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Diss Factsheets

Environmental fate & pathways

Biodegradation in soil

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Administrative data

Link to relevant study record(s)

Description of key information

Further biodegradation testing, including biodegradation simulation testing in soil, is waived, in accordance with Regulation (EC) No.1907/2006, Annexes VIII and IX, Column 2.

Key value for chemical safety assessment

Additional information

According to Regulation (EC) No.1907/2006, Annexes VIII and IX, Column 2, further biodegradation testing, including testing for ultimate biodegradation in soil, need not be conducted if the substance is readily biodegradable, or if direct and indirect exposure to soil is unlikely. Although the substance was not shown to be readily biodegradable, it was shown to exhibit properties of inherent, ultimate biodegradability. The experimentally-determined Kocfor tetrapropenyl succinic anhydride is 825, from read-across based on a grouping of substances (category approach); this value falls within the range of Kocvalues of 500-1000, below which substances are unlikely to adsorb to soil. The chemical safety assessment did not indicate the need to investigate the degradation of the substance; the risk characterisation ratios for sediment are below one. Therefore, in accordance with Annex I, the risks are considered to be controlled. Therefore, simulation testing in soil is not indicated.