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Environmental fate & pathways

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Biodegradation in water: screening test

The test item was investigated for its ready biodegradability OECD 301 F (1992) test under GLP conditions. After 28 days exposure the mean biodegradation of the test substance amounted to 77%. Consequently, the test substance was found to be biodegradable by 77% under the test conditions within 28 days. However, the pass level for ready biodegradability, i.e. biodegradation of at least 60% of the ThOD in a 10-day window within the 28-day period of the test, was not reached. However, the 10 day window is not applicable for the test substance, as the test substance is a multi-constituent substance. The test substance is regarded as readily biodegradable. Furthermore, this conclusion is supported by another non-GLP study.

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