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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

The biodegradation of L-aspartic acid was 73.0 % within 28 days, when applying the OECD 301B method.
On day 4 the mean degradation already reached 63.1 %. Therefore the test item reached the pass level for ready biodegradability of 60 % ThCO2 and for the 10d-window.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

The result of the OECD 301B CO2-evolution test was supported by 2 other sources:

- The Japanese databank reports D,L-aspartic acid to be readily biodegradable.

- A BOD-test reports a 56 % biodegradation for L-aspartic acid within a not reported time.