TABLE I.
Summary of Changes Observed in Polycyclic Aromatic Hydrocarbon and Polycyclic Aromatic Compound Levels Throughout the Bioremediation Treatment
| Fraction left in soil after degradation (%) |
|||||
|---|---|---|---|---|---|
| Compound | Concentration in soil (μg/g dry soil) | Day 3 | Day 7 | Day 24 | Day 29 |
| Naphthalene | 17 | 95 | 83 | 76 | 70 |
| Acenaphthylene | 29 | 78 | 74 | 81 | 73 |
| Acenaphthene | 2.4 | 22 | 14 | 0.3 | 0.3 |
| Fluorene | 44 | 27 | 19 | 4.1 | 2.6 |
| Phenanthrene | 330 | 34 | 18 | 8.7 | 6.4 |
| Anthracene | 70 | 63 | 52 | 24 | 14 |
| Fluoranthene | 420 | 93 | 84 | 47 | 37 |
| Pyrene | 290 | 101 | 94 | 65 | 50 |
| Benz [a] anthracene | 190 | 101 | 101 | 62 | 49 |
| Chrysene | 180 | 102 | 98 | 70 | 52 |
| Benzo[b]fluoranthene | 160 | 102 | 93 | 103 | 86 |
| Benzo[k]fluoranthene | 130 | 104 | 102 | 103 | 89 |
| Benzo[a]pyrene | 120 | 102 | 97 | 104 | 91 |
| Indeno[1,2,3-cd]pyrene | 100 | 101 | 94 | 105 | 101 |
| Dibenz[a,h]anthracene | 28 | 102 | 95 | 104 | 93 |
| Benzo[ghi]perylene | 84 | 101 | 94 | 106 | 102 |
| 9-Fluorenone | 26 | 56 | 37 | 24 | 21 |
| 4-Oxapyrene-5-one | 112 | 107 | 149 | 156 | |
| Benzofluorenones (3 peaks) | 101 | 101 | 80 | 64 | |
| Benzothiophene | 27 | 104 | 75 | 53 | 51 |
| Carbazole | 32 | 46 | 29 | 22 | 18 |
| Benzo[b]naphtho[2,1 -d]thiophene | 102 | 100 | 61 | 47 | |
The results are normalized for the raw data obtained for anthracene; day 3: 82%, day 7: 100%, day 24: 79%, day 29: 107%. % degradation was determined by comparing peak areas to available reference standards; for complete data set see Lundstedt et al., 2003.