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Environmental fate & pathways

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Styrene oxide is readily biodegradable. In a CO2Evolution Test conducted according to OECD Guideline 301B styrene oxide was biodegraded to 81 and 90 % after 28 days. Therefore further testing on biodegradation (simulation testing in water and sediment and biodegradation in soil ) does not need to be conducted, as the test substance is readily biodegradable. Furthermore no direct or indirect exposure of environment is to be expected, as the test substance is processed under strictly controlled conditions as outlined in CSR chapter 9.