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Description of key information

Acute fish toxicity: OECD TG 203; Danio rerio; 96 -h LC50 = 4.2 mg/L based on nominal concentrations.

Acute daphnia toxicity: OECD TG 202; Daphnia magna; 48-h EC50 = 7.9 mg/L based on nominal concentrations.

Algal toxicity: OECD TG 201; Selenastrum capricornutum: ErC50 (0 -72h) = 6.8 mg/L, NOEC = 0.86 mg/L based on mean measured concentrations.

Additional information

Acute fish toxicity

One reliable study is available. In this study performed under GLP according to OECD TG 203 groups of seven Danio rerio (Zebra fish) were exposed to the substance under semi-static conditions for 96 hours at nominal concentrations of 0, 1.0, 1.8, 3.2, 5.6 or 10 mg/L [Bouwman LM (2004)]. The 96 -h LC50 was 4.2 mg/L based on nominal test concentrations.

Acute daphnia toxicity

One reliable study is available. In this study performed under GLP according to OECD TG 202 Daphnia magna (5/replicate, 4 replicates/concentration) were exposed to the substance under semi-static conditions for 48 hours at nominal concentrations of 0, 1.0, 2.2, 4.6, 10, 22 or 46 mg/L [Bouwman LM (2003a)]. The 48-h EC50 was 7.9 mg/L based on nominal test concentrations.

One reliable study is available. In this study performed under GLP according to OECD TG 202 Daphnia magna (5/replicate, 4 replicates/concentration) were exposed to the substance under semi-static conditions for 48 hours at nominal concentrations of 0, 1.0, 2.2, 4.6, 10, 22 or 46 mg/L [Bouwman LM (2003)]. The 48-h EC50 was 7.9 mg/L based on nominal test concentrations.

Acute algal toxicity

One reliable study is available. In this study performed under GLP according to OECD TG 201 Selenastrum capricornutum (3 replicates/concentration) were exposed under static conditions to the substance for 72 hours at nominal concentrations of 10, 2.2, 4.6, 10, 22, 46 and 100 mg/L [Bouwman LM (2003b)]. The ErC50 (0 -72h) was 6.8 mg/L and the NOEC was 0.86 mg/L, both based on mean measured concentrations.