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Environmental fate & pathways

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Two studies using a standardized OECD 301F test guideline are available for hydrocarbons, C7-C9, isoalkanes (ExxonMobil Chemical 1998a, 1998b). Results from this manometric respirometry test procedure demonstrated 60% biodegradation of hydrocarbons after 60 days with an unadapted inoculum and 64% degradation after 75 days with an adapted inoculum. These results demonstrate that the substance, hydrocarbons, C7-C9, isoalkanes, is inherently biodegradable and not expected to persist in the environment under aerobic conditions.

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