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Short-term toxicity to aquatic invertebrates

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Description of key information

 

In a static immobilization test to Daphnia magna according to OECD 202 the EC50 was determined to be 16.5 mg/L after 48 hours exposure under GLP conditions.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
16.5 mg/L

Additional information

In a static key immobilization test Daphnia magna (< 24 h old) were exposed to the test item for 48 hours according to OECD 202 (1992) under GLP conditions. The Daphnia were exposed to a range of concentrations, nominally 2.5, 5, 10, 20 and 40 mg/L of the test substance dissolved in water. The test item is poorly water soluble. Measured concentrations ranged from 102 — 192 % of nominal values at 0 hours (<2, 4.8, 7.2, 12, 22.8, 40.8 mg/L), and from 105 — 144 % of nominal values at 48 hours (<2, 3.6, 6, 10.8, 22.8, 42 mg/L), respectively. The 48h-EC50 was determined to be 16.5 mg/L (geometric mean).