Figure 7
Results of sediment composition analysis by XRF. Relative abundance normalized to the last measurement for the five time-stamped soil samples, for both biostimulation (a and c) and bioaugmentation (b and d) conditions. The last measurement was used for normalization because the first measurement was below the detection limit of the equipment for the metal Ga in the biostimulated sediment. The relative abundance (normalized to the last measurement) is shown for non-target IC, namely Fe, Cu, Al and Zn, represented in blue, orange, green and red, respectively (a and b). The critical target metals Ga, Rb, Sr and Y relative abundance is represented in purple, brown, pink and grey, respectively (c and d).
