Table 1.
General characteristics of garden soils collected from the study area
|
Sites |
|
pH |
TOC (%) |
CEC (cmol kg
−1
) |
Pseudo-Total concentration (mg kg
−1
dw) |
|||
|---|---|---|---|---|---|---|---|---|
| Pb | Al | Mn | Fe | |||||
| FE |
Mean |
6.9 |
5.1 |
22.6 |
3170 |
30000 |
1230 |
32600 |
| Range |
5.5-7.7 |
2.4-7.0 |
14.7-27.4 |
850-9300 |
21300-35400 |
872-1600 |
26100-38000 |
|
| BE |
Mean |
7.3 |
5.5 |
22.7 |
29.4 |
17120 |
727 |
19200 |
| Range |
6.8-7.8 |
3.8-8.7 |
17.7-30.3 |
12.0-51.0 |
12400-21200 |
494-897 |
13200-23500 |
|
| AL* |
|
- |
- |
- |
50 |
- |
- |
- |
| IL** | - | - | - | 100 | - | - | - | |
*AL-alert level for soil in sensitive (residential and agricultural) areas (MO 856:1997).
**IL- intervention level for soil in sensitive (residential and agricultural) areas.