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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Description of key information

Does not significantly accumulate in organisms

Key value for chemical safety assessment

Additional information

Two guideline studies on the bioconcentration of the substance in fish are available. In a guideline study conducted according to OECD 305 test fish of the species Salmo gairdneri were exposed to the substance in a flow-through system. Two substance concentrations were tested (0.5 mg/l and 0.08 mg/l). The solubility of the test substance was enhanced by addition of a solubiliser. Based on whole body weight of fish a BCF of 34 was determined at a substance concentration of 0.5 mg/l, whereas at 0.08 mg substance/L a BCF of 26 was detected (Ciba-Geigy, 1987). Comparable results were determined in a second study on bioaccumulation in fish. The test was conducted in a flow-through system with concentrations of 1.0 mg/l and 0.1 mg/l respectively. The substance solubility was increased by addition of a solubiliser. At test termination after 8 weeks of exposure a BCF < 2.4 was determined for a substance concentration of 0.1 mg/l. For 1.0 mg/l a BCF < 0.24 was detected ( Nihon Ciba-Geigy K.K., 1986)