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Acute toxicity tests to fish and daphnia as well as tests to determine the toxicity to aquatic algae and microorgansims have been performed with Ditetrahydrofurylpropane according to OECD guidelines and GLP principles.

The following results were obtained:

- acute toxicity to fish: 96 -hour LC50 > 100 mg/L (nominal)

- acute toxicity to daphnia: 48 -hour EC50 > 220 mg/L (nominal)

- toxicity to aquatic algae: 48 -hour EC50 (growth rate reduction) > 320 mg/L (nominal), NOEC (growth rate reduction) 10 mg/L

- toxicity to microorganisms: 3 -hour EC50 > 100 mg/L; NOEC = 100 mg/L

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