| Elements/Detection limits in µg/g | |||||||||||||||
| Al | Fe | Ti | Ag | As | Ba | Cd | Co | Cr | Cu | Mn | Ni | Pb | Zn | Total toxic conc. metals | |
| Sample Code | 10 | 10 | 10 | 1.00 | 1.00 | 1 | 0.50 | 1.00 | 1.00 | 1.00 | 10 | 1.00 | 1.00 | 1 | |
| 1-A | 1521 ± 0.01 | ND | 65 ± 0.00 | ND | 9.04 ± 0.06 | 1216 ± 0.07 | 0.84 ± 0.01 | 13.99 ± 0.09 | ND | 19.09 ± 0.01 | 10 ± 0.10 | 14.16 ± 0.20 | ND | 1238 ± 0.31 | 4107.12 |
| 1-B | 3200 ± 0.05 | 27454 ± 0.02 | 187 ± 0.15 | ND | ND | 141 ± 0.12 | ND | ND | ND | 8.15 ± 0.10 | 62 ± 0.01 | 20.74 ± 0.02 | ND | 1157 ± 0.23 | 32229.89 |
| mean | 2360.5 ± 0.03 | 13727 ± 0.01 | 126 ± 0.075 | - | 4.52 ± 0.03 | 678.5 ± 0.095 | 0.42 ± 0.005 | 7.00 ± 0.045 | - | 13.62 ± 0.055 | 36 ± 0.055 | 17.45 ± 0.11 | - | 1197.5 ± 0.27 | - |
| 2-A | 10018 ± 0.13 | 6379 ± 0.02 | 53 ± 0.21 | ND | ND | 249 ± 0.01 | ND | 4.74 ± 0.01 | ND | 5.47 ± 0.01 | ND | 9.42 ± 0.12 | ND | 831 ± 0.00 | 17594.63 |
| 2-B | 331 ± 0.03 | 59702 ± 0.13 | ND | ND | ND | 134 ± 0.31 | ND | 10.36 ± 0.02 | ND | ND | 89 ± 0.90 | ND | ND | 534 ± 0.06 | 60800.36 |
| mean | 5174.5 ± 0.08 | 33040.5 ± 0.08 | 26.5 ± 0.105 | - | - | 191.5 ± 0.16 | - | 7.55 ± 0.015 | - | 2.74 ± 0.005 | 44.5 ± 0.045 | 4.71 ± 0.06 | - | 682.5 ± 0.03 | - |
| 3-A | 11795 ± 0.31 | 196 ± 0.01 | 62 ± 0.01 | 2.82 ± 0.01 | ND | 186 ± 0.11 | ND | 11.39 ± 0.12 | ND | 8.27 ± 0.21 | 11 ± 0.00 | 18.66 ± 0.05 | 4.55 ± 0.12 | 498 ± 0.12 | 12793.69 |
| 3-B | 2807 ± 0.11 | 46212 ± 0.41 | ND | ND | ND | 114 ± 0.02 | ND | ND | ND | 7.75 ± 0.02 | 140 ± 0.01 | 108.02 ± 0.01 | ND | 876 ± 0.03 | 50264.77 |
| mean | 7301 ± 0.21 | 23204 ± 0.21 | 31 ± 0.005 | 1.41 ± 0.005 | - | 150 ± 0.07 | - | 5.70 ± 0.06 | - | 8.01 ± 0.12 | 75.5 ± 0.005 | 63.34 ± 0.03 | 2.28 ± 0.06 | 687 ± 0.075 | - |
| 4-A | 214 ± 0.01 | 188 ± 0.11 | ND | ND | ND | 136 ± 0.03 | ND | ND | ND | 8.94 ± 0.05 | ND | ND | ND | 848 ± 0.04 | 1394.94 |
| 4-C | 509 ± 0.12 | ND | ND | 1.77 ± 0.02 | ND | 97 ± 0.02 | 0.86 ± 0.10 | 1.72 ± 0.01 | ND | ND | ND | ND | ND | 591 ± 0.01 | 1201.35 |
| 4-B | 201 ± 0.02 | 2703 ± 0.23 | ND | ND | 4.67 ± 0.04 | 119 ± 0.05 | ND | ND | ND | 1.59 ± 0.01 | 13 ± 0.01 | 22.79 ± 0.30 | ND | 1013 ± 0.12 | 4078.05 |
| mean | 308 ± 0.05 | 963.67 ± 0.11 | - | 0.59 ± 0.007 | 1.56 ± 0.013 | 117.33 ± 0.03 | 0.29 ± 0.033 | 0.57 ± 0.003 | - | 3.51 ± 0.02 | 4.33 ± 0.003 | 7.60 ± 0.10 | - | 818.33 ± 0.056 | - |
| 5-A | 7009 ± 0.12 | ND | 45 ± 0.02 | ND | 4.71 ± 0.01 | 3466 ± 0.21 | ND | ND | ND | 6.16 ± 0.00 | ND | 11.46 ± 0.03 | ND | 504 ± 0.01 | 11046.33 |
| 5-B | 3080 ± 0.23 | 7338 ± 0.03 | 58 ± 0.00 | ND | ND | 2767 ± 0.07 | ND | ND | ND | ND | 16 ± 0.01 | 25.57 ± 0.03 | ND | 1004 ± 0.12 | 14288.57 |