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Environmental fate & pathways

Biodegradation in soil

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Description of key information

Key value for chemical safety assessment

Half-life in soil:
1.6 d
at the temperature of:
22 °C

Additional information

Biodegradation in the aerobic soil was rapid with an estimated half-life of 1.6 days. After an initial sharp decline, the test substance concentration gradually levelled off after 28 days at ≈3.5 – 6.2% of the total mass applied at day 0. This would be equal to 93.8- 96.5% primary degradation by day 28. Metabolite levels reached steady-state at 120 days.

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.