The acute toxicity has been determined for fish (Oncorhynchus mykiss: 96 h-LC50 = 0.4 mg/l) and invertebrates
(Mysidopsis bahia: 96 h-EC50 > 0.18 - 0.32 mg/l, Daphnia magna: 48 h-EC50 = 1.0 mg/l). In tests with algae
(Selenastrum capricornutum, Scenedesmus subspicatus, Chlorella vulgaris) NOEC values in the range of 0.25 -
2.5 mg/l were obtained after exposure periods of 96 h. In long term tests with fish (Oncorhynchus mykissi) a
30 d - EC10 of 0.037 mg/l was found. A PNECaqua = 0.74 µg/l is derived from the aforementioned long term
NOEC using an assessment factor of 50.