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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Based on the results of several tests there is evidence that 1,2-dichloro-4-nitrobenzene is not readily biodegradable (Bayer 1983, Bayer 1984; Hoechst  1982).

Key value for chemical safety assessment

Additional information

All available tests have several drawbacks as the documentation is insufficient for assessment (Bayer 1983, Bayer 1984, Hoechst 1982). But they all have in common that they showed the lack of ready biodegradability of 1,2-dichloro-4-nitrobenzene.

Therefore, the studies can be part of a Weight-of-Evidence approach supporting the evidence that 1,2 -dichloro-4 -nitrobenzene is not readily biodegradable as this is the most stringent classification with respect to environmental hazards.