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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Description of key information

p-Cresol is biodegraded in aquifer sediment under anaerobic conditions and by anoxic river sediment within 3-4 weeks.

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Additional information

The substance is readily biodegradable and no biodegradation simulation test has to be performed for sediments according to REACH Annex IX column 2. However, there are several tests available. p-Cresol was completely biodegraded within 4 weeks in a freshwater sediment. p-Cresol was rapidly biodegraded (ca. 90 % after 70 h) in water, water-sediment-suspensions, and by intact sediment-water cores (eco-cores) of marine, estuarine, and freshwater origin. No lag-phase was observed, and pre-exposure did not accelerate degradation. p-Cresol is biodegraded in aquifer sediment under anaerobic conditions and by anoxic river sediment within 3-4 weeks. This result indicates, that p-cresol is amaerobically biodegradable.