Annual Mean (%)a | |||||||
---|---|---|---|---|---|---|---|
Sample | Depth | Dry Weight (%) | Organic Matter (%) | Petroleum Hydrocarbons (mg kgdw-1) | O2 | CO2 | CH4 |
Contaminated | 0.0-0.5 | 94.6 | 2.2 | 500 | ndb | nd | nd |
0.5-1.0 | 96.2 | 0.5 | 330 | 14.6 | 7.2 | 0.0 | |
1.0-1.5 | 93.2 | 2.5 | 8160 | 3.5 | 13.9 | 3.4 | |
1.5-2.0 | 96.8 | 0.8 | 5550 | nd | nd | nd | |
2.0-2.5 | 95.1 | 0.9 | 12590 | 0.2 | 17.5 | 16.2 | |
3.0-3.8 | 47.6 | 40.6 | 44390 | nd | nd | nd | |
3.8-4.0 | 92.9 | 0.3 | <50c | 0.6 | 16.0 | 15.5 | |
4.0-4.5 | 86.0 | 0.6 | 1190 | nd | nd | nd | |
4.5-5.0 | 93.0 | 0.4 | 6820 | 0.5 | 16.0 | 15.4 | |
5.5-6.0 | 92.5 | 0.6 | 10290 | nd | nd | nd | |
6.1-7.0 | 82.7 | 0.4 | 140 | nd | nd | nd | |
Clean | 0.0-1.0 | 95.3 | 0.7 | <50 | nd | nd | nd |
1.0-2.0 | 93.5 | 0.3 | <50 | 20.7 | 0.3 | 0.0 | |
2.0-3.0 | 92.5 | 0.3 | <50 | 18.9 | 2.9 | 0.0 | |
4.0-5.0 | 90.8 | 0.3 | <50 | 18.2 | 3.3 | 0.0 | |
5.0-6.0 | 79.6 | 0.9 | <50 | nd | nd | nd |