Table 1. The level of cadmium, lead, and mercury in specific street-vended foods sold in Davao City, Philippines
| MRL1) | Grilled chicken intestines (n=20) | deep-fried breaded chicken eggs (n=20) | Steamed dumplings (n=20) | p |
| mg/kg | +ve2) (%) | mg/kg | +ve (%) | mg/kg | +ve (%) | mg/kg |
| Cadmium | 0.001 | 0 | <d3) | 0 | <d | 0 | <d | - |
| Lead | 0.025 | 5 (25) | 0.089±0.369ns4) | 6 (30) | 0.090±0.236ns | 4 (20) | 0.019±0.064ns | 0.059 |
| Mercury | 0.0001 | 16 (80) | 0.044±0.034ns | 16 (80) | 0.069±0.046ns | 18 (90) | 0.062±0.053ns | 0.677 |
MRL is the Maximum Residue Limit.
A positive sample that exceeded the MRL.
<d means below the limit of detection (LOD) = 0.0003 mg/kg.
ns, not significant.