Table 2.
Estimated daily intakes (EDI) of the heavy metals
| Sample | Cr | Mn | Ni | Cu | As | Cd | Pb | Hg |
|---|---|---|---|---|---|---|---|---|
| HPA | 4.77*10−05 | 1.19*10−04 | 3.18*10−05 | 2.96*10−04 | 4.56*10−05 | 2.95*10−07 | 4.25*10−06 | 0 |
| HPB | 8.35*10−06 | 2.05*10−05 | 5.84*10−06 | 5.01*10−05 | 6.32*10−06 | 5.12*10−08 | 8.60*10−07 | 3.08*10−10 |
| HPC | 1.47*10−05 | 4.67*10−05 | 1.45*10−05 | 1.05*10−04 | 1.36*10−05 | 1.03*10−07 | 9.61*10−07 | 0 |
| HPD | 8.99*10−06 | 1.66*10−05 | 6.75*10−06 | 6.20*10−05 | 7.30*10−06 | 6.03*10−08 | 8.47*10−07 | 1.98*10−08 |
| HPE | 2.26*10−06 | 6.54*10−06 | 1.34*10−06 | 1.36*10−05 | 2.02*10−06 | 1.40*10−08 | 1.81*10−07 | 0 |
| HPF | 3.07*10−04 | 5.19*10−04 | 2.22*10−04 | 1.68*10−03 | 2.48*10−04 | 1.52*10−06 | 1.34*10−05 | 0 |
| Upper tolerable daily intake Reference limits | ||||||||
| CA HP (mg/kg/day) | 3.33*10−04 | NA | NA | NA | 1.67*10−04 | 1.00*10−04 | 3.33*10−04 | 3.33*10−04 |
| WA (mg/kg/day) | 8.33*10−04 | 4.33*10−03 | 2.33*10−02 | 5.00*10−02 | 3.33*10−04 | 1.00*10−03 | 1.67*10−03 | 1.67*10−04 |
CA is for Canadian upper tolerable daily intake reference limits for finish herbal products (HP) in mg/kg (bw/day),1 and ‘WA’ is for WHO/FAO (mg/kg bw/day)42
HPA-F: herbal product A-F. NA means the upper tolerable daily intake reference limit for that particular metal is not available from that authority/ body