Fig. 3. Polycyclic aromatic hydrocarbon (PAH) concentration in the control soil and Tenax-extracted soil during the AndE soil incubation experiment. Error bars represent one standard error from four replicates. PAHs: phe, phenanthrene; pyr, pyrene; LMW, low-molecular-weight (PAHs with <4 rings of 16 EPA PAHs); HMW, high-molecular-weight (PAHs with >3 rings of 16 EPA PAHs).