Figure 3 | Scientific Reports

Figure 3

From: Carbon sequestration potential and physicochemical properties differ between wildfire charcoals and slow-pyrolysis biochars

Figure 3

PAHs concentrations (mg kg−1 dry sample) divided in naphthalene (Nap), phenanthrene (Phe), and the sum of the other 14 US EPA PAHs (Others) for (a) forest floor charcoal (FF-C) and biochar (FF-C); (b) dead wood charcoal (DW-C) and biochar (DW-B). The numbers in the X axis indicate the HTT of each sample. Note the different scales for the verticle axis between the two graphs.

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