Table 10 Carcinogenic risk (CR) values for As, Cd and Pb for adults and children, compared against USEPA/WHO safety thresholds.
Metal | Median | Mean CR (Adult) | P95 | Max | Median | Mean CR (Child) | P95 | Max |
|---|---|---|---|---|---|---|---|---|
As | 8.09 × 10–5 | 8.69 × 10–5 | 1.89 × 10–4 | 2.07 × 10–4 | 3.77 × 10–5 | 4.06 × 10–5 | 8.80 × 10–5 | 9.64 × 10–5 |
Cd | 3.82 × 10–7 | 4.36 × 10–7 | 1.16 × 10–6 | 1.34 × 10–6 | 1.78 × 10–7 | 2.04 × 10–7 | 5.40 × 10–7 | 6.27 × 10–7 |
Pb | 1.14 × 10–7 | 2.71 × 10–7 | 9.66 × 10–7 | 1.30 × 10–6 | 5.31 × 10–8 | 1.27 × 10–7 | 4.51 × 10–7 | 6.05 × 10–7 |