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Aquatic acute toxicity was assessed at 3 trophic levels; fish, aquatic invertebrates (Daphnia) and aquatic plants (algae). The respective EC50/LC50 values for fish, Daphnia and algae, indicated the test material was unlikely to be toxic to the aquatic environment owing to the low aqueous solubility and lack of toxicity observed in aquatic species up to the limit of aqueous solubility. The test material also has a low partition coefficient (Log Kow 2.3), indicating that bioaccumulation is not expected in the aquatic environment. No toxicity was observed in the activated sludge respiration inhibition test, indicating low potential for toxicity to sewage treatment plant micro-organisms.