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. 2015 Nov 26;5:17284. doi: 10.1038/srep17284

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VC dechlorination (a) and accumulation of ethene (b) in microcosms prepared from top 20 cm riverbed sediment from 2005, 2010, 2011 and 2011 stimulated with tree bark (TB). Sediment bottles of 2005 were re-spiked with VC on day 28 after initial dechlorination of residual VC contamination in the original sample. The day of VC spike was considered as the day zero on the x-axis.