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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Description of key information

Key value for chemical safety assessment

Half-life in freshwater sediment:
1.8 d
at the temperature of:
22 °C

Additional information

Biotransformation and the transformation products in river sediment were studied over a 100-day period. The test system included 20 g wet sediment, 30 ml aqueous solution (25 ml river water) and 50 µg test substance per test vessel. Additionally, the test system used C18 SPE cartridges to capture volatile parent and transformation products from the headspace. Biotransformation in the aerobic sediment system was rapid.

The underlying hypothesis for the read-across is the test substance is transformed metabolically to 6:2 FTOH. Additional documentation, provided within IUCLID, supports the read-across approach.