Parameters | Unit | S1 | S2 | S3 | S4 | S5 | S6 | S7 | MEAN | STANDARD DEVIATION | VARIANCE |
Lead (Pb) | mg/kg | 17.500 | 6.000 | 6.750 | 0.500 | 2.250 | 4.250 | 1.250 | 5.5 | 5.787918 | 33.5 |
Cadmium (Cd) | mg/kg | 4.575 | 4.225 | 4.150 | 4.950 | 2.125 | 1.975 | 0.775 | 3.253571 | 1.60328 | 2.570506 |
Zinc (Zn) | mg/kg | 39.525 | 28.375 | 22.025 | 22.900 | 46.525 | 33.150 | 6.700 | 28.45714 | 13.01667 | 169.4337 |
Copper (Cu) | mg/kg | 14.800 | 16.750 | 8.350 | 9.775 | 18.575 | 19.100 | 3.025 | 12.91071 | 6.014719 | 36.17685 |
Cobalt (Co) | mg/kg | 928.450 | 1159.425 | 747.275 | 914.850 | 330.600 | 638.725 | <0.001 | 786.5542 | 285.2779 | 81383.48 |
Nickel (Ni) | mg/kg | 33.725 | 19.025 | 12.550 | 14.600 | <0.001 | 23.150 | 10.600 | 18.94167 | 8.550448 | 73.11017 |