Type of food | samples | Mean ± SD | Maximum permisible level of EC | Maximum permisible level of Iran | Maximum permisible level of FDA | p- value | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
As | Cd | Hg | Pb | Cd | Hg | Pb | Cd | Hg | Pb | Cd | Hg | Pb | Hg | Pb | Cd | ||
Legume | (n = 60) | ND | ND | 35.45 ± 6.36 | 562.17 ± 34.39 | – | 20 | 300 | – | – | – | – | 500 | 6000 | 0.040 | 0.042 | – |
Wheat | (n = 30) | ND | ND | 39.54 ± 7.26 | 372.69 ± 26.35 | – | 30 | 500 | – | – | 100 | – | 500 | 6000 | 0.025 | 0.030 | – |
Potato | (n = 30) | ND | 27.46 ± 2.33 | 17.47 ± 1.67 | 470.52 ± 12.61 | 30 | 5 | 100 | – | – | 20 | 100 | 500 | 1000 | 0.04 | 0.043 | 0.043 |