Fig. 3From: Structure and diversity of native bacterial communities in soils contaminated with polychlorinated biphenylsThe principal component analysis separated the relative abundances of the different bacterial phyla found in the sites contaminated by PCBs, both anthropogenic and comparative control, in relation to the types of soil evaluated (Control, HS, HP, F and A). The main component (PC) 1 varies 82.4% of the variation and (PC) 2 (10.5%)Back to article page