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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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A study is planned to assess the biodegradation in water endpoint.

The biodegradation in sediment endpoint has been waived because adsorption studies indicate a very low potential for the test substance to adsorb to sediment, sludge or soil and therefore exposure to sediment organisms is considered unlikely (Log Kow of -1.32, a Koc of <17.8 and a Log Koc of <1.25). Annex IV states simulation testing for sediments is only required for substances with a high potential for absorption to the sediment. No exposure to the environment is anticipated from the use of the ink product. Within the European Union, the Registrant offers a returns programme for their ink printers, empty ink cartridges and larger ink systems used in commercial printing. The Registrant offers an EU-wide take back programme and repurposing programme for 200 L barrels and 1000 L totes. No further testing is required on the basis of a low potential for exposure of the test substance to the sediment environment. No further testing is required.

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