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Environmental fate & pathways

Biodegradation in soil

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The performance of tests for biodegradation in soil is scientifically unjustified.
REACH Regulation (EC) No 1907/2006, Annex IX, Sect. 9.2.1.3, Col. 2, states as follows:
“9.2.1.3: The study need not to be conducted:
- if the substance is readily biodegradable, or
- if direct and indirect exposure of soil is unlikely. ”
The test substance is practically insoluble in water. In addition, low exposure is guaranteed, as no sludge application from STP on soil will be done and aerial deposition is negligible. Thus, simulation testing for biodegradation in soil was considered not scientifically justified.

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