Table 2 Concentrations of metals (mg/kg dw) in diet samples in high background natural radiation area and control area.
Sample location | Sampling time (2018) | As | Hg | Pb | Cd | U |
|---|---|---|---|---|---|---|
High background natural radiation area | 19–23 March | 0.07 ± 0.01 | 0.006 ± 0.001 | 0.09 ± 0.04 | 0.08 ± 0.02 | 0.02 ± 0.01 |
20–24 June | 0.12 ± 0.02 | 0.007 ± 0.001 | 4.6 ± 3.2 | 0.05 ± 0.01 | 0.004 ± 0.003 | |
20–24 August | 0.14 ± 0.01 | 0.006 ± 0.001 | 6.0 ± 2.1 | 0.05 ± 0.01 | 0.007 ± 0.006 | |
15–19 October | 0.12 ± 0.01 | 0.010 ± 0.006 | 3.6 ± 0.4 | 0.06 ± 0.02 | 0.006 ± 0.003 | |
Mean | 0.11 ± 0.03 | 0.007 ± 0.004 | 3.6 ± 2.9 | 0.06 ± 0.02 | 0.01 ± 0.01 | |
Control area | 17–19 March | 0.06 ± 0.01 | 0.005 ± 0.001 | – | 0.04 ± 0.02 | 0.004 ± 0.001 |
9–11 June | 0.066 ± 0.004 | 0.006 ± 0.002 | – | 0.04 ± 0.03 | 0.0030 ± 0.0003 | |
11–13 August | 0.07 ± 0.01 | 0.005 ± 0.001 | 0.07 | 0.05 ± 0.02 | 0.0012 ± 0.0004 | |
12–14 October | 0.054 ± 0.004 | – | 0.06 ± 0.01 | 0.07 ± 0.00 | 0.005 ± 0.004 | |
Mean | 0.06 ± 0.01 | 0.005 ± 0.002 | 0.06 ± 0.01 | 0.05 ± 0.02 | 0.003 ± 0.003 |
