TABLE 1.
Metal(loid) content of sewage sludge determined by XRF analysis (only elements which are of interest for this study are listed) and volatile metal(loid)s detected in the headspace of the incubated sewage sludge samples after 1 week at 37°C
| Metal(loid) | Content (mg/kg [dry wt])a | Volatile species | Content (ng/liter)b |
|---|---|---|---|
| Te | 0.2 ± 0.1 | DMTe | 1.9 ± 0.15 |
| Bi | 1.4 ± 0.3 | TMBi | 46.2 ± 6.9 |
| Se | 1.5 ± 0.5 | ||
| Sb | 1.7 ± 0.3 | TMSb | 77.5 ± 4.6 |
| Hg | 3.0 ± 1.2 | Hg0 | 0.29 ± 0.16 |
| As | 15.2 ± 1.3 | AsH3 | 0.76 ± 0.21 |
| MMAs | 0.68 ± 0.45 | ||
| DMAs | 0.51 ± 0.36 | ||
| TMAs | 3.3 ± 1.3 | ||
| Sn | 25.4 ± 0.3 | TrMSn | 0.29 ± 0.18 |
a
Mean values ± absolute errors are listed.
b
Mean values of three independent measurements ± standard deviations are listed.