| Local of food | Town | As (µg/Kg) | Hg (µg/Kg) |
| Coyota (wheat cookie) | Ures | 17.99 | 24.51 |
| Corico (corn cookie) | Ures | 36.11 | 11.69 |
| Flour tortilla | Ures | 30.00 | 11.83 |
| Jamoncillo (milk candy) | Ures | 23.69 | 13.1 |
| Traditional bread | Ures | 36.85 | 14.93 |
| Pumpkin empanada (sweet bread | Ures | 48.48 | 15.07 |
| Cooked cheese with chile | Ures | 33.36 | 0.28 |
| Corn tamale | Ures | 12.45 | 1.69 |
| Cooked cheese | Ures | 15.00 | 0.56 |
| Corn tamale | Ures | 9.23 | 4.84 |
| Flour tortilla | Baviacora | 36.56 | 12.54 |
| Homemade bread | Baviacora | 50.68 | 14.65 |
| Chiltepin sauce | Aconchi | 49.43 | 4.93 |
| Big flour tortilla | Arizpe | 43.5 | 14.65 |
| Chiltepin sauce | Arizpe | 24.92 | 5.63 |
| Big flour tortilla | Bacanuchi | 62.04 | 11.55 |
| Flour tortilla | Bacanuchi | 53.24 | 10.99 |
| Cooked cheese | Bacanuchi | 17.4 | 42.68 |