Table 1 Main features of soil. Main chemical, mechanical and microbiological properties of soil S3. Each value of biomass concentration is the average of duplicate analyses performed on a single sample of soil
| Â | Parameter values |
|---|---|
Chemical characteristics | Â |
PCB concentration estimated by using Aroclor 1242 and 1260 as standards (mg/kg of dry soil) | 920 |
Total Organic Carbon (g/kg) | 19.5 |
Total Nitrogen (g/kg) | 1.3 |
Total Phosphorous (g/kg) | 0.7 |
Chloride ions (mg/l, in a 25% w/v soil suspension) | 10.1 |
pH | 7.2 |
Mechanical characteristics | Â |
Moisture of the air-dried soil (g/kg) | 7.3 |
Field capacity (% w/w) | 20.3 |
Sandy fraction (0.053–2 mm) % w/w | 90 |
Loamy fraction (0.002–0.0053mm) % w/w | 9 |
Clay fraction (< 0.002 mm) %w/w | 1 |
Microbiological characteristics | Â |
Heterotrophic cultivable aerobic bacteria (CFU/g of dried soil) | 4.88 × 107 ± 7.00 × 105 |
Aerobic bacteria growing on biphenyl (CFU/g of dried soil) | 2.51 × 103 ± 4.92 × 102 |
Aerobic bacteria growing on CBA (CFU/g of dried soil) | < 102 |
Total aerobic fungi (CFU/g of dried soil) | 2.95 × 103 ± 1.36 × 103 |