective NOEC was 0.19 mg/L.