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The seedling emergence/growth test performed with MCA with three plant species is the only terrestrial ecotoxicity test suitable for deriving a PNECterrestrial. This test resulted in a 21 day NOEC of 3.2 mg/kg dw. Taking also the potential loss of the substance during the experiment into account, a time average NOEC of 0.6 mg/kg dw (assuming a first order rate degradation during 21 day experiment) is estimated based on the neutral soil DT50 value of 66 hours.

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