Review Article
Current Status of Trace Metal Pollution in Soils Affected by Industrial Activities
Table 5
Statistical summary of trace element concentration (in mg kg−1) in soils affected by industrial activities.
| Industry group short name | Statistical parameter | Trace elements | Pb | Zn | Mn | Ni | Cu | Cr | Fe | Cd | As |
| | Mean | 258 | 190 | 440 | 186 | 137 | 177 | 30.3 | 37.6 | 67.0 | Median | 95 | 102 | 399 | 80.0 | 52.6 | 94.9 | 30.3 | 3.95 | 37.0 | SD | 343 | 234 | 205 | 252 | 244 | 189 | 9.69 | 86.7 | 89.0 | Min | 15.7 | 4.90 | 229 | 3.70 | 1.60 | 12.0 | 23.4 | 0.20 | 3.20 | Max | 973 | 907 | 714 | 801 | 801 | 491 | 37.1 | 289 | 279 | | 16 | 16 | 6 | 10 | 16 | 8 | 2 | 14 | 8 |
| | Mean | 25.2 | 126 | 274 | 57.9 | 63.5 | 16.6 | — | 0.51 | 5.97 | Median | 25.2 | — | 274 | 57.9 | — | 16.6 | — | 0.51 | 5.97 | SD | 13.4 | — | 24.6 | 42.9 | — | 2.57 | — | 0.72 | 0.86 | Min | 1.03 | — | 248 | 27.6 | — | 13.8 | — | 0.16 | 4.71 | Max | 37.8 | — | 297 | 88.2 | — | 20.4 | — | 2.13 | 6.87 | | 6 | 1 | 3 | 2 | 1 | 5 | 0 | 7 | 5 |
| TE | Mean | 124 | 207 | 525 | 51.1 | 136 | 568 | 308 | 42.0 | — | Median | 124 | — | 525 | — | 136 | — | — | 42.0 | — | SD | 95.2 | — | 202 | — | 38.7 | — | — | 58.8 | — | Min | 56.4 | — | 382 | — | 109 | — | — | 0.48 | — | Max | 191 | — | 668 | — | 164 | — | — | 83.6 | — | | 2 | 1 | 2 | 1 | 2 | 1 | 1 | 2 | 0 |
| LE | Mean | 29.9 | 132 | 15.3 | 22.1 | 17.2 | 277 | 27.9 | 0.63 | — | Median | 17.0 | 103 | 5.29 | 22.1 | 17.6 | 57.0 | 27.9 | 0.60 | — | SD | 33.6 | 146 | 21.2 | 23.9 | 17.0 | 405 | 13.9 | 0.61 | — | Min | 4.66 | 2.38 | 0.97 | 5.20 | 0.04 | 29.9 | 18.0 | 0.04 | — | Max | 68.1 | 290 | 39.7 | 39.0 | 34.0 | 744 | 37.7 | 1.26 | — | | 3 | 3 | 3 | 2 | 3 | 3 | 2 | 3 | 0 |
| NM | Mean | 104 | 166 | 255 | 41.9 | 35.8 | 26.0 | — | 25.8 | — | Median | 55.0 | 166 | 217 | 39.0 | 38.4 | 26.0 | — | 5.00 | — | SD | 109 | 171 | 77.9 | 7.24 | 31.6 | 5.30 | — | 40.1 | — | Min | 28.6 | 45.0 | 204 | 36.5 | 2.90 | 22.2 | — | 0.33 | — | Max | 229 | 287 | 345 | 50.1 | 66.0 | 29.7 | — | 72.0 | — | | 3 | 2 | 3 | 3 | 3 | 2 | 0 | 3 | 0 |
| BA | Value | 268 | 169 | — | 39.3 | 62.3 | 100 | — | — | — |
| ND | Mean | 109 | 188 | 283 | 74.0 | 106 | 252 | — | 4.89 | — | Median | 69.9 | 176 | — | 45.0 | 74 | 253 | — | 2.72 | — | SD | 98.2 | 81.2 | — | 62.3 | 95.6 | 203 | — | 5.76 | — | Min | 37.7 | 103 | — | 17.0 | 25.6 | 26.6 | — | 0.70 | — | Max | 293 | 313 | — | 184 | 298 | 521 | — | 13.4 | — | | 6 | 6 | 1 | 7 | 8 | 6 | 0 | 4 | 0 |
| All | Mean | 158 | 180 | 312 | 106 | 106 | 176 | 84.8 | 21.6 | 42.8 | Median | 65.0 | 131 | 280 | 49.6 | 52.6 | 44.0 | 37.1 | 2.00 | 25.7 | SD | 247 | 180 | 208 | 168 | 176 | 217 | 125 | 59.8 | 71.8 | Min | 1.03 | 2.38 | 0.97 | 3.70 | 0.04 | 12.0 | 18.0 | 0.04 | 3.20 | Max | 973 | 907 | 714 | 801 | 801 | 744 | 308 | 289 | 279 | | 37 | 30 | 18 | 26 | 34 | 26 | 5 | 33 | 14 |
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