Table 4.
Summary of published biogeochemical parameters of SRBs and submerged oil mat (SOM) samples.
| Parameter | Value | References |
|---|---|---|
| Porosity | 0.35 (SRBs) | OSAT-II, 2011; Urbano et al., 2013 |
| 0.07 (SOM) | ||
| Mass | 14.5 ± 3.0 g; 5.6 ± 2.3 g (SRBs from 2 locations) | Urbano et al., 2013 |
| 31.3 ± 2.6 g (SOM) | ||
| Moisture | <0.5% (SRBs) | Urbano et al., 2013 |
| Projected area | 106.4 ± 134 mm2; 55.2 ± 113 mm2 (SRBs from 2 locations) | Lemelle et al., 2014 |
| % Oil | 4.2–12.8% (SRBs) | OSAT-II, 2011 |
| 9.4–16.8% (SOMs) | ||
| N | 1.4–2.0 mg/kg (SRBs) (NH+4) 7.5 mg/kg (SOM) (NH+4) 2 mg/L total N (Grand Isle beach porewater) | OSAT-II, 2011; Urbano et al., 2013 |
| P (orthophosphate) | 0.5–0.66 mg/kg (SRBs) | Urbano et al., 2013 |
| 0.29 mg/kg (SOM) | ||
| Salinity | 1.3–1.5 ppt (SRBs) 59.8 ppt (SOM) | Urbano et al., 2013 |
| Sulfate (water-extractable) | 148–4.3 mg/kg (SRBs) | Urbano et al., 2013 |
| 6.1 mg/kg (SOM) | ||
| Oxygen | ~220 mM (7 mg/L) after wetting 0–180 mM (0–5.76 mg/L) after 4 days in aerobic seawater 0.4 mg/L in Grand Isle, LA beach porewater | OSAT-II, 2011; Urbano et al., 2013 |
| Microbial populations | Known PAH degraders: Mycobacterium sp. (SRBs) | Urbano et al., 2013 |