Table 1. Soil C10–C50 and PAH concentrations at the beginning (October 2011) and at the end (April 2012) of the greenhouse experiment.
C10–C50 |
PAH |
|||||
---|---|---|---|---|---|---|
October 2011 (mg kg−1) | April 2012 (mg kg−1) | % Degraded | October 2011 (mg kg−1) | April 2012 (mg kg−1) | % Degraded | |
NC-NP | 0.00±0.00 | 0.00±0.00 | NA | 0.00±0.00 | 0.00±0.00 | NA |
NC-P | 18.33±44.91 | 0.00±0.00 | NA | 0.00±0.00 | 0.00±0.00 | NA |
C-NP | 1,546±635 | 438±104 | 62.0±35.5 | 59.6±31.6 | 8.3±4.1 | 85.1±4.7 |
C-P | 912±402 | 447±167 | 45.6±23.2 | 60.3±37.8 | 8.7±5.9 | 82.9±10.7 |
Abbreviations: C-NP, contaminated, not planted; C-P, contaminated, planted; NA, not applicable; NC-NP, not contaminated, not planted; NC-P, not contaminated, planted; PAH, polycyclic aromatic hydrocarbons.
The % degradation was calculated separately for each of the pots.
Values are average±s.d. (N=6 for all except C-NP, where N=5 after removal of one outlier (pot 62; Supplementary Table S1)).