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Environmental fate & pathways

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The ready biodegradability of Piperonyl butoxide (PBO) was estimated in a mineral test medium which was inoculated with micro-organisms from a municipal wastewater treatment plant. Piperonyl butoxide (PBO) cannot be considered as readily biodegradable under the conditions of the closed bottle test (OECD 301 D) (degradation of Piperonyl butoxide after 28 days: -1.2%).