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Ecotoxicological information

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All key studies regarding acute toxicity to fish, daphnids and green algae indicate the low hazard potential of Imidazole as it is acutely not harmful to aquatic organisms with EC50/LC50 values above 100 mg/l. The lowest EC50/LC50 of 133 mg/l derived from the acute test on algae provides the value for the PNEC calculation.