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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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The performance of a test for bioaccumulation in aquatic species, preferably fish, is scientifically unjustified.
REACH Regulation No. 1907/2006, Annex IX, Sect. 9.3.2, Col. 2, states as follows:
“9.3.2 The study need not be conducted if:
- the substance has a low potential for bioaccumulation (for instance a log Kow <= 3) and/or a low potential to cross biological membranes, or
- direct and indirect exposure of the aquatic environment is unlikely. ”
Direct and indirect exposure of the test item to water is unlikely. It can be assumed that upon contact with water and organic matter, the test item undergoes rapid degradation (hydrolysis) resulting in the formation of respective degradation products. Furthermore, the test item is considered to be inherently biodegradable. Therefore, the test item was considered to have no bioaccumulation potential.

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