Table 1: Soil organic matter (SOM), total carbon, total nitrogen and C:N ratios in the six lysimeters (L1–L6). Numbers are mean and standard deviation of n=6 samples from the treatment zone of each lysimeter.

PAH+, HK44+ PAH–, HK44+ PAH+, HK44– L1 L2 L4 L3 L5 L6 SOM% 1.33 ± 0.14 1.23 ± 0.24 1.39 ± 0.33 0.84 ± 0.1 0.79 ± 0.05 1.26 ± 0.28 C% 0.345 ± 0.04 0.312 ± 0.07 0.323 ± 0.23 0.027 ± 0.01 0.020 ± 0.01 0.195 ± 0.14 N% 0.011 ± 0.004 0.008 ± 0.001 0.011 ± 0.004 0.006 ± 0.002 0.007 ± 0.001 0.008 ± 0.001 C:N Ratio 36.64 ± 17.65 40.74 ± 7.95 28.01 ± 11.54 4.36 ± 1.05 3.00 ± 1.00 22.09 ± 12.31