| Particle Sizes | Heavy Metals | ||||
| Al | Fe | Mn | As | Pb | |
| Sand | +ve ns | −ve * | −ve ns | −ve Ns | +ve ns |
| Silt | +ve ns | +ve ** | +ve ns | +ve ** | +ve ns |
| Clay | −ve ns | −ve Ns | +ve ns | −ve * | −ve ns |