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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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NTA acid is readily biodegradable. In Annex IX of Regulation (EC) No 1907/2006, it is laid down that the study on sediment simulation testing does not need to be conducted if the substance is readily biodegradable.

Nevertheless, a study of a simulation test in a river sediment system is available, which demonstrate that NTA is readily degraded in sediment under aerobic conditions [McFeters et al., 1990].