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Environmental fate & pathways

Biodegradation in soil

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Endpoint:
biodegradation in soil: simulation testing
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:

Description of key information

The potential biodegradability of Trigonox 101 was extensively studied in screening test.  This study shows that Trigonox 101 was not degraded in prolonged Closed Bottle tests inoculated with unacclimated and acclimated sludge from the SCAS unit  Given the low  water solubility of 152 µg/l, the Kow of 7.34, rapid hydrolysis and the lack of toxicity observed in both the OECD 301 and 207 tests, further attempts to determine biodegradation of this compound in aqueous systems appear unwarranted.  The results of the chemical safety assessment indicate that the  risks to  STP microorganisms, soil, aquatic and sediment organisms are controlled during manufacture, formulation and uses of the  substance.  Conducting a test would not be of any added value to the risk assessment process

Key value for chemical safety assessment

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